Discover leading frontend development companies in the United States, renowned for their expertise in crafting captivating user interfaces that deliver conversion-optimized digital experiences.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
United States × Front End Web Development × Transportation & Logistics × $50,000 & Up ×Clear Filters
Solving complex problems with design and technology since 2005.
As a website development agency, Infinum makes it easy to turn your boldest ideas into digital products that streamline processes and grow your customer base. Superior solutions are born from our profound experience in design and technology, helping you reimagine and elevate your business...
Top Services:
- Web Development
- Web Design
- Mobile App Development
- UI/UX Design
- Software Development
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- Location
- Miami, Florida
- Number of Employees
- 250 - 499
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 24 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsInfinum Services
Data sourced from the agency's DesignRush profilePorsche Nike CITI Royal Caribbean Philips Bayer T-Mobile P&G Universal Virgin Mobile
Infinum Reviews & Testimonials
Mobile App Development Review from Matic Debelak
Workstream 1: research and product strategyWorkstream 2: ETP release Technology : Vendor use Flutter framework, which allows one programming language and one codebase to create two different apps (for iOS and Android). Clearly defined roles and responsibilities, communication is clearly and respectfully, very effective project methodology, trying to understand every time how their activities fits into mission of Modra zavarovalnica, respect each member of team, etc.
Software Development Review from Claus-Peter Mueller
We have engaged Infinum to develop an app that would digitalise our leasing process. From creating the initial offer through the necessary financing application and client identification to the final signature – all the steps required to successfully lease a vehicle or other object can be performed in-app, freeing the users of friction and having to deal with tedious paperwork.The app itself in the background has 30+ integrations, while keeping a seamless and quick to follow process on the front for our users. That application is in production and Infinum is responsible for maintaining it and further improving. After the initial development, we have additionally expanded our scope from vehicles to other equipment. They have also developed a Leasing widget, product which enables quick financing model while purchasing a vehicle online on car seller marketplace pages. At this moment, we are still in partnership with Infinum, and their engagement is mainly focused on localising the app to other countries and supporting us in our further business expansion. The work performed was done in Ruby on Rails and React technology, with support of other services.
Web Design Review from Anonymous
Thanks to Infinum's website refresh, the client has seen an almost 100% improvement in their website's conversion rates. The team excels at project management, using the client's own proprietary tool and also Figma very well. Their proficiency in design, delivery, and client relations stands out.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAward Winning Custom Development Experts | ERP Integration | Shopify/BigCommerce
QOLOS (pronounced "koh-lohs") is a U.S.-based software development company, specializing in building custom, high-performance digital solutions for brands that demand innovation. From complex ERP integrations to e-commerce solutions - you are in good hands with QOLOS...
Top Services:
- Web Development
- eCommerce Development
- WordPress Website Design
- UI/UX Design
- Software Development
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- Location
- Green Bay, Wisconsin
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $50,000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsQOLOS Services
Data sourced from the agency's DesignRush profileThermos Certco Stryker Louisville Vegan Jerky Dallas Morning News Dallas Police Department Bancroft and Sons Schneider National Cocktail Courier Restaurant Warehouse
QOLOS Reviews & Testimonials
WooCommerce Review from Amanda Viviano
We hired Qolos to build our local florist shop's website on WordPress and WooCommerce, and we couldn't be happier with the results. From the start, they took the time to understand our business and created a site that's not only beautiful but easy for our customers to browse and shop.The WooCommerce setup was seamless, our online ordering works exactly the way we needed it to. But what really sets Qolos apart is their ongoing monthly maintenance. We never have to worry about updates, security, or technical issues because they stay on top of everything. Any time we've had a question or a small change request, they've been responsive and professional.As a small local business, it means a lot to work with a team that genuinely cares about keeping our site running smoothly. Qolos has been a true partner, not just a vendor. Highly recommend them to any local business looking for reliable web design and maintenance!
Web Development Review from Sanjay Singh
I kept getting negative reviews about my app for technical glitches, heating issues, functionality, loading time, crashing, and more bugs. So, I reached out to QOLOS after going through 2-3 renowned review platforms. I explained my app issue to the team, and they did tremendous work with their mobile testing solutions. Also, I wanted to build a website for my app. They created a feature-rich and seamless website.
Shopify Review from Sarah Nesheim
Working with QOLOS was the best decision I have made in regards to scaling my business. They are professional, so creative, they communicate every step of the way and their pricing is fair for the highest quality work. The designer of our logo and website did it well and I am so impressed and proud of the final product! the designer listened and knew exactly what I wanted which made the process so simple. Seriously could not recommend QOLOS more!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe build mobile apps, web platforms & AI workflows for organisations doing good in the world.
