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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Afternow
Mobile App Development · Web Development · iOS App
AfterNow is an award-winning augmented reality studio with a diverse portfolio of products ranging from practical applications including Beem, Blocker & AR-Pres, to large-scale…
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Tech Suite Inc
Mobile App Development · Search Engine Optimization · Web Development
TechSuite is the software developer for promising startups, innovative enterprises, and ambitious SMBs with no time to waste.
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Stream 9 LLC
Mobile App Development · Search Engine Optimization · Web Development
Back in 2008, we began life as a somewhat ordinary web design company. Smartphones were in their infancy and apps didn't exist.
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Dynamisch LLC
Mobile App Development · Web Development · iOS App
Dynamisch is Information Technology Solutions and Service Company focused on providing end to end outsourced product engineering services.
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TecOrb Technologies Pvt. Ltd.
Mobile App Development · Web Development · Web Design
TecOrb is a very fast-growing company in India which is completely focused on mobility and web-based solutions on practically all domains.
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Lockstep Labs
Mobile App Development · Web Development · iOS App
Lockstep Labs delivers the highest quality web and mobile apps for a fraction of the usual cost.
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Red Axle
Mobile App Development · Web Development · iOS App
At Red Axle we build and deliver web and mobile software solutions for all industries. Still using Excel or Access to manage records? Get a Back Office Solution in Two Weeks.
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BayCreative
Search Engine Optimization · Web Development · Web Design
BayCreative is a full-service B2B marketing agency, with hundreds of satisfied customers, thousands of successful projects under its belt, and a superior reputation rarely equaled…
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The X Concept
Web Development · E-Commerce Development · Digital Marketing
The X Concept has been catering marketing needs to companies worldwide since 2001.
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My Favorite Web Designs
Custom Software Development · Search Engine Optimization · Social Media Marketing
My Favorite Web Designs is a full-service Web Design, Search Engine Optimization, and Marketing company in Arizona.
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Responsival
Mobile App Development · Web Development · iOS App
Responsival is a digital marketing agency that specializes in all aspects of business growth through online media.
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Anchour
Web Development · Web Design · UI/UX Design
We are a digitally-focused branding firm based in Maine. Tucked away from the noise and the hype, we focus on the fundamentals of building successful businesses: strategic…
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Ripe Media
Search Engine Optimization · Web Development · Web Design
RIPE (Ripe Media) is a mid-sized, full-service creative agency specializing in digital, interactive and web-based communications.
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Razorfrog Web Design
Web Design · CMS Development · HTML5
Based in downtown San Francisco, Razorfrog Web Design creates custom, elegant, accessible, and easy to manage WordPress websites and eCommerce solutions for individuals and…
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Onit Digital
Web Development · Web Design · UI/UX Design
We’re a team of artists, scientists, and digital strategists focused on web design in NYC.
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Imagine
Search Engine Optimization · Social Media Marketing · Web Development
Our Mission: to help our clients achieve their most ambitious marketing goals and challenge conventional norms while creating an environment that allows our team to maximize their…
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Spindle 360
Mobile App Development · Web Development · Web Design
We specialize in growing consumer product brands. Product Design. Creative Design. Marketing Strategy. Software Dev. Product Design.
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Moburst
Mobile App Development · Custom Software Development · Search Engine Optimization
Moburst is a full service, global \ mobile success company\ that helps companies grow their mobile business.
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Trademark Productions
Mobile App Development · Search Engine Optimization · Web Development
Based in Royal Oak, MI, Trademark Productions is a web design & development and digital marketing agency that has been rockin' the web since well-before the cool kids were doing…
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Denverdata Web
Custom Software Development · Search Engine Optimization · Social Media Marketing
Denverdata Web designs stunning custom websites for businesses in a variety of industries nationwide.
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Woodrow
Custom Software Development · Search Engine Optimization · Web Development
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Use All Five
Mobile App Development · Web Development · iOS App
Use All Five is a design and technology studio shaped by the West coast way. We help clients design and develop visual identities and experiences across spaces and screens.
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Fresh Tilled Soil
Mobile App Development · Web Development · iOS App
Our mission is to enable people to accomplish more in less time with powerful digital products. This means understanding human behavior as deeply as technology.
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Lucidworks
Custom Software Development · Web Development · Web Design
Lucidworks is shaping the future of digital experiences, AI, and machine learning by reimagining the power and value of cognitive search to create all-new, human-centered…
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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

Afternow

Tech Suite Inc

Stream 9 LLC

Dynamisch LLC

TecOrb Technologies Pvt. Ltd.

Lockstep Labs

Red Axle

BayCreative

The X Concept

My Favorite Web Designs

Responsival

Anchour

Ripe Media

Razorfrog Web Design

Onit Digital

Imagine

Spindle 360

Moburst

Trademark Productions

Denverdata Web

Woodrow

Use All Five

Fresh Tilled Soil

Lucidworks