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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Impiger Technologies
Mobile App Development · Web Development · iOS App
Impiger Technologies is a leading Digital Transformation Solution Provider that empowers businesses to use various Digital Solutions through the implementation of Mobile, Cloud,…
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CirrusLabs
Mobile App Development · Web Development · iOS App
We build technology solutions that meet business needs. We’re specialists in the Cloud, Internet of Things, Analytics, and Automation.
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Hangar Technology
Mobile App Development · Web Development · iOS App
Reimagining the Way Industries, DRONES & Data Interact in the Physical World We’re building a platform that connects drones, people and data to make the places around us smarter,…
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Xnor AI
Mobile App Development · Web Development · iOS App
Xnor.ai brings highly efficient, super-powerful AI to edge devices such as cameras, cars, drones, wearables, and IoT devices.
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Structural
Mobile App Development · Web Development · iOS App
Structural's vision is to build a platform that puts people data to work in new and powerful ways for organizations worldwide.
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Fathym
Mobile App Development · Web Development · iOS App
Fathym is a low-code rapid innovation framework that empowers developers of all skill levels to rapidly and collaboratively build data applications that optimize businesses and…
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Zipit Wireless, Inc.
Mobile App Development · Web Development · iOS App
Internet of Things (IoT) \ M2M \ IoT Device Management \ IoT Connectivity \ IoT Managed Services \ IoT Billing & Subscription Management Zipit Wireless ("Zipit") is a provider of…
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SmartBIM
Mobile App Development · Web Development · iOS App
SmartBIM creates industry-leading software and services that empower building product manufacturers to rise to the challenges of digital transformation and best serve their…
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Sirqul
Mobile App Development · Web Development · PHP
Sirqul provides an IoT EaaS (Engagement as a Service) Platform with 72 APIs and over 30 customizable native application templates.
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Sensera
Mobile App Development · Web Development · PHP
The company designs and manufactures sub-components to systems thru technologies which connect the physical to the electrical world in sensors.
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AVDG
Mobile App Development · Web Development · iOS App
In the beginning, things were very simple. When AVDG opened our business in 1999 it was “entrepreneurship on a budget” and our goal was making sure that clients loved our service.
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Freckle IoT
Mobile App Development · Web Development · iOS App · Also in Canada
Freckle IoT is a global data company specializing in media measurement and identity.
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Bright Wolf, LLC
Mobile App Development · Web Development · iOS App
Bright Wolf is a trusted partner for industry leaders with a new vision for a connected world Our technology and experience help you deliver and measure tangible business value…
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Five Talent
Mobile App Development · Web Development · iOS App
Established in 2004, Five Talent is a collected team of experienced solution architects and developers, industry experts and business professionals that leverage shared talent and…
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AltexSoft
Mobile App Development · Custom Software Development · Web Development
Being a Technology & Solution Consulting company, we co-build technology products to help companies accelerate growth.
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Altaworx
Mobile App Development · Web Development · iOS App
Altaworx was founded in 2003 by Rickie Richey to address the emerging demand for Voice over Internet Protocol (VoIP) business telephone systems.
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Cityzenith, LLC
Mobile App Development · Web Development · iOS App
Cityzenith gives power to building industry professionals by aggregating all of their project data and software into a single tool: Smart World Pro.
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Zingbox Inc.
Mobile App Development · Web Development · iOS App
Zingbox detects and protects the connected equipment. It provides unparalleled visibility into the Internet of Things (IoT) infrastructure to reveal existing vulnerabilities and…
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Apptunix
Mobile App Development · Web Development · iOS App
Apptunix is a leading App & Web Solutions development agency, based out of Texas, US.
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SpinDance
Mobile App Development · Web Development · iOS App
SpinDance designs and develops fully integrated, custom software systems that bring products to life with elegant, compelling user experiences.
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ThingLogix Inc
Mobile App Development · Web Development · iOS App
ThingLogix is a provider of Internet of Things (IoT) solutions, solution components, and services.
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ThingTech
Mobile App Development · Web Development · iOS App
We are tested industry veterans and IoT obsessives on a mission to make life better for the people who operate the essential functions of our day-to-day world.
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Elemental Machines
Mobile App Development · Web Development · iOS App
From early research and discovery to manufacturing, everyone in biology and chemistry-based industries knows that the physical environment can affect the entire product lifecycle.
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Synapticats
Mobile App Development · Web Development · iOS App
Founded in 2008, Synapticats is a software engineering firm specializing in commercial mobile application development and smart device technologies.
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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

Impiger Technologies

CirrusLabs

Hangar Technology

Xnor AI

Structural

Fathym

Zipit Wireless, Inc.

SmartBIM

Sirqul

Sensera

AVDG

Freckle IoT

Bright Wolf, LLC

Five Talent

AltexSoft

Altaworx

Cityzenith, LLC

Zingbox Inc.

Apptunix

SpinDance

ThingLogix Inc

ThingTech

Elemental Machines

Synapticats