Are you looking for a JavaScript development company to create a website with cross-platform compatibility and ensure a top-tier user experience for your customers? We have evaluated countless success stories, client feedback, and service offerings of leading JavaScript development agencies to build our listing — all to help businesses like yours find the right partner. Browse our directory and customize your search by pricing, minimum budget, team size, location, and other criteria to begin your search.
Best JavaScript Development Agency Rankings
12 Companies - Rankings updated: April 04, 2026
All agencies on DesignRush undergo evaluation based on professional expertise and verified client reviews. Please note that certain placements are paid partnerships.
World's #1 Rated & Reviewed App, Website & Software Development Company
Worlds #1 Rated & Reviewed Tech Partner, Probey Services is a world-renowned IT and digital solutions company, headquartered in London, UK, with a state-of-the-art development center in India and 11 international branches across the USA, UK, Australia, Dubai, and beyond. [... see all Probey Services reviews ]- Location
- Washington DC, Washington DC
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $50/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 130 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsProbey Services Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
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React Native Project for Health Care Company App Development for Health Care 
React Native Project for Food and Beverage Company Food Delivery App Development Mealawe 
Web3 Development Project for Restaurants Company Web App Experience Resort Kaskady 
Web3 Development Project for Corporate Services Company Web Development - Coexivity
Reviews verified by DesignRush and sourced from the agency's profileProbey Services Reviews & Testimonials
Web Design Review from Ronan Blake
As we are in the sustainability industry, it was essential for us to have a website that not only looks professional but also conveys our brand story clearly and engagingly.The team at Probey Services was extremely responsive and patient throughout the work process. They were open to our feedback, suggested creative ideas, and paid close attention to the small details that made the final result stand out. The website is user-friendly, visually appealing, and has made it much easier for us to showcase our products to potential clients.We’re pleased with the entire experience and would definitely recommend Probey Services to anyone looking for reliable and high-quality website development.
Show moreWeb Design Review from Leander Cross
I am extremely satisfied with the website Probey Services developed for us. The team took the time to understand our vision and delivered a modern, user-friendly design that perfectly reflects our brand.They combined strong technical skills with smart SEO practices, ensuring fast performance and improved visibility. Communication was clear, deadlines were met, and the entire process was smooth and professional.The experience with Probey Services was more than satisfying.
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Web Design Review from Mona Kaia
Probey Services has truly developed and presented my presence as an artist. They created a stunning portfolio and website that beautifully showcases my music, albums, and artistic journey. The branding and logo design were crafted with precision, giving my identity a strong and memorable touch. Other than that I have outsourced my Social Media to them for a year, and their social media marketing strategies have expanded my reach, allowing me to connect with my audience more effectively. The team is professional, responsive, and exceptionally creative, making the entire process smooth and enjoyable. I surely recommend Probey Services to any artist, business or any brand looking to make an impact online. May this project and review bring you all the growth and recognition you deserve.I have attached the required photography as per your specifications. Wishing you and your team great success. Hope you achieve all your goals.Thanks again for your outstanding work. I look forward to future collaborations.
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Data sourced from the agency's DesignRush profileBartisans Samyakk 30 Days Fitness Isharya The Estate Residences VegenMart Fresh Menu Application PRAO Fashion Jewellery Audentia Space Wings of Change
Promising customized mobile and web app solutions
Discover excellence with Simpalm's digital solutions. We are more than an app development company; we are your partner in crafting exceptional mobile and web experiences. [... see all Simpalm reviews ]- Location
- Washington DC, Washington DC
- Number of Employees
- Under 49
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 22 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSimpalm Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
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App Development Project for Publishing Company AUDIOBOOKSNOW 
App Development Project for Health Care Company ASRA CODER -(1)-thumb-webp.webp)
App Development Project for Public Safety Company Safety Tracking App -thumb-webp.webp)
App Development Project for Nonprofit Company Midwest Evaluation & Research Mobile And Web App 
App Development Project for Social Networks Company TAPTIN APP 
App Development Project for Gaming Company Bamboo Rewards - Mobile and Web App
Reviews verified by DesignRush and sourced from the agency's profileSimpalm Reviews & Testimonials
Mobile App Development Review from Amanda Chalofsky
My experience with Simpalm was very good. They made a full prototype of our neuro-wellness app so we could show partners and investors what our system looks like. It matched our brand and showed the flow in a simple way. Their communication was steady, they stayed on time, and they explained things clearly. The prototype helped people understand our idea fast, and it moved our project forward. I felt supported the whole time.
