Companies · category

Top IT Service Providers for JavaScript in the USA

762 IT service providers ranked by rating, review volume and listing quality.

JavaScript spans more ground than any other language on this list. It runs in every browser, on servers through Node, and inside mobile and desktop applications, so a firm listing it may be doing front-end interface work, back-end services, or both.

The useful clarification is which part of the stack, and with what. Front-end work is dominated by a handful of frameworks and the choice affects hiring for years afterwards. Back-end JavaScript competes with other server languages and is chosen for good reasons and bad ones. Ask why they would pick it for your project specifically — a clear answer indicates a team choosing tools, and a vague one indicates a team using whatever they already know.

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Between them, the 600 best-ranked of these 762 IT service providers cover web development (578), iOS app (402), android (387) and mobile app development (381). They also list work in Washington, New York, California and Oregon. 598 of them have written a profile you can read before you get in touch.

We list more than 750 IT service providers in the USA listed for JavaScript development. The order comes from what each firm publishes and what has been verified about it, never from payment — at the top right now: Untold Studio, Tecziq Solutions and Snaps Technology.

Before you shortlist, check

Which frameworks they use, and why for your project
Automated tests and code review as standard
Performance and accessibility targets agreed up front
How dependencies are kept up to date after launch

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Untold Studio
Mobile App Development · Web Development · iOS App · Also in Oregon
Untold is a world-class software engineering consultancy based out of Portland Oregon.
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Tecziq Solutions
Mobile App Development · Custom Software Development · Web Development · Also in Delhi NCR
Tecziq Solutions was established to become a pioneer as technology partners in the development and implementation of automated solutions leading to sustainable growth for…
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Snaps Technology
Custom Software Development · Web Design · E-Commerce Development · Also in Washington
Snaps Technologies Limited is an emerging software technology service company. We started operations in 2010.
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Abasys Technologies Inc
Custom Software Development · Web Development · E-Commerce Development · Also in Washington
Abasys Technologies Inc (DBA “ ATI ”), is a spin-off from World Wide Technologies, Inc.
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ServerLogic
Custom Software Development · Web Development · IT Outsourcing · Also in Oregon
Since 1992, ServerLogic’s professional IT services have helped our clients leverage the power of Internet technology across numerous industries, including transportation &…
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Opichi
Web Development · React Native · E-Commerce Development · Also in New York
We'll tackle just about any WordPress, PHP, or Shopify tasks that you have. Big or small.
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MANGOSOFT
Web Development · Web Design · UI/UX Design
Do you have an amazing idea, and a desire to bring it to life — yet having trouble making it come true?
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ADK Group
Mobile App Development · Web Development · .NET
DK Group is a Boston-based team of entrepreneurs and programmers building software, mobile apps, websites, and other cool technologies.
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Plethora Design
Web Development · Web Design · .NET · Also in Virginia
Plethora Design, established in 2003, is a web design and development consultancy.
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Red8 Interactive
Mobile App Development · Web Development · eCommerce
Red8 Interactive is a digital development studio designed from the ground up to support advertising and digital agencies, and web design firms, with high-quality digital…
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P2H Inc.
Web Development · Web Design · E-Commerce Development
Founded in 2005, PSD2HTML is the world's largest professional PSD to HTML coding company.
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Fahrenheit Marketing
Mobile App Development · Web Development · Web Design
Fahrenheit Marketing is a company focusing on business growth through effective design, development, and marketing of award-winning web properties.
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Wonder Giant
Web Development · Web Design · AngularJS
We are an agile collective of creatives seeking to satisfy our Wonder Giant. Wonder Giant is that feeling you get when you have to know, or create something.
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Cantilever, Inc
Web Development · Web Design · UI/UX Design
The cantilever is a boutique remote digital agency that creates quality websites and web applications. We design and build websites with care, and it shows.
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Spry Digital
Web Development · eCommerce · Laravel
Spry Digital understands your public-facing website is only the tip of the iceberg.
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Make Directory Developers
Mobile App Development · Web Development · UI/UX Design
Make Directory Developers, LLC is a complete web and application development company, offering experience in Javascript, PHP, CSS, and HTML in a client-centric development process.
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Fingent Corporation
Custom Software Development · Web Development · Web Design
We are a New York based custom software development company firm providing: End-to-end Technology Services, Advisory Services, Enterprise Consulting, Application Development &…
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Planeteria
Web Development · E-Commerce Development · PHP · Also in California
Planeteria is an established website design and development company in the San Francisco Bay Area. Planeteria has offices in Santa Rosa (CA) Portland (OR) and Denver (CO).
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CTI Digital
Mobile App Development · Web Development · iOS App
We are an award-winning full-service digital agency, specializing in open source web development.
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Quartsoft
Mobile App Development · Web Development · iOS App
Quartsoft is an international web development company specialized in creating eCommerce, SaaS, PaaS, real estate, fin-tech, tourism, rental and social network systems.
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Planeteria Media
Web Development · Web Design · PHP
Planeteria is a member of pb9 (Planeteria Brewhouse 9) group with offices in Santa Rosa (CA), Portland (OR) and Denver (CO).
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Skyhound Internet
Web Development · Web Design · PHP
Experts in website design, Skyhound Internet provided website design, web application programming, and video production services.
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Made Tech
Mobile App Development · Web Development · iOS App
Metajive is a digital design and technology partner committed to ‘Creating Great Experiences’ with the best brands on the planet.
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TXCAPstudio
Web Development · Web Design · UI/UX Design
As a team of Local Web Designers & WordPress Developers in Austin, TX our passion is to create user-friendly websites that work.
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How is this ranking worked out?

The order comes from what each firm publishes and what has been verified about it, and never from payment:

Profile completeness: the details a buyer needs to judge a firm — what it does, who it serves, how it prices, who it has worked for
Earned trust: verification, awards and the other checks a firm has actually passed
Client reviews, where they exist: the rating is smoothed, so one five-star review cannot outrank a firm with a hundred good ones, and volume counts with diminishing returns

Client reviews are still rare across this catalogue, so on most lists today the order is set by the first two. A firm near the top is the best-documented and best-verified one we hold, which is not the same claim as the best one to hire. Use the list to build a shortlist, then check the firms yourself.

Sponsored listings are labelled and shown apart from this list. How rankings work

Only firms whose profile names the USA are counted here, so a firm that lists a town but no country is not yet included.

Where else can I look?

The same list elsewhere: UK (478) · India (392) · Germany (214) · Ukraine (145).

Other specialisms in the USA: e-commerce (1,539) · Android app development (1,530) · iOS app development (1,452) · UI/UX design (1,355) · PHP development (946).

Every IT service provider in the USA: the full list.

Every category in the USA: the USA country page.

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Top IT Service Providers for JavaScript in the USA

Untold Studio

Tecziq Solutions

Snaps Technology

Abasys Technologies Inc

ServerLogic

Opichi

MANGOSOFT

ADK Group

Plethora Design

Red8 Interactive

P2H Inc.

Fahrenheit Marketing

Wonder Giant

Cantilever, Inc

Spry Digital

Make Directory Developers

Fingent Corporation

Planeteria

CTI Digital

Quartsoft

Planeteria Media

Skyhound Internet

Made Tech

TXCAPstudio