3 Sided Cube is a global mobile app and digital development company with a passion for Tech For Good, championing the genius over the generic to build life-saving, life-changing digital solutions...
Top Services:
- Mobile App Development
- Software Development
- Web Development
- AI Development
- Digital Services
- Show more
- Location
- St. Petersburg, Florida
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts3 Sided Cube Services
Data sourced from the agency's DesignRush profileAmerican Red Cross Surfers Against Sewage Omaze Vodafone | Glastonbury Festival LUSH Global Forest Watch The World Resources Institute University Of Bristol GDPC Wonderbly
3 Sided Cube Reviews & Testimonials
Si Muddell's Review Sourced from Google
Fantastically positive and driven team who on every interaction you just know care deeply about a) what they do b) what they deliver and c) ultimately the experience the end user will have.Hugely impressed with their personal, creative and energy driven approach at the pitch stage, I commissioned 3SC to help us better scope an app. Their task was to take an in-house developed app prototype, and turn it into a fully fledged technical specification with user stories, MoSCoW prioritisation, costs, and an updated look and feel; all done with audience need at the heart.Myself and the wider team have nothing but very good things to say about 3SC. When reflecting on an agency to work with, loads say they can do it, some can actually do what they say they can do, even less do it in the spirit of real partnership and mutually respect/drive. 3SC do all of these excellently. I highly recommend them.
Oliver Morrison's Review Sourced from Google
A passionate team of insanely talented experts, producing industry leading technology for good causes. Highly recommend.
Kev Borrill's Review Sourced from Google
Great Digital agency with a passion for making great mobile apps in the Tech for good industry
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsFor People. For Progress.
Pastilla is a full-service agency based in Los Angeles. We partner with public agencies, nonprofits, and global brands to turn complex missions into clear brand and digital experiences that build trust and move communities to action...
Top Services:
- Branding
- Design Services
- Graphic Design
- Web Design
- Web Development
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- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $185/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 18 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPastilla Services
Data sourced from the agency's DesignRush profileCity of LA Recreation & Parks Black Girls Code Sacramento Public Library Consumer Technology Association Clean Power Alliance Microsoft Metrolink Hollywood Foreign Press Associations (HFPA) Disney Lossan
Supercharge - Innovating Digital Product Development
At Supercharge, we partner with our clients to turn disruption into opportunity by creating transformative digital solutions. With over 200 digital experts across New York, London, Amsterdam, Helsinki, Vienna, and Budapest, we develop digital strategies, design delightful interfaces, and build robust software...
Top Services:
- Software Development
- AI Development
- Digital Services
- Product Design
- Mobile App Development
- Show more
- Location
- New York City, New York
- Number of Employees
- 100 - 249
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 6 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSupercharge Services
Data sourced from the agency's DesignRush profileBritned Eleclink gateretail OTP Bank Kodak Alaris Deutsche Telekom Vodafone Santander VYRD Cambridge Mobile Telematics
Custom Software & AI Development
Montenegro Systems builds custom software and AI solutions for startups, growing businesses, and enterprises. We deliver end-to-end products and outsourced development teams, with a focus on construction, transportation, and real estate...
Top Services:
- Software Development
- AI Development
- Mobile App Development
- Staff Augmentation
- Managed Services
- Show more
- Location
- San Diego, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMontenegro Systems Services
Data sourced from the agency's DesignRush profileEffectiveSoft Fingers Media HES
Related Web Development Specializations in the US
Popular Services
Everything you need to know before hiring a frontend development company in the US
What processes are included in a frontend development service?
A standard frontend development service encompasses several technical phases, beginning with UI/UX design translation into semantic HTML5 and accessible CSS3 structures.
Following this phase comes the development that uses reactive libraries and frameworks.
Notably, around 83% of JavaScript development uses React as the primary frontend framework, followed by Vue.js (77%) and Angular (43%).
Other critical, non-functional requirements are addressed through bundle size optimization, code splitting, and adherence to Core Web Vitals (LCP, FID/INP).
Standard packages also cover automated testing activities (unit, integration, E2E) and continuous integration/continuous deployment (CI/CD) pipelines for stable, cross-browser testing.
How do frontend developers in the US do project revisions?
When having pending revisions, frontend development companies in the US break down the work into short, iterative sprints to make sure all client feedback has been incorporated.
For bigger changes that weren't in the original plan, a formal change request is put into motion to determine the impact on time and cost.
When a change request is submitted, the revisions are formally documented.
Before any coding begins, a client sign-off is needed for the adjusted timeline and budget.
To track and implement approved revisions systematically, developers and designers use Git for version control Figma for visual approvals.
What kind of portfolio should a frontend development agency in the US have?