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Mobile App Development Review from Matt Rudnick
Working with Simpalm has been a really positive experience. We hired them to handle the frontend development of our mobile app for iOS and Android, while our backend was already in place. From the start, their team communicated clearly, stayed organized, and met every deadline we set. They were flexible when we added new features, and their designer’s input really helped improve the look and usability of the app. I appreciated how reliable and easy they were to work with having a U.S.-based team made communication smooth and fast.
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Web Design Review from Steve Dickson
Simpalm partnered with us to redesign, develop, and deploy our corporate website, providing strong value and creativity throughout the process. Their design phase was particularly impressiveusing Figma, they collaborated closely with us, provided creative infographics and visual assets, and delivered polished branding and wireframes that aligned with our goals. This allowed us to confidently defer much of the creative direction to them while still having opportunities to review, provide input, and iterate over alternatives.Project management was handled through a dedicated project manager, with virtual meetings and a collaborative project site keeping communication organized. From the outset, we agreed that achieving a high-quality design was more important than strict timelines, and Simpalm supported that approach. The design phase was timely and well-executed, and overall, they remained responsive and delivered the key milestones.Most importantly, the website is now fully deployed in production and reflects the design sessions and specifications we set. The end result is a responsive, user-friendly site that enhances our branding and capabilities. What impressed us most was the value Simpalm delivered: strong design and creativity, great collaboration, and a willingness to bring forward ideas while working with us to refine the final product.
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Data sourced from the agency's DesignRush profileTaptin AudiobookNow Forte Payment System GWU ASRA App Window Nation Winematch Connect Pepsi Inc Blanco KonnectApp
Top Rated SEO Agency by Forbes, USA Today, Backlinko, & Search Engine Land
Searchbloom is an award-winning, performance-driven digital marketing firm specializing in SEO, PPC, and CRO. We build custom strategies around business models and margins, execute under one roof, and stay accountable to measurable revenue focused results for mid market and enterprise brands. [... see all Searchbloom reviews ]- Location
- Washington DC, Washington DC
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 9 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSearchbloom Services
Reviews verified by DesignRush and sourced from the agency's profileSearchbloom Reviews & Testimonials
SEO Review from Sacha Awwa
Outstanding SEO Partner They Deliver Every TimeSearch Bloom is hands down the best SEO company I've worked with. What sets them apart is their commitment to actually delivering on what they promise something that's honestly rare in this industry.The team consistently extends themselves to push through challenges and get results. I've worked with them to support my clients' needs, and they've been nothing short of amazing on all fronts. Their level of trust and reliability is exactly what you want in a strategic partner.If you're looking for an SEO company that won't just talk the talk but will actually deliver, Search Bloom is it. Highly recommend them without reservation.
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Advertising Review from Clayton Johnson
Searchbloom managed our SEO and Paid Search Advertising channels with much success. They are deeply knowledgeable and professional. They can explain why they make the choices they do and provide a clear strategic vision for how to grow our brand in a challenging environment.
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SEO Review from Anonymous
Our traffic has increased and our keyword positions have improved to the point where we’re ranking on page one. We know SEO is a long-term effort, but we’re happy with the results so far. What stands out most about Searchbloom is their transparency and integrity.
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Data sourced from the agency's DesignRush profileNordstrom Bill.com 1800 contacts Idera, Inc. Divvy Wh Law Schwartzapfel Lawyers Goedeker's Suse DeWils
Your Vision. Our Expertise. Shaping the Future!
TekRevol is a global leader in digital innovation, dedicated to creating advanced products ranging from mobile apps to AI-enhanced software solutions. Our goal is to help businesses outperform their competitors and boost ROI through cutting-edge technology. [... see all TekRevol reviews ]- Location
- Washington DC, Washington DC
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 36 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTekRevol Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
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App Development Project AMJ Workplace Wellness 
App Development Project Selah 
App Development Project Ether Legends 
App Development Project Beach Bandits 
App Development Project Stop Vaping Challenge 
App Development Project Rev Coin
Reviews verified by DesignRush and sourced from the agency's profileTekRevol Reviews & Testimonials
Mobile App Development Review from Aleksandra Puzyno I DYWIDAG Concrete
TekRevol did a great job with our app. They understood what we needed and finished everything on time. Working with them was easy and professional. I recommend them to anyone who wants a good app.
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Web Development Review from Sidra Ansari
I recently collaborated with Tekrevol for the development and design of our marketing website, and the experience was outstanding. Their team showcased professionalism, creativity, and a deep understanding of web technologies. The communication was clear and effective, ensuring a smooth process from start to finish.The design and functionality of our website exceeded our expectations, making it not only visually appealing but also user-friendly and responsive across all devices. The project was delivered on time and within budget, reflecting Tekrevol's dedication to quality and client satisfaction.I highly recommend Tekrevol to anyone in need of top-quality web development and design services. Their expertise and customer-focused approach truly set them apart.
