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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TUV Rheinland OpenSky
Mobile App Development · Web Development · iOS App
TUV Rheinland OpenSky offers one of the most advanced and integrated portfolios of security solutions and services for connected devices, platforms and Internet of Things (IoT)…
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LSI Industries Inc.
Mobile App Development · Web Development · iOS App
We are a customer-centric company that positions itself as a value-added, trusted partner in developing superior image solutions through our world-class lighting, graphics, and…
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Security Innovation
Mobile App Development · Web Development · iOS App
Security Innovation is an authority on software security and helps organizations build and deploy more secure software.
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Techolution
Mobile App Development · Web Development · iOS App
We are on a mission to build tech solution to be a highly admired and globally recognized brand with a billion-dollar IPO in the next few years.
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Smartbridge
Mobile App Development · Web Development · iOS App
Smartbridge Focuses on Simplifying Business Transformation. WE Apply Thought Leadership and Innovation to Bring Our Customer’S Digital Agenda to Reality. Digital Agenda to Reality.
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Clarity Insights
Mobile App Development · Web Development · iOS App
Clarity Insights is a strategic partner to the nation's leading data-driven brands.
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Shinetech Software Inc.
Mobile App Development · Web Development · iOS App
Shinetech Software Inc. is an agile provider of application development and outsourcing, testing, systems integration, and solution delivery services from cost-competitive,…
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Mariner
Mobile App Development · Web Development · iOS App
Mariner provides industrial Internet of Things (IIoT) and analytic products and services for better decision-making to discrete and process manufacturers, worldwide.
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Fishermen Labs
Mobile App Development · Web Development · iOS App
Fishermen Labs is a Los Angeles based maker agency specializing in design and development for augmented reality, virtual reality, mobile app, web, and emerging technology products.
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Myriad Mobile
Mobile App Development · Web Development · iOS App
Myriad Mobile is an experienced team of mobile developers, engineers, designers, architects, strategists, and industry thought leaders brought together by our love of all things…
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Appetizer Mobile LLC
Mobile App Development · Web Development · iOS App
Appetizer Mobile is an award-winning digital agency offering mobile application development, consulting and marketing.
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The Creative Momentum
Custom Software Development · Search Engine Optimization · Web Development
Atlanta's Best Web Design Firm, The Creative Momentum, is an Atlanta-based, full-service digital marketing agency, specializing in custom web design and development for businesses.
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Cinchapi
Mobile App Development · Web Development · iOS App
Real-time insights with the power to act when it matters. Cinchapi is the code-free platform for data discovery, analytics, and automation powered by machine intelligence.
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Infostretch Corporation
Mobile App Development · Web Development · PHP
Infostretch leverages a proven combination of technology, processes, and expertise to help enterprises accelerate the execution of their digital strategy.
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Synapse
Mobile App Development · Web Development · Android
Synapse founded in 2010, brings transformative business ideas to life. With over 100+ customers spread across 22 countries.
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Metova
Mobile App Development · Web Development · iOS App
Founded in 2006, Metova set out to build innovative mobile applications while creating a great place for people to work.
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BigR.io
Mobile App Development · Web Development · iOS App
BigR.io is a technology consulting firm empowering data to drive innovation and advanced analytics.
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Cardus
Mobile App Development · Web Development · iOS App
CARDUSINC. Cardus, Inc was founded with the aim of offering a one-stop solution for all the IT development needs in modern industries.
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Smashing Boxes
Mobile App Development · Web Development · iOS App
Smashing Boxes lives and builds at the intersection of business value and technology.
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Vaizva Inc.
Mobile App Development · Web Development · iOS App
Vaizva provides intelligent software and hardware solutions while leveraging B2B platforms such as SAP HANA Cloud and IBM to improve how companies interact with their surroundings.
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Softensity
Mobile App Development · Web Development · iOS App
Softensity, Inc. is a U.S. based and owned corporation, born out of our consulting practice which started in 1997.
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QiMata Technologies LLC.
Mobile App Development · Web Development · iOS App
Qimata Technologies Is a Modern Consulting Firm Focused on Technology, ENGINEERING, AND INNOVATION.
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Silicus
Mobile App Development · Web Development · iOS App
Silicus is a cloud transformation services company, focused on helping enterprises drive cloud-enabled business innovation & modernization, deploy differentiation at scale, and…
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Quartus Technology Inc.
Mobile App Development · Web Development · iOS App
Quartus Technology is a Connecticut based Mobile Application Development Firm.
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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

TUV Rheinland OpenSky

LSI Industries Inc.

Security Innovation

Techolution

Smartbridge

Clarity Insights

Shinetech Software Inc.

Mariner

Fishermen Labs

Myriad Mobile

Appetizer Mobile LLC

The Creative Momentum

Cinchapi

Infostretch Corporation

Synapse

Metova

BigR.io

Cardus

Smashing Boxes

Vaizva Inc.

Softensity

QiMata Technologies LLC.

Silicus

Quartus Technology Inc.