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

Banyan Hills Technologies
Mobile App Development · Web Development · iOS App
We formed in 2013 to help customers solve the complexity surrounding the Internet of Things (IoT).
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Axsys Automation
Mobile App Development · Web Development · iOS App
Axsys Automation provides engineering, product development services, and OEM manufacturing by applying technology solutions which enable device and network connectivity,…
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Adexin
Mobile App Development · iOS App · E-Commerce Development
Founded in 2012 Adexin provides full-cycle software web development with the focus on C# and Javascript.
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Thrust Vector, LLC
Mobile App Development · Web Development · iOS App
Thrust Vector was founded for the sole purpose of creating experiences that soar. Our aim is to create applications that are immersive, engaging … and incredibly fun.
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Simply Technologies
Software Development · Mobile Platforms · Quality Assurance
Simply Technologies is a premium level software development and innovation company delivering on-demand end-to-end software development services and market-ready solutions.
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Low Voltex Inc.
Mobile App Development · Web Development · iOS App
LowVoltex Inc. has been proudly serving the Chicagoland area since 2004. We are specialized in the design and installation of complete low voltage systems.
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SmartLogic
Mobile App Development · Custom Software Development · Web Development
We build custom web and mobile applications. We’ve been in business since 2005, building web and mobile applications for clients ranging from funded startups like OrderUp and…
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SiteWhere
Mobile App Development · Web Development · iOS App
SiteWhere is developed by SiteWhere, LLC, a company based in Atlanta, GA.
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Cloud Technology Partners
Mobile App Development · Web Development · iOS App
We started CTP because we know moving to cloud is the single most significant technology shift your company will face over the next decade.
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San Juan Software
Mobile App Development · Web Development · iOS App
San Juan Software provides application development and integration services for the device side of the Internet of Things (IoT) including Bluetooth Low Energy (BLE) ZigBee and…
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Senslytics Corporation
Mobile App Development · Web Development · iOS App
Founded in 2015, Senslytics is carving a new space of "Lead Time Forewarning", giving managers and engineers more reaction time to optimize operations or curb emergencies.
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Fractal Hardware
Mobile App Development · Web Development · iOS App
Fractal uses mechanical, electrical, and industrial design to prototype and engineer manufactured products for the internet of things, medical devices, and more.
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Indiana IoT Lab
Mobile App Development · Web Development · iOS App
In February 2017, the city of Fishers, already an emerging tech-hub, announced the development of one of the nation’s first Internet of Things lab to bring together various players…
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Sprinkl
Mobile App Development · Web Development · iOS App
Sprinkl is a startup company based in Texas that develops innovative connected products focused on the conservation of water in both residential and commercial applications.
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Cox2M
Mobile App Development · Web Development · iOS App
Cox2M is a new Internet of Things (IoT) business line within Cox Communications that provides complete asset tracking and monitoring solutions.
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Atra Blockchain Services
Mobile App Development · Web Development · iOS App
Atra Blockchain Services. We connect you to the blockchain. Atra provides a blockchain services platform that enables businesses, individual developers, and entrepreneurs to…
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RTV Engineering
Mobile App Development · Web Development · iOS App
At RTV Engineering, we've implemented uncompromising integrity, ethics, and excellence into the core of our company.
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Entrigna
Mobile App Development · Web Development · iOS App
Entrigna’s Real-Time Expert System (RTES) is a platform for churning live-streams of data to extract real-time insights for actionable business decisions!!
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Scante
Mobile App Development · Web Development · iOS App
Scante systems help manufacturers and suppliers provide IoT driven apps to their customers.
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PDT
Mobile App Development · Web Development · iOS App
Since its founding in 1995, PDT, an Astronics Company, has been committed to providing truly comprehensive product development services via a proven, process-driven approach.
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Lochbridge
Mobile App Development · Web Development · iOS App
DMI is purpose-built to reinvent business for a connected world.
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Enterprise IoT
Mobile App Development · Web Development · iOS App
At Enterprise IoT, we’re building the Internet of Humans & Machines using Digital Threads to connect a distributed Edge Computing system with Digital Twins to deliver value to…
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Turnkey-Digital
Mobile App Development · Web Development · iOS App
Turnkey is a strategic solution consulting and implementation provider which brings to bear strong subject matter expertise in business and technology.
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IoT Technology Solutions
Mobile App Development · Web Development · iOS App
We share a clear understanding that it is the goals of a business and the needs of their customers that drive the technology solutions we offer… and not vice versa!
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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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Top IT Service Providers for JavaScript in the USA

Banyan Hills Technologies

Axsys Automation

Adexin

Thrust Vector, LLC

Simply Technologies

Low Voltex Inc.

SmartLogic

SiteWhere

Cloud Technology Partners

San Juan Software

Senslytics Corporation

Fractal Hardware

Indiana IoT Lab

Sprinkl

Cox2M

Atra Blockchain Services

RTV Engineering

Entrigna

Scante

PDT

Lochbridge

Enterprise IoT

Turnkey-Digital

IoT Technology Solutions