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Mobile App Development Review from Sara Kraeski
TekRevol created a design aimed at enhancing the website's accessibility, with the anticipation of boosting traffic and conversion rate.Their team representative effectively communicated clear timelines and objectives. Notably, they exceeded expectations and delivered exceptional application development services. Their excellent communication and responsiveness played a vital role in the project's success.
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Data sourced from the agency's DesignRush profilePure Plank Truth GPT The University of North Alabama Soundly Al Hussaini AMJ Workplace Wellness Selah kinekt Mdrouz Teemates
Experience digital with us.
Social Driver is a leading digital agency specializing in social media, digital strategy, content and video, websites, and brand design. Based in Washington DC, with teams in Seattle, Kansas City, Chicago, and Bellingham, WA, our culture focuses on partnership, creativity, stewardship, and service. [... see all Social Driver reviews ]- Location
- Washington DC, Washington DC
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 4 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSocial Driver Services
Reviews verified by DesignRush and sourced from the agency's profileSocial Driver Reviews & Testimonials
Creative Services Review from Andy Blevins
Social Driver provided branding services for the merger of two national LGBTQ military & veteran nonprofits. They incorporated insight from two boards to produce a name, logo, and branding package. The deliverables have all earned high praise, with the logo and overall brand being versatile and simple. All deadlines were met and communication was a highlight. Their smooth and streamlined process helped us pull everything under the same umbrella to have a united front. I highly recommend them!
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Social Media Marketing Review from David Sallee
Social Driver provided social media marketing workshops and advice for the departments on campus which were involved in social media marketing, such as alumni, athletics, and advancement.Their staff provided in-depth instruction for all appropriate staff and follow-up conversations to support their work.Social Driver has very strong technical skills. They also demonstrate a very high level of insight for applications of social media that go far beyond technical insights into human insights.
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Web Design Review from Eileen Kessler
My company worked with Social Driver to redesign the UX/IA for a national scientific organization's extensive research resource that was moving from print to online. There was a tight deadline to conceptualize a new user experience and create a framework that our client could review iteratively. Our client was very pleased with the results of the new interactive framework and design. This design was used for the build of the web site which began immediately upon completion. Highly recommend!
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Data sourced from the agency's DesignRush profileAmerican Academy of Family Physicians American Nurses Association The Education Trust Goodwill Industries International Target Cigna Modern Military Association of America National Association of Convenience Stores Leading healthcare and education organizations
Mobile & Web Development Company
Surf develops client and corporate solutions from scratch, covering native and cross-platform mobile apps, web apps and services, AR and ERP systems. Over 13 years, we've built apps for KFC, Mars, The Home Depot, Burger King, SAP, plus over 200 other brands. [... see all Surf reviews ]- Location
- Washington DC, Washington DC
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $49/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 10 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSurf Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
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App Development Project Two Native Apps for an Online Fashion Shop 
App Development Project An App for a Luxury Clothing Brand 
App Development Project Digital Transformation Package For KFC 
App Development Project Family Banking App for SBI Group 
App Development Project App Design for Pizza House 
App Development Project Banking App For Société Générale
Reviews verified by DesignRush and sourced from the agency's profileSurf Reviews & Testimonials
Mobile App Development Review from Ann Jerovski
The goal was to create an AR application that helps third-party clients see the entire business process.The end deliverable was a success. Third-party clients were able to see the whole business process and decide if they needed solutions from the client. The communication with the client was smooth. Overall, the team made the corrections and implemented solutions to enhance the client's services.
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Mobile App Development Review from Anne Diganova
A women's clothing retailer hired Surf to assist in the development of their app. Thanks to Surf’s efforts, the client was able to release the app on Black Friday, saving 40% of their budget. The team was communicative, responsive, and professional throughout the engagement. They worked in a very organized way, taking into account all business needs.
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Mobile App Development Review from David Dilson
Thanks to Surf's efforts, they successfully created a functional app. As a result, the volume of downloads was over 500 thousand with great ratings in the app store. Moreover, the conversion rates were excellent. Their communication skills and expertise in the industry stood out in the partnership.
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Data sourced from the agency's DesignRush profileSociete Generale KFC Burger King Mars The Home Depot Dodo pizza SAP TAG Twim Henderson
Handcrafting Websites that Unlock Business Growth.
Our passion is creating custom websites for brands that care about showing up looking clean. We especially work with early stage startups. [... see all Handbook reviews ]- Location
- Washington DC, Washington DC
- Number of Employees
- Under 49
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsHandbook Services
Reviews verified by DesignRush and sourced from the agency's profileHandbook Reviews & Testimonials
Web Development Review from Liz Ryan
Handbook handles our website development and web-based front end product development. From the initial concept to the final launch, the team always demonstrates a deep understanding of our needs, and delivers on the requirements quickly and completely.If you're looking for a skilled, reliable, and innovative website developer, I highly recommend Handbook. They have been a fantastic partner, and we look forward to working with them again in the future!
