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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Codabrasoft LLC
Mobile App Development · Web Development · iOS App
Having started our work in 2014, we found our way working as a vendor (sub-vendor) for a number of companies and startups from the USA, Canada, and Western Europe.
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Treeline
Mobile App Development · Web Development · iOS App
Treeline has been helping everyone from startups to enterprise companies develop game-changing products for more than 10 years now.
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Barefoot Solutions
Mobile App Development · Web Development · iOS App
Founded in 2005, over the last decade Barefoot has grown into a full-service interactive agency that creates and manages first-class digital products across a wide range of…
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Zynovo Solutions Inc.
Search Engine Optimization · Social Media Marketing · Web Development
Zynovo is a full-service digital commerce agency, focused on end-to-end implementations of the most flexible enterprise-class commerce platform.
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Briteskies
Web Development · E-Commerce Development · Software Development
Since 2000, Briteskies has helped clients seamlessly develop, deploy, upgrade, and integrate their eCommerce and Enterprise Software systems.
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Prostir
Mobile App Development · Web Development · iOS App · Also in Ukraine
Prostir. connects companies looking for software development outsourcing services with the most talented and verified firms.
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Miracle Group
Mobile App Development · Web Development · iOS App
Miracle Group is a global leader in providing application outsourcing, systems integration, and solution delivery services.
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Aten Design Group
Mobile App Development · Custom Software Development · Web Development
Aten Design Group is a team of 23 digital strategists, architects, designers and developers serving a broad range of clients in education, non-profit, public sector and other…
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Vectorform
Mobile App Development · Web Development · iOS App
Vectorform is a platform designed to help organizations invent digital products and customer experiences.
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Dreams Animation
Web Development · Web Design · UI/UX Design
Dreams Animation is a Full-Service Web Development, E-commerce Website Design and Online Marketing Company in New York City.
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One Team US
Mobile App Development · Web Development · iOS App
One Team US, LLC creates a platform that keeps your business active and effective to both clients and administration.
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Lullabot
Web Development · Web Design · UI/UX Design
Lullabot is a strategy, design, and Drupal development company that has created some of the most high-profile and award-winning websites for large-scale publishers.
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MultiTech
Mobile App Development · Web Development · iOS App
MultiTech designs develop and manufacture communications equipment for the Industrial Internet of Things – connecting physical assets to business processes to deliver enhanced…
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Uncorked Studios
Mobile App Development · Web Development · iOS App
We're thinkers, builders, writers, developers, and designers who evolve ideas into reality. We group our capabilities into three main functions:
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Digi International
Mobile App Development · Web Development · iOS App
By the time you finish reading this sentence, more than 23 billion connected IoT devices around the world will transmit over 430 trillion bytes of data communications across…
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LogicPD
Mobile App Development · Web Development · iOS App
Your premier partner for connected device design, development, manufacturing & support.
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Venice Consulting Group
Mobile App Development · Web Development · iOS App
The Venice Consulting Group is an internet-web-mobile development company focused on UX - the user experience.
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Mobiquity Inc.
Mobile App Development · Web Development · iOS App
Mobiquity is a digital consultancy that partners with the world's leading brands to design and deliver compelling digital products and services for their customers.
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R2B Web Software
Mobile App Development · Web Development · iOS App
We are a full-lifecycle software development company that helps clients take advantage of new business opportunities by creating smart, one-of-a-kind technology systems.
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Particle
Mobile App Development · Web Development · iOS App
Particle brings the physical world online to solve problems before they happen. We believe in the opportunity of the Internet of Things.
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Sight Machine
Mobile App Development · Web Development · HTML5
Sight Machine is used by Global 500 companies to make better, faster decisions about their manufacturing operations.
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Sensory, Inc.
Mobile App Development · Web Development · iOS App
Sensory, Inc. is a profitable, venture-backed, privately held software company focused on improving the user experience through embedded machine learning technologies such as…
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Bastille
Mobile App Development · Web Development · PHP
Bastille is the first company to enable enterprise security teams to assess and mitigate the risk associated with the growing Internet of Radios.
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Digital Lumens
Mobile App Development · Web Development · iOS App
As an OSRAM business, Digital Lumens is driving the industrial and commercial smart building revolution through superior software, products, and system integration.
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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

Codabrasoft LLC

Treeline

Barefoot Solutions

Zynovo Solutions Inc.

Briteskies

Prostir

Miracle Group

Aten Design Group

Vectorform

Dreams Animation

One Team US

Lullabot

MultiTech

Uncorked Studios

Digi International

LogicPD

Venice Consulting Group

Mobiquity Inc.

R2B Web Software

Particle

Sight Machine

Sensory, Inc.

Bastille

Digital Lumens