Discover leading frontend development companies in the United States, renowned for their expertise in crafting captivating user interfaces that deliver conversion-optimized digital experiences.
Azumo is a SOC 2-certified web and software development company founded in 2016, delivering AI-augmented dedicated teams across React, Node.js, Python, and cloud stacks for clients including Meta, Twitter, Discovery Channel, and Omnicom. Well-suited for startups and enterprises needing nearshore development...
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Software Development Review from Michael S.
We selected Azumo to develop our software. We transitioned from another development company, so Azumo was initially responsible for migrating our existing code and environments. We are currently still working with Azumo as our nearshore software development team on adding new items to our software.
UI/UX Design Review from Anonymous
Azumo helped us migrate our existing UIs into a new framework, creating reusable components and the infrastructure needed for future development. The developer they assigned became a seamless part of our team, always punctual, responsive, and a great fit overall.
Software Development Review from Anonymous
Thanks to Azumo’s work, our product is now more scalable, optimized, and ready for a growing user base. Their team has managed the engagement effectively, keeping us updated and addressing any challenges along the way. We’ve appreciated their constant availability and proactive communication.
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...
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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.
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...
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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!
Sidebench is the top healthcare technology design and software engineering firm in the US. We combine strategy, design, technical architecture at every point of our process. We are known for delivering extraordinary business results...
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Translation Services Review from Abhit
They provide consulting services for a healthcare service provider. Sidebench contributed their expertise to a comprehensive mobile application to make sure it would pass Apple Store requirements. Thanks to Sidebench`s input, the application launched on the Apple Store after the first submission. Sidebench`s response times were quick, and they were willing to accommodate a unique working arrangement. The relationship that we had was probably unique; most companies would push to do the development themselves. We only needed Sidebench`s know-how, and they were willing to accommodate us.
Named Best AI Company and Software Development Company by The Netty Awards, Opinov8 is a global technology firm with development hubs across the United States, Europe, and Egypt...
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iSimplifyMe is an AI Infrastructure & Orchestration firm. We architect and operate production AI on private AWS...
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Dr. Millicent Rovelo's Review Sourced from Google
I could not be happier with this company! I have had two websites designed by them and the whole experience was amazing. Their technology and skills are top of the line and their customer service is excellent. Not to mention a good eye for aesthetics and skilled at SEO building. Highly recommend!!
Nikki Lazzara's Review Sourced from Google
Joe and James and AJ have done wonders for our business. Excellent design as well as support while we navigate our new website. Professional. I highly recommend them if you are looking to improve your digital marketing.
Anita Patel's Review Sourced from Google
I’ve worked with ISimplifyMe on a number of different projects over the years, and I think they are second to none. I am very particular about whom I choose to work with, and had interviewed a lot of companies before deciding to go with ISimplifyMe. I had contemplated going with a local company (Los Angeles), thinking it may be easier to communicate, but with ISimplifyMe the time difference was a nonissue. They replied faster and more thoroughly than local companies, and have been able to deliver time and time again. They have consistently produced high quality work, while being honest, reliable, and trustworthy.
Launch 3X faster and cheaper with our data-driven development approach. Valueans, your friend in the world of app development! We're all about custom application development and helping your business shine with the latest tech. Our team is great at making websites and apps that work well on phones, and we...
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Ayyan Ahmad's Review Sourced from Google
I'd say that if you're finding anyone that is super fast and you want the cheapest and the best app/website contact valueans
Hamza Zahoor's Review Sourced from Google
I recently had the pleasure of working with Valueans, and I can’t recommend them enough! Their team is incredibly professional, detail-oriented, and always goes above and beyond to deliver top-notch software solutions.From the initial consultation to project delivery, they kept me informed at every stage and ensured all my requirements were met. Their expertise in software development and IT services is truly impressive, and their dedication to client satisfaction sets them apart.If you’re looking for a reliable, innovative, and results-driven software company, Valueans is the one to trust. Exceptional service and outstanding results!
We're a software development agency that builds products that scale. Our engineering-first culture and product-minded approach have powered success stories like Calendlythe scheduling platform that revolutionized meetings for millions...
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Yurii's Review Sourced from Google
Don't waste your time on them, they are not really hiring, just pretending like they do. Not sure why, maybe to collect some data on potential candidates.
Przemyslaw Eliasz's Review Sourced from Google
Unprofessional approach to the recruitment process in finance. Watch out just not to waste your time.
We help you recruit, hire, manage and scale world-class offshore distributed Software Teams. We also design and develop full custom software projects...
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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.
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.
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:
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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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:
Rated 4.8 on Google and 4.7 on Trustpilot, DesignRush Agency Directory is a reliable resource for finding frontend development companies in the United States. 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.
Learn more about DesignRush Agency Ranking Methodology.
DesignRush sustains a directory of over 40,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:
Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.
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.
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:
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.
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.
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.
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