When looking into US-based frontend developers, look for portfolios that reflect how well the firm can convey client’s business ideas through creative engineering. Aesthetics will be more accented across their work, but you will also need proof of convertibility. Here’s what to look for:
- Quantifiable results: Look for improvements in Core Web Vitals, conversion rates, time-on-site, and user retention across every project.
- Good accessibility: Ask about their understanding of WCAG 2.2 standards and how much emphasis they put on inclusive design.
- Technical transparency: Browse sections that showcase clean, modular TypeScript code and integration with modern headless architectures.
- Simple motion: Prioritize subtle, purposeful micro-interactions that guide the user journey without adding unnecessary cognitive load.
- Simple design: Look for minimalistic designs that are easy on the eye, yet captivating in the simplicity they show.
How to find the best specialist on DesignRush that fits my budget?
We compiled a list of top-rated frontend development companies in the United States in different price ranges to help you in your search:
| High budget: $50,000+ |
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| Low budget: $25,000 to $50,000 |
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What questions should I ask a frontend developer in the US before signing a contract?
Before signing a contract with a frontend web development company in the US, ask the following questions to gain a better understanding of its capabilities and experience:
Relevant Background
- How many years of experience does your agency have in frontend development?
- Can you share some examples of your previous projects, especially those similar to my request?
- What languages and frameworks are you proficient in?
- What is the size of your development team?
Services and Processes
- How do you assess the quality and performance of your code?
- What tools or techniques do you use to test the accessibility of websites?
- Do you have experience with CI/CD pipelines?
- Do you offer maintenance and support?
- How do you measure and monitor the performance of websites?
- What tools or techniques do you use to gather user feedback?
Related to Your Project
- What potential challenges do you foresee in developing my project?
- Can you provide a breakdown of costs and fees?
- How often can I expect updates or feedback?
Sources
DesignRush sustains a directory of over 40,000 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.
Why companies trust DesignRush
Every agency is independently vetted before it can be listed or ranked
4.8
4.8Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.
5 FAQs About Frontend Development Companies in the United States
What does a frontend development company in the US do?
A US frontend developer is a type of software developer who programs the user-facing side of a digital product, website, or application, i.e., the side users see and interactwith. Their role is to create dynamic and easy-to-use user interface (UI) which the user would enjoy exploring.
In this role, their job is to determine the best layout for the website, more specifically to find the best place for the images, how to structure the navigation, where the search bar and drop-down lists go, and more. Much of their work revolves around making sure the overall appearance and layout of the site or app is intuitive for the user.
What services do frontend development companies in the United States provide?
As part of their specialty, frontend development companies in the US provide design and programming services aimed at enabling the best user experience. The main focus is to create stylish and easy-to-use sites that will enable smooth consumer experience, subsequently increasing time-on-site, engagement, and conversions.
Key services of a frontend development company in the United States encompass:
- User interface design
- Legacy frontend modernization
- User research
- Wireframing and prototyping
- Responsive web development
- Progressive web apps (PWAs)
- Single-page application (SPA) development
- Frontend performance optimization
- Accessibility testing
How much do these specialists charge for their services?
When looking to hire frontend development companies in the United States, or globally, businesses can choose to hire junior, intermediate or senior developers, which charge $10 to $30, $30 to $50, and $50 to $100 per hour, respectively.
Drawing on their experience, seniors are the most advanced talent you can go with, with their capabilities expanding to composing code, working with more advanced frameworks, creating websites with version control, responsive designs, and overall, better problem-solving skills.
Other than seniority, the geographic location of the developer affects the hourly rates as well. Countries like Canada, Australia, and the USA are known to hold the highest rates for the service.
What languages and frameworks do frontend development companies in the United States use?
Frontend developers in the United States mainly work with JavaScript, TypeScript, HTML5, and modern CSS (often with preprocessors like Sass or utility-first frameworks like Tailwind CSS).
The core application logic is predominantly built using reactive frameworks and libraries, with React dominating the ecosystem, followed by Next.js, Vue.js, jQuery, Bootstrap, AngularJS, and EmberJS.
For development and operations (DevOps), the standard pack includes version control systems like Git hosted on platforms like GitHub or GitLab.
For other miscellaneous activities, frontend teams also use static type checkers like TypeScript, code quality tools like ESLint, collaborative platforms like Figma for design handoff, and Jira for workflow tracking.
What is the difference between backend and frontend development?
The backend is the engine room of the website or the application that is responsible for the server-side logic. On the other, user-visible end is the frontend that is referred to as the skin of the site.
The backend serves as the warehouse and logistics hub, where raw data is organized in databases and retrieved via server-side code to populate those visual layouts with actual information.
On the other end, frontend developers in the United States convey design specifications into appealing user interfaces composed of different typography, color palettes, and layouts. They understand how a user’s eye moves across a page.
Latest Trends Related to Front End Web Development
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