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

Filter by fitbudget, engagement, size and more

VisionSnap, Inc.
Mobile App Development · Web Development · Web Design
VisionSnap, Inc. was established in 1999 on the basis of developing exceptionally designed, creative web sites for individuals and corporations.
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Toptal
Custom Software Development · Web Development · Web Design
Toptal is an elite network of the world’s top talent in business, design, and technology that enables companies to scale their teams, on demand.
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Tragic Media
Custom Software Development · Web Development · UI/UX Design · Also in California
We are a talented and seasoned team, focused on expertly crafted digital experiences built on enterprise, open-source technologies.
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Sinew Solutions
E-Commerce Development · Android · eCommerce
Sinew Solutions is your technology partner. We deliver effective e-commerce, mobile, and web application solutions for Apple, Android, Google, Unix/Linux, and Windows, including…
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10up
Web Development · Web Design · PHP
We make finely crafted websites and tools for content creators, doing our part to create a better web for clients like Microsoft, Time, ESPN, and Adobe.
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Freelock Computing
Mobile App Development · Custom Software Development · Web Development
Security, Insight, Results for your Website. We are striving to create a company that places people first.
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POP Interactive
Web Development · Web Design · PHP
POP Interactive provides large and small companies site design, development and marketing services. Our expertise includes creating websites, mobile and responsive sites.
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SolutionStream
Mobile App Development · Web Development · iOS App
At SolutionStream, we are passionate about building world-class digital products that drive business results.
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new target, inc.
Mobile App Development · Search Engine Optimization · Web Development
We are a dynamic web strategy, design, development, hosting, and marketing firm comprised of experienced digital professionals, each dedicated to providing the highest quality…
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TOPS Infosolutions Pvt. Ltd.
Search Engine Optimization · Web Development · iOS App
TOPS Infosolutions, an IT Services & Enterprise Solutions Provider, combines Tech Expertise and Business Intelligence to enable Organizations to make most of their business…
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Modern Interface
Mobile App Development · Web Development · Web Design
Modern Interface offers full-service web design and development, geared to the small business owner.
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Spin Group
Mobile App Development · Web Development · Web Design
Spin Group is a Web Development firm located in Milwaukee, Wisconsin.
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Prodjex
Web Development · Web Design · PHP
Prodjex is a Kansas City web development company that provides end-to-end web development services for all things web-related.
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Wind Companion Web Design
Web Development · Web Design · CMS Development
Website design is what visitors see and how they interact with your web content.
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ZeroDegrees Inc
Mobile App Development · Web Development · Web Design
ZeroDegrees is an agency specializing in user experience strategy, design and development.
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doyenhub
Web Development · Web Design · E-Commerce Development
DoyenHub software solution Pvt Ltd - Market Leader in Open Source Solutions Welcome to DoyenHub Software Solution Pvt Ltd.
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Element 31 LLC
Web Development · Web Design · UI/UX Design · Also in Georgia
Founded in 2010, Element 31 is a web development firm based in Atlanta, GA that specializes in the customization of the Drupal open-source content management framework.
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Watermelon Web Works
Web Development · Web Design · CMS Development
Watermelon Web Works - A Portland Web Design, Web Development, and Digital Marketing Agency. Organic internet solutions to grow your business. Offices in Portland & Denver.
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Valuebound
Web Development · E-Commerce Development · PHP · Also in New Jersey
Valuebound is a professionally managed, rapidly growing, CMS development company actively involved in developing content management solutions for Media, Publishing, and High-Tech…
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Xumulus, Inc.
Mobile App Development · Web Development · iOS App
We’ve mastered more than a single software package. Engaging users through digital and e-commerce experiences takes the knowledge that spans operations, integrations, DevOps, and…
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Flawless
Web Development · Web Design · PHP
We are privileged to have designed over 300 websites and we have helped drive over 12 million visitors to our client’s websites with our marketing strategies.
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Surge Software
Mobile App Development · ERP Software Development · Web Development
Surge is an onshore provider of custom web, cloud, mobile, digital, and desktop software development and consulting services to clients in every industry, from hot startups to…
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Make Directory Developers, LLC
Custom Software Development · Web Development · Web 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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ReachFarther
Web Development · Web Design · UI/UX Design
ReachFarther is a full-service interactive agency passionately helping our customers navigate today’s complex digital world.
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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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More on TrustList

Everything here links back to the same verified catalogue. Pick your next stop.

Top IT Service Providers for JavaScript in the USA

VisionSnap, Inc.

Toptal

Tragic Media

Sinew Solutions

10up

Freelock Computing

POP Interactive

SolutionStream

new target, inc.

TOPS Infosolutions Pvt. Ltd.

Modern Interface

Spin Group

Prodjex

Wind Companion Web Design

ZeroDegrees Inc

doyenhub

Element 31 LLC

Watermelon Web Works

Valuebound

Xumulus, Inc.

Flawless

Surge Software

Make Directory Developers, LLC

ReachFarther