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Web Development Review from Victoria Lee
I can count on one hand the number of companies Ive worked with in my career that possess the same level of dedication, responsiveness, attention to detail, and trustworthiness as that of an internal team and thats because theres only one: Handbook.First and foremost, Id like to say that if you're considering working with Handbook for your design and/or website development needs, you absolutely will not regret it. The Handbook team goes beyond simply executing our requests, which has not only been refreshing but has also been key to our growth as an online SaaS business.Handbook genuinely cares about our user experience, website performance, and broader business goals. Instead of just implementing what we ask for, they actively evaluate our needs and offer thoughtful recommendations to improve our outcomes.In addition to the quality of work and forward-thinking perspective, we know that we can count on Handbook to be there when we need them. From countless late-night sale asset takedowns to weekend staging QAs so we can feel confident about Monday morning launches, I have never experienced this level of communication and dedication from a company.I would recommend Handbook time and time again to absolutely anyone in need of web development, design, or messaging support. These guys are a rare find and your only regret will be that you didn't start working with them sooner.
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Web Design Review from ✌🏻Jason Steele
Pat and team are great web designers and developers who have really helped us out in multiple areas of web design and development. Trustworthy, easy to communicate with, and I feel like they go the extra mile. Will definitely work with the team again.
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Data sourced from the agency's DesignRush profileBloomfilter AppSOC Sketchy Plato Pet Tractor Vision HNY+ Ryan Sports
We design and develop web experiences exclusively for nonprofit organizations.
We are an award-winning digital agency specialized in web development, website design, digital strategy, and web security for nonprofit organizations. [... view IndieTech Solutions profile ]- Location
- Washington DC, Washington DC
- Number of Employees
- Under 49
- Average Hourly Rate
- $200/hr
- Minimal Budget
- $10,000 - $25,000
- Portfolios Count
- 9 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsIndieTech Solutions Services
Reviews verified by DesignRush and sourced from the agency's profileIndieTech Solutions Reviews & Testimonials
Stephanie Clegg's Review Sourced from Google
Working with Indie Tech is the difference between having a vision and making it a reality! Their team's expertise, creativity, and attention to detail was key to building an informative, user-friendly website that meets the need of our audiences.I highly recommend them for any organization seeking a collaborative thought partner, whether building a website from the ground up, refining an existing project or creative problem-solving through interactive tools and user journeys. Their clear communication and flexibility paired with passion and commitment for human rights make them an ideal partner for nonprofits.
Show moreEunjin Jeong's Review Sourced from Google
IndieTech Solutions was an absolute pleasure to work with. Their kindness created a welcoming and supportive environment from the very first day our teams met. Their professionalism was exceptional, with prompt responses, rigorous attention to detail, and a commitment to understanding and translating our vision into stunning web designs.What truly set them apart was their flexibility. Despite our shifting needs and demanding requests, they accommodated everything with grace, adjusting their workflows to meet our timeline changes and evolving project scope. Their team spirit was admirable. From project managers to developers and designers, their collaboration was seamless. Most notably, they are specialized in non-profits. They understood our unique challenges and tailored their designs and solutions accordingly. Their expertise in supporting causes like ours went beyond technical expertise; it was a value-sharing partnership, which we enjoyed very much.We highly recommend ITS to any organization or individuals seeking website development services, especially non-profits.
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Data sourced from the agency's DesignRush profileAmnesty International USA Welcome Corps America's Promise National Partnership for New Americans Good Jobs First
Full Service WordPress Web Design & Development Agency.
Ask the Egghead is a full-service WordPress web design and development agency. An Egghead will help you develop ideas and projects, transform your organization, and grow your business. [... see all Ask The Egghead reviews ]- Location
- Washington DC, Washington DC
- Number of Employees
- Under 49
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAsk the Egghead Services
Reviews verified by DesignRush and sourced from the agency's profileAsk the Egghead Reviews & Testimonials
Web Design Review from Connie Stevens
My experience with the "Ask the egghead" has been fantastic. Though I have previously worked with many web designing companies, but they are the most skilled and professional team that I have encountered. They are intuitive and create website designs with a lot of patience and creativity.
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Small Business Review from Janice Howard
When it comes to creating professional, attractive and standard website, nobody can beat "Ask the egghead". Thanks to them that our website has taken off the search engine like the rocket and our business has seen a huge boost.
