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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Nlyte Software
Web Development · Web Design · UI/UX Design
Nlyte Software is the world's leading software company focused on planning, managing and optimizing data centers.
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Rubrik, Inc.
Mobile App Development · Web Development · Web Design
Rubrik delivers instant application availability for recovery, search, cloud, and development.
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Lexmark
Web Development · Web Design · UI/UX Design
Lexmark creates innovative imaging solutions and technologies that help customers in more than 170 countries worldwide print, secure and manage information with ease, efficiency…
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Matrix IFS
Web Development · Web Design · UI/UX Design
Matrix International Financial Services is a leading global specialist, providing business and technology solutions specifically for the complex needs of the global Financial…
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Ivanti
Web Development · iOS App · Web Design
Ivanti unifies IT processes and security operations to better manage and secure the digital workplace.
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Avineon
Web Development · Web Design · IT Services
An SEI-CMMI Maturity Level 3 and ISO 9001:2015 registered firm founded in 1992, Avineon, Inc.
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Webfume Technologies LLC
Mobile App Development · Web Development · iOS App
We are experienced digital marketers and web and app developers, working as a robust team to help your business to scale new heights through our customized digital marketing and…
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The IT Nation
Web Development · Web Design · UI/UX Design
Born out of a single software solution designed to help MSPs gain control of their help desk and billing, ConnectWise has grown into a robust platform of software built for…
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GlobalServe, Inc
Web Development · Web Design · UI/UX Design
GlobalServe, a member of the Connection family of companies, streamlines global IT procurement and offers unrivaled value to customers around the world.
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AppViewX
Web Development · Web Design · UI/UX Design
AppViewX is the most advanced certificate management and key lifecycle automation platform.
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Xytech Systems
Web Development · Web Design · UI/UX Design
For 30 years, Xytech has simplified the complex operations of broadcasters and media facilities.
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Techknack It Solution LLC
Mobile App Development · Web Development · iOS App
We are one of the most trustworthy company in the line of digital marketing & IT support, based in Silver Spring, MD.
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Net Solutions
Mobile App Development · ERP Software Development · Web Development
Net Solutions is a digital experience agency that helps brands leverage design, engineering and analytics to build consumer-focused products and platforms.
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SourceTrace
Mobile App Development · Web Development · iOS App
SourceTrace A Global Leader in providing innovative mobile solutions for sustainable Agriculture and allied sectors such as Aquaculture, Plantation, & Forestry.
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NewVision Software
Mobile App Development · Web Development · iOS App
We are a community of problem solvers and opportunity catchers. We do that through our love for technology. And we do that in many ways small and big.
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Taazaa Inc.
Mobile App Development · Web Development · iOS App
Taazaa was founded on a belief that software should reduce human suffering and that great software should be more accessible to organizations that need it.
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OneTrust
Web Development · Web Design · UI/UX Design
OneTrust is the #1 most widely used privacy, security and third-party risk technology platform trusted by more than 4,000 companies to comply with the CCPA, GDPR, ISO27001 and…
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Smarsh
Web Development · Web Design · UI/UX Design
Smarsh helps organizations get ahead – and stay ahead – of the risk within their electronic communications.
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Topcoder
Web Development · Web Design · UI/UX Design
Topcoder is a global talent network and crowdsourcing platform with more than a million designers, developers, data scientists, and testers.
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Rimini Street
Web Development · iOS App · Web Design
Rimini Street, Inc. (Nasdaq: RMNI) is a global provider of enterprise software support products and services, and the leading third-party support provider for Oracle and SAP…
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The Trade Desk
Social Media Marketing · Web Development · Web Design
The Trade Desk is a technology company that empowers buyers of advertising around the world.
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CloudBlue
Web Development · iOS App · Web Design
CloudBlue, an independent Ingram Micro business, is dedicated to helping service providers of all kinds build, scale and monetize cloud and digital services in the as-a-service…
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NetBase
Artificial Intelligence - AI · Web Development · Web Design
NetBase is the next-generation artificial intelligence-powered social analytics platform that global companies use to run brands, build businesses, and connect with consumers every…
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RiskIQ
Web Development · iOS App · Web Design
RiskIQ is the leader in attack surface management, providing the most comprehensive discovery, intelligence, and mitigation of threats associated with an organization’s digital…
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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

Nlyte Software

Rubrik, Inc.

Lexmark

Matrix IFS

Ivanti

Avineon

Webfume Technologies LLC

The IT Nation

GlobalServe, Inc

AppViewX

Xytech Systems

Techknack It Solution LLC

Net Solutions

SourceTrace

NewVision Software

Taazaa Inc.

OneTrust

Smarsh

Topcoder

Rimini Street

The Trade Desk

CloudBlue

NetBase

RiskIQ