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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Team I.T.
Web Development · Web Design · PHP
We are professionals in our fields each with over 10 years of experience. We bring in only the most talented and passionate experts in the West Michigan IT community.
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THiNC.technology
Mobile App Development · Web Development · Web Design
THiNC.technology is in The Foundry, which built sites such as The Wealth and Wisdom Institute.
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ClickFred
Web Development · Web Design · HTML5
Welcome to clickfred, a full-service digital marketing agency, offering web design, web development, marketing services and innovative business solutions to clients that provide…
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Codelab Studios
Web Development · Web Design · HTML5
Codelab Studios is a web development agency & design studio that specializes in websites ranging from landing pages to web applications.
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STRV
Mobile App Development · Web Development · iOS App
STRV is a Software Design & Engineering Company. Using the power of technology, we can unlock any business opportunity.
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Mercury Development
Mobile App Development · Web Development · iOS App
Mercury Development provides quality custom software development for a variety of platforms and industries.
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QBurst
Mobile App Development · Web Development · iOS App
QBurst is a full-service software solutions provider that works with clients to maximize the effectiveness of their business through the adoption of digital technology.
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Kwanso LLC
Mobile App Development · Web Development · iOS App
Kwanso is a Ruby on Rails development firm with well-funded clients based in Silicon Valley and other major technology hubs around the world.
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VOLANSYS Technologies
Mobile App Development · Web Development · iOS App
VOLANSYS is an ISO 9001:2015 Certified, 350+ professionals’ organization providing Product Engineering and Software Design, Development and Testing Services to worldwide customers…
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Sirin Software
Mobile App Development · Web Development · iOS App
Sirin Software is a Florida-based IT company with an R&D center in Kyiv, Ukraine.
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Waverley Software
Mobile App Development · Web Development · Web Design
Waverley is a software engineering firm providing the full cycle of software development services to companies globally.
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Dogtown Media
Mobile App Development · Web Development · iOS App
Dogtown Media turns app dreams into reality. As a disruptive tech company developing cutting-edge mobile solutions to solve everyday problems and simplify frustrating activities,…
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MobiDev
Mobile App Development · Web Development · iOS App
MobiDev is a software development company that creates complex business-driven solutions, with a focus on innovation and transparency of actions, guaranteed product delivery, and…
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StackCommerce
Mobile App Development · Web Development · Web Design
StackCommerce is the leading native commerce platform for online publishers, communities, and brands - bringing together people and products.
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echoinnovate IT
Mobile App Development · Web Development · iOS App
We are one of the popular mobile app development company in Minnesota in the USA.
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Pentoz Technology
Mobile App Development · Web Development · iOS App
Pentoz is a Leading business innovation firm for new business ideas focusing on Web, Mobile and Gaming Apps Development.
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Millennial Web Development
Web Development · Web Design · UI/UX Design
Based in Chicago, IL, Millennial Web Development is on the forward edge of web design & development, app development, and e-commerce.
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COLAB Multimedia LLC
Custom Software Development · Web Development · Web Design
COLAB is a digital agency that designs and builds websites, custom web applications, and experiences that solve real business problems.
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Chromaplex LLC
Mobile App Development · Web Development · iOS App
We are a web application and mobile app development agency. We’ve been doing this for more than 10 years, and each year we get better.
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Mokriya
Mobile App Development · Web Development · iOS App
Mokriya helps companies build technology that revolutionizes how customers use their products.
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Software Technology Group, Inc
Mobile App Development · Web Development · iOS App
The Software Technology Group (STG) staff of technical staff and engineers thrive on providing solutions to difficult engineering challenges.
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Iterative Consulting, LLC
Custom Software Development · Web Development · Web Design
Iterative Consulting is an Albuquerque-based small-business that offers a full spectrum of design and technology services, including full-stack web application development, UI / UX…
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TDCM
Web Development · Web Design · Software Development
As a constantly evolving software house, quality is our main trade.
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R/CS
Mobile App Development · Web Development · iOS App
We blend strategy, design, and engineering to bring you closer to your customers, employees, and partners. With us, it's all about you and your business.
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A Sponsored card above the JavaScript ranked list
Marked Sponsored, and it never changes the order
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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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Everything here links back to the same verified catalogue. Pick your next stop.

Top IT Service Providers for JavaScript in the USA

Team I.T.

THiNC.technology

ClickFred

Codelab Studios

STRV

Mercury Development

QBurst

Kwanso LLC

VOLANSYS Technologies

Sirin Software

Waverley Software

Dogtown Media

MobiDev

StackCommerce

echoinnovate IT

Pentoz Technology

Millennial Web Development

COLAB Multimedia LLC

Chromaplex LLC

Mokriya

Software Technology Group, Inc

Iterative Consulting, LLC

TDCM

R/CS