Show moreSally Reddy's Review Sourced from Google
I recently opened my own business and needed all the technical support I could get to start off on the right foot. I came across Steven May, and he has been amazing! He strikes the perfect balance between technical expertise and business-focused solutions. Communication was always prompt and clear—whether by email, phone, or text. Whenever an issue came up, he not only explained the problem and solution in detail but also guided my team and me until everything was fully resolved. His professionalism, knowledge, and ongoing support have been exceptional!
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Data sourced from the agency's DesignRush profileApace Forms, LLC August Precision, LLC My Health GPS NFF Inc. Simple Technology Solutions Inc. The Development & Construction Partnership, Inc. Urban Brokers Real Estate, LLC Blue Ridge Mountain Real Estate, LLC Finbury & Sullivan, LLP Green Flash Music
Technical Solutions and Digital Marketing
Unlock unmatched potential for your business with our cutting-edge technology solutions. As your dedicated partner, we deliver superior services, ensuring you stay ahead of the curve. [... view TechNovaTime profile ]- Location
- Washington DC, Washington DC
- Number of Employees
- Under 49
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTechNovaTime Services
Reviews verified by DesignRush and sourced from the agency's profileTechNovaTime Reviews & Testimonials
Nooni's Review Sourced from Google
As a non-technical founder, I was struggling to get my product out to market quickly enough. With the overload of information and resources online, I really couldn't figure out what I needed to do. That is, until I came across the Tech Nova team who hand held me every step of the way and were able to make my MVP vision come to life.
Show moreAshraf Bedir's Review Sourced from Google
This company has been a great partner for my Amazon store, Holey Pillows. I called up TechNovaTime just to take advantage of the free consultation and trial but immediately knew I would use these guys for the longterm. Their digital marketing team helped me with SEO (a foreign concept to me) content marketing, and social media which has significantly boosted sales. They really understand Amazon inside out and know how to optimize listings. My favorite part of working with them is all the data they give you. They really push the meaning of data-driven results to the max. My advice, go get that free trial or consultation, you wont regret it.
Show moreOmar Abdelhamid's Review Sourced from Google
The answer is Yes, give these guys a call. Ive known the company owner for years, and he is a brilliant mind. TechNovaTime was able to boost our website's visibility on search engines with killer SEO strategies. It took time, but it worked. Given that I am in private legal consulting, social media for me is huge and having them manage and engage our audience has been amazing for the company. Another thing worth mentioning is their email marketing. I didnt realize how essential that was since I always hated the idea of cold emailing, but thats also been a game changer. Dont hesitate, book these guys for a call!
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Data sourced from the agency's DesignRush profileLucien Faber Art Amazon GP Jewelry
Transform Customers Into Fans
Niftic Agency is a creative powerhouse that transforms customers into devoted fans. We focus on human-centered strategies and specialize in brand strategy, branding, CRO and custom web and application development. Our goal is to create experiences that foster long-term loyalty and deliver exceptional results. [... view Niftic Agency profile ]- Location
- Washington DC, Washington DC
- Number of Employees
- Under 49
- Average Hourly Rate
- $199/hr
- Minimal Budget
- $10,000 - $25,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsNiftic Agency Services
Reviews verified by DesignRush and sourced from the agency's profileNiftic Agency Reviews & Testimonials
Thijs de Jong's Review Sourced from Google
Excellent experience working with Niftic Agency. Top-notch communication throughout the project, high quality work, and a friendly, knowledgeable team. Could not be happier with the final product
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Data sourced from the agency's DesignRush profileThe North Face Lexus ClimateWorks Foundation Olympic Channel
Inspiring Businesses With A Growth Mindset
Alliance is an award winning digital marketing agency, SE0, web design and website maintenance services. Since 2003, our team specializes in helping brands generate growth that matters. The team has extensive background in working with B2B's, service firms, nonprofits and many more. [... view Alliance Interactive profile ]- Location
- Washington DC, Washington DC
- Number of Employees
- Under 49
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAlliance Interactive Services
Reviews verified by DesignRush and sourced from the agency's profileAlliance Interactive Reviews & Testimonials
Sarah McKinley's Review Sourced from Google
For the past 20 years, our company has been honored to help some of the world's best firms restructure sales and marketing divisions.We had engaged Alliance Interactive to redesign a 200-page website with functionality improvements; the scope of work was massive.At the time, our website ranked well and with sufficient conversion rates, but it needed to be modernized.However, it was imperative that conversion rate, branding and search engine results be maintained.Therefore, we began looking for digital marketing companies to assist with a complete redesign.For context, we budgeted about $35,000 for the website redesign and overhaul project. Therefore, we had many digital marketing firms to choose from.After interviewing about a dozen, we ended up choosing Alliance Interactive. They blew away expectations.Our project manager was extremely smart and innovative. He learned our business advantages very quickly and made great suggestions. Alliance Interactive made our site look very creative, yet kept it user-friendly.The visual layout was artistic, yet professional. We could not have been happier. Very smart investment on our part and thank you to the Alliance Interactive team.
