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

Kenna Security
Web Development · iOS App · Web Design
Kenna is a software-as-a-service Risk and Vulnerability Intelligence platform that accurately measures risk and prioritizes remediation efforts before an attacker can exploit an…
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PTC
Web Development · iOS App · Web Design
PTC (NASDAQ: PTC) unleashes industrial innovation with award-winning, market-proven solutions that enable companies to differentiate their products and services, improve…
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Workgrid Software
Web Development · iOS App · Web Design
Our intelligent digital workplace platform integrates across the common systems and tools found in the workplace to deliver personalized and contextual information to each employee…
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FrontM
Web Development · Web Design · UI/UX Design
FrontM is a UK headquartered technology startup with the team spread between London, SFO and Bangalore.
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AppDirect
Web Development · iOS App · Web Design
AppDirect provides the only end-to-end cloud commerce platform for succeeding in the digital economy.
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Slack
Mobile App Development · Web Development · iOS App
Slack is a layer of the business technology stack that brings together people, data, and applications – a single place where people can effectively work together, find important…
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Atwix
Web Development · iOS App · Web Design
Atwix is a forward-thinking company founded in 2010 that brings years of professional experience and provides web and e-commerce programming services, intranet system development…
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ClickSoftware
Web Development · Web Design · UI/UX Design
ClickSoftware. The undisputed global leader in cloud-based field service management solutions.
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The Wendt Agency
Social Media Marketing · Web Development · Web Design
A dedicated group of marketing professionals creating customized strategies that lead to our clients’ success.
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Hubstaff
Web Development · iOS App · Web Design
Hubstaff time tracking runs on your desktop or mobile device, making it easy to record time worked on clients, projects, and tasks.
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BrightTALK
Web Development · iOS App · Web Design
BrightTALK brings professionals and businesses together to learn and grow.
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ASG Technologies
Web Development · Web Design · UI/UX Design
ASG Technologies Group, Inc. provides global organizations with a modern approach to Digital Transformation to succeed in the Information Economy.
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VERISIGN
Web Development · iOS App · Web Design
Verisign, a global provider of domain name registry services and internet infrastructure, enables internet navigation for many of the world’s most recognized domain names.
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Neustar, Inc.
Web Development · iOS App · Web Design
Neustar is an information services and technology company and a leader in identity resolution providing the data and technology that enables trusted connections between companies…
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Masergy
Web Development · iOS App · Web Design
Masergy is the secure software-defined network and cloud platform for the digital enterprise.
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Dataworks
Web Development · iOS App · Web Design
Since 1986, DataWorks, Inc. has developed and supported back-office inventory control software systems for retail, hospitality and entertainment customers.
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Integrated Systems Management, Inc.
Mobile App Development · Web Development · iOS App
ISM, Inc. provides innovative IT solutions and services that help enterprise companies become more competitive.
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Galaxy Weblinks Inc.
Mobile App Development · Web Development · iOS App
Galaxy Weblinks is a new generation e-Business solutions providing enterprise. We develop robust web solutions that transform businesses into online management tools.
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Silver Peak
iOS App · UI/UX Design · E-Commerce Development
Silver Peak enables businesses of all sizes to realize a multiplier effect from ongoing cloud investments by delivering on a no-compromise WAN transformation strategy.
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Unicsoft
Artificial Intelligence - AI · Mobile App Development · Web Development
Our team comes to work every day to help businesses and people succeed and achieve sustainable growth through personal dedication, technical expertise, and commitment to…
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Langate Software
Mobile App Development · Web Development · iOS App
Langate Software is a software development company focused on building applications for the US healthcare and enterprise markets since 2001.
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ModLogix
Mobile App Development · Web Development · iOS App
Welcome to ModLogix! We move legacy software solutions to secure, stable and scalable platforms saving their business value.
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P2H
Mobile App Development · Web Development · iOS App
P2H is a digital company that makes the web a better place. Backed by a team of more than 400 professionals, P2H manages a number of well-known brands.
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Tallium Inc.
Artificial Intelligence - AI · Mobile App Development · Web Development
We are focused on crafting top-notch mobile and web applications for both startups and enterprises, assisting our awesome clients and partners all the way from concept and design…
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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

Kenna Security

PTC

Workgrid Software

FrontM

AppDirect

Slack

Atwix

ClickSoftware

The Wendt Agency

Hubstaff

BrightTALK

ASG Technologies

VERISIGN

Neustar, Inc.

Masergy

Dataworks

Integrated Systems Management, Inc.

Galaxy Weblinks Inc.

Silver Peak

Unicsoft

Langate Software

ModLogix

P2H

Tallium Inc.