Show moreChristian M's Review Sourced from Google
Adam and the team did a great job for Sodexo. They created great website, powerpoint and document designs. Good team. Great work. Awesome Value.
Show moreMichael McLain's Review Sourced from Google
Our existing website was constantly breaking and had plenty of issues whenever you wanted to update it. Alliance Interactive redesigned our website, switched our hosting provider and helped optimize the speed of the site. Our operations are running much smoother.
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Data sourced from the agency's DesignRush profileWorld Bank George Mason University Aurality
Why People Trust DesignRush
Rated 4.8 on Google and 4.7 on Trustpilot, the DesignRush Agency Directory is a reliable resource for finding top JavaScript development companies. We owe this to our executive selection team, which follows a strict screening process when featuring agencies on the platform, assessing key performance indicators, like portfolio, client reviews, and industry reputation.
Sources
DesignRush sustains a directory of over 30,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:
- Our dedicated team of agency experts actively searches the web for top-performing companies. We then pull information from their websites, online presence, and client testimonials to verify their status and qualifications prior to listing.
- The agencies listed get notified of their profiles on the website and they can choose to claim it or not, which suggests their availability for more collaborations.
Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.
JavaScript Development Company Hiring Guide
What is a JavaScript development company?
A JavaScript development company is a company that develops and maintains web applications and software using JavaScript, a widely used programming language for front-end and back-end development. Its expert developers specialize in various JavaScript frameworks and libraries, such as React, Angular, Vue.js, Node.js, and jQuery, delivering intuitive and user-friendly websites.
Businesses often seek the help of a JavaScript development agency to address challenges, such as:
- Lack of skilled in-house talent
- Outdated legacy systems in place
- Limited technical expertise to handle complex projects
- Tight development timeline
- Budget constraints in hiring an in-house development team
- Limited foresight of industry trends and best practices
Hiring JS development services ensures that a business’ website, software, or application has a modernized user interface and provides a seamless user experience. By partnering with a reputable JavaScript development company, businesses can unlock the full potential of their online presence, enhance user satisfaction, and drive growth.
Success story
Our team of experts handpicked this case study to emphasize the benefits of hiring a reputable JavaScript development company to drive business growth:
- Challenge: FINN, a German-based car company, struggled with organizing its operations and automating its processes as it expands to the US. However, its current subscription system relies on older technologies like manual spreadsheets and emails. The car company needed a partner to transform its internal tools to optimize workflows and make the app easy to navigate for users.
- Solution: Cheesecake Labs helped FINN’s existing engineering team automate its processes. It also modernized its back end and internal tools by adding key features in its customer portal, allowing users and team members to easily and efficiently perform tasks like ordering or making account changes. Using Node.js, Typescript, and a PostgreSQL database, Cheesecake Labs transformed FINN’s US operations.
- Results: The partnership resulted in an over 1,200+ increase in subscription for FINN. The internal tools built by Cheesecake Labs also generated significant usage, with a boost of 6,000+ page views per month.
What does a JavaScript development company do?
A JavaScript development company creates web and mobile applications, websites, and interactive user interfaces using JavaScript and its associated frameworks like React, Angular, and Node.js.
It provides full-stack development services, handling the client-side (front-end) and server-side (back-end) aspects of an application. They build scalable, responsive, and dynamic solutions tailored to client needs, ensuring cross-browser compatibility and optimizing performance.
Additionally, they may offer consulting, maintenance, and integration with other technologies to ensure a seamless user experience and continuous support for ongoing projects.
Their standard services include:
- Web application development
Developing interactive and dynamic websites that enhance user experiences - Custom software development
Developing tailored software solutions to meet specific business needs - Front-end development
Designing and building the user interface of web applications, making them visually appealing, and optimizing user interface and experience (UI/UX) - Back-end development
Developing the server-side logic of web applications, handling data storage, retrieval, and processing - Cross-platform app development
Creating mobile apps that work on both iOS and Android platforms - JavaScript consulting
Providing expert advice and guidance on JavaScript development projects - JavaScript maintenance and support
Ensuring the ongoing performance and security of JavaScript applications
Success story
This case study showcases the services that enables a JavaScript development agency to deliver exceptional software systems that can contribute to boosted productivity and operations:
- Challenge: A financial services company wanted a simple, intuitive application to manage resources, tasks, and projects. The goal was to replace Jira and Excel templates with a more comprehensive solution tailored to its specific needs.
- Solution: DevsData Tech Talent developed a custom-built enterprise resource planning (ERP) system with advanced features, such as automated notifications and report generation. It also features robust encryption and a comprehensive permission system powered by its JavaScript framework tech stacks, namely Vue.js, SSS, Node.js, and Express.js.
- Results: The partnership resulted in a user-friendly ERP and PM system that perfectly aligned with the client’s needs. The software surpassed Jira in terms of security and processing capabilities, becoming a core tool for day-to-day operations across business departments.
What is the typical timeline for JavaScript development projects?
The typical timeline for JavaScript development projects can take 1 to 12 months, depending on the scope, project complexity, development tools, availability and access to tech stacks and tools, and team location.
To break it down, here’s a general web app development timeline that JavaScript development companies also deploy:
| Phase | Timeline |
Initial planning and concept
| 1-2 weeks |
Designing the web app
| 3-4 weeks |
Choosing the tech stack
| 1 week |
Development phase
| 8-12 weeks |
Testing and quality assurance (QA)
| 3-4 weeks |
Deployment
| 1 week |
Post-launch activities
| Ongoing |
How much does a JavaScript development agency charge for its services?
A JavaScript development agency typically charges between $100 and $250 per hour, depending on the scope, project complexity, seniority of developers, and location.
Here’s a table showing how JavaScript developers charge differently based on where they are based:
| Location | Price |
| Europe | €55-€125 |
| Central or Eastern Europe | €30-€65 |
| India | $20-$50 |
Since JavaScript has different frameworks, costs also differ based on the developer’s expertise, specifically:
| Framework expertise | Price per hour |
| Node.js | $75-$95 |
| React | $70-$90 |
| jQuery | $60-$80 |
| AngularJS | $85 |
On DesignRush, the top JavaScript development companies charge an average of $65/hour. 18.3% of JavaScript development agencies accept projects with a budget of under $1,000, offering basic development services. On the other hand, 4.7% of agencies require projects within a budget of over $50,000, offering custom JS development services.
Why should I hire a JavaScript development agency?
You should hire a JavaScript development agency for its technical expertise in the JavaScript programming language, from its core syntax to advanced frameworks and libraries. Beyond technical proficiency, a JavaScript development agency often strongly understands the broader web development ecosystem. This knowledge allows them to integrate JavaScript seamlessly with other technologies, creating cohesive and user-friendly applications.
Moreover, you should hire a JavaScript development agency because it:
- Has seasoned programmers with proven expertise in JavaScript
- Deploys efficient development processes to reduce development time
- Mitigates common risks in the development process
- Helps your website reach a wider audience by optimizing your website
- Increases productivity for faster time to market
- Improves customer experience through a well-designed and functional website
Success story
In this case study, our experts highlight the importance of choosing an agency with comprehensive skills and experience in JavaScript frameworks to transform innovative ideas into impactful applications:
- Challenge: AskIris, a healthcare mobile application, wanted to address the challenge of hospitals’ inefficient supply rooms, where nurses and other medical professionals spend significant time searching for necessary supplies.
- Solution: Designli developed the minimum viable product (MVP) by prioritizing easy-to-implement features using CSV workflows. To accommodate various hospital systems, the JavaScript development agency designed a customizable solution where hospitals can tailor the app to their specific needs, ensuring a seamless fit with their existing infrastructure. Designli used JavaScript frameworks like AngularJS and NodeJS, along with the cross-platform capabilities of Flutter to enable a scalable backend and a versatile app.
- Results: The collaboration resulted in a successful working relationship between the AskIris and Designli teams, delivering the features needed for the app within budget and on time. With the successful deployment of the app, the client saw tangible improvements in a hospital’s supply room efficiency and streamlined inventory management.
How do I choose the best JavaScript development company for my business?
To choose the best JavaScript development company for your business, follow these steps:
- Define your project goals
Clearly outline the objectives and outcomes you want to achieve with your project. Consider factors like target audience, functionality, and desired features. This will help you identify the right JavaScript development company to deliver your vision. - Research potential companies
Look for companies with a strong track record in JavaScript development. Use online resources, referrals, and industry listings, like DesignRush, to narrow your options. - Evaluate technical expertise
Assess the JavaScript development company’s proficiency in relevant frameworks, libraries, and technologies. Inquire about its experience with modern JavaScript features and best practices. Check if it has expertise in specific areas related to your project. - Request for references
Ask for references from previous clients to get firsthand insights into their experience working with the company. Ask about project outcomes, communication, and overall satisfaction. Online directories, like DesignRush, also offer comprehensive agency profiles with verified client feedback to help streamline your search. - Shortlist companies that align with your needs
Select five agencies with expertise that complement your project. Send a request for proposal (RFP) that outlines the scope of work, timeline, budget, and deliverables. - Assess project management skills
Understand the JavaScript development company’s project management methodologies and inquire about its tools and processes for tracking progress, communication, and risk management. - Conduct interviews
Interview key team members involved in your project to assess their technical skills and communication abilities. Discuss project expectations, timelines, and potential challenges. - Test technical capabilities
If possible, request a small-scale test project or proof of concept to evaluate the team’s skills and work ethic. This can help you assess their ability to deliver quality work and meet your expectations. - Review collaboration style
Assess the JavaScript development agency’s communication style. Consider its collaboration approach and willingness to involve you in the development process. Evaluate its ability to understand and address your feedback effectively. - Evaluate pricing and terms
Request detailed pricing information, including hourly rates, fixed-price contracts, or other payment models. Negotiate terms and conditions to ensure a fair and transparent agreement. Consider factors like payment terms, intellectual property rights, and post-launch support. Pricing and terms are important factors to consider when making your decision. - Make an informed decision
Weigh all factors, including technical expertise, project management, communication, company culture, and pricing. Choose a JavaScript development company that best aligns with your project goals and values.
Are you still looking for a JavaScript development company that can develop a user-friendly website for your business? Visit our Marketplace and share brief details about your project. Our team will recommend the five most suitable agencies for your development needs – for free.
How do I find the best JavaScript development agency on DesignRush that fits my budget?
To find the best JavaScript development agency on DesignRush that fits your budget, use filters to navigate the listing by hourly rate and minimum budget.
Here are some JavaScript development service suggestions based on our different pricing tiers:
| Low Budget: 1k above | |
| Mid Budget: 10k above | |
| High Budget: 50k above |
You can also filter agencies by location, company size, and hourly rate to customize your search according to your preferences and project needs.
What questions should I ask each JavaScript development company before hiring one?
The questions you should ask each JavaScript development company before hiring one include:
Its Relevant Background
- How long has your company been providing JavaScript development services?
- Have you worked with companies of similar size and scope to ours?
- Which JavaScript frameworks and libraries are you most proficient in?
- Can you share some of your most successful JavaScript projects?
- How large is your JavaScript development team?
- What is the average experience level of your JavaScript developers?
- What industry awards or recognition have you received for your JavaScript development services?
- Do you have an in-house UX design team?
Its Services and Processes
- What measures do you take to ensure code quality, readability, and maintainability?
- Do you follow specific coding standards or style guides?
- How do you identify and address performance bottlenecks in JavaScript applications?
- Do you use Continuous Integration/Continuous Delivery (CI/CD) pipelines for your development process?
- What quality assurance measures do you provide?
- How do you manage version control and code repositories?
- What security measures do you offer to protect a client’s data?
- How do you comply with data privacy regulations?
Related to Your Project
- How can you tailor the development of the application in a way that considers the target audience's behavior?
- What specific features or functionalities do you recommend for the application?
- Are there any third-party services or APIs we need to integrate with?
- Can you provide a timeline for completing our project?
- How will we communicate throughout the project, and how often can we expect updates?
- How do you handle unexpected delays or changes in project scope?
- What ongoing maintenance and support will you provide after the project is launched?
- How can you ensure that the application can scale to accommodate future growth?
What are the best JavaScript development companies in the US?
The best JavaScript development companies in the US are:
- Zazz
- 5.0 stars on DesignRush (95 reviews)
- Top clients: JP Morgan, BBC News, PayPal, Harvard Innovation Labs
- BitsWits
- 5.0 stars on DesignRush (60 reviews)
- 5.0 stars on Google (10 reviews)
- Top clients: Grease Monkey, Beats, FitNow, Wisu
- impalm
- 5.0 stars on DesignRush (43 reviews)
- 5.0 stars on Google (2 reviews)
- Top clients: Taptin, AudiobookNow, Forte Payment System, GWU
- Brandabl
- 5.0 stars on DesignRush (42 reviews)
- 5.0 stars on Google (12 reviews)
- Top clients: Gran Coramino, Stanford University, Rich Tech Robotics, Lightspeed Venture Partners
- Surf
- 5.0 stars on DesignRush (39 reviews)
- Top clients: Societe Generale, KFC, Burger King, Mars
About The Author and Expert Reviewer
Selina Garcia has authored 500+ articles and edited 50+ published books in economics, law, and history. Her unique blend of experiences allows her to approach content creation from a well-rounded perspective. Currently, Selina applies her expertise to producing insightful articles on IT, software, and applications for DesignRush.
Sergio is a technology leader with over six years of experience managing global teams and delivering projects across fintech, sportstech, and B2B platforms. At DesignRush, he drove product growth and development execution, building tools that speed up processes by 95% and cut costs by 35% while maintaining full uptime.
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