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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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Edgedna
Mobile App Development · Web Development · iOS App
Edge Cognitive Marketing is an award-winning Emerging Technology Agency that focuses on Digital Communication.
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ActiveLogic Labs
Mobile App Development · Web Development · Web Design
ActiveLogic Labs is a full-stack software development company headquartered in Kansas City and was founded in 2014 by Robert Kehoe.
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Trisoft
Mobile App Development · Custom Software Development · Web Development
TRISOFT is a full-service software development agency, currently oriented towards Symfony and Golang projects, offering professional services at Senior level experience.
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Seven Hills Technology
Mobile App Development · Web Development · iOS App
Simple and approachable software development for any size business.
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Quoin Inc.
Mobile App Development · Web Development · iOS App
Quoin is a boutique technology firm with a proven track record of building and improving systems.
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Yuthivara Analytics
Mobile App Development · Web Development · iOS App · Also in India
Yuthivara Analytics, founded in 2017, helping our customers to discover information in vast amounts of data, help them making smarter and quicker decisions to deliver even better…
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MoxeHub
Mobile App Development · Web Development · iOS App
MoxēHub is a Boston based team of App coding “Jedi’” supporting our clients need to build a better future for their business.
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astarios
Mobile App Development · Web Development · iOS App
astarios is a Swiss Technology Innovation Partner with development center in Kyiv, specializing in product engineering & software development services.
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dFusionTech, Inc.
Mobile App Development · Web Development · iOS App
dFusion Tech Inc. has dedicated years to developing efficient and flexible solutions designed to help our clients and partners worldwide.
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Pandera Labs
Mobile App Development · Web Development · iOS App
The invention is our joy and passion. We are a smarter tech agency.
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Adept Talent Acquisition
Mobile App Development · Web Development · iOS App
Adept Consultants USA based corporation headquartered in Irving, Texas, with national & international operations.
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zul Arc
Mobile App Development · Web Development · Web Design
Azul Arc has been at the forefront of creating technical solutions to solve business challenges for over 10 years.
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Sirius Computer Solutions
Mobile App Development · Web Development · iOS App
Backed by more than three decades of IT experience, Sirius is a nationally recognized solution provider with a certified team of sales and technical professionals who have the…
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Cantina
Mobile App Development · Web Development · iOS App
Cantina Consulting is a strategic design and development agency in Boston, MA that helps organizations harness the power of design and technology to create experiences that matter.
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LookFar Labs
Mobile App Development · Web Development · iOS App
LookFar is a software development studio that positions tech startups for success by prioritizing strategic planning and gathering user feedback as early and often as possible.
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Trio
Mobile App Development · Web Development · iOS App
Trio is an on-demand software engineering agency and we specialize in remote engineering team allocation.
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Solstice
Mobile App Development · Web Development · iOS App
Solstice, part of Kin + Carta, is a modern software engineering firm that helps Fortune 500 companies seize new opportunities through world-changing digital solutions.
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Talentica Software India Pvt. Ltd
Mobile App Development · Web Development · iOS App
Talentica Software is an innovative outsourced product development company that helps startups build their own products.
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ISsoft
Mobile App Development · Web Development · iOS App
Coherent Solutions solves business challenges for companies worldwide—large enterprises to startups—through custom software product development, deployment and consulting.
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Mtoag Technologies
Mobile App Development · Web Development · iOS App
Mtoag Technologies is a UKAS ISO 9001:2008 Certified customer-centric global software development company providing software development, web design/development, and IT outsourcing…
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Primtek LLC.
Mobile App Development · Web Development · iOS App
Here at Primtek, we not only develop custom precise software, but we also deliver quality.
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Forest Giant
Mobile App Development · Web Development · iOS App
Forest Giant is a creative development team that builds immersive experiences and connected environments.
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OpenArc, LLC.
Mobile App Development · Web Development · iOS App
OpenArc was founded in 2010, with a commitment to change the tech landscape by combining full-stack software development solutions with partnership approach-based staffing…
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Saturn Systems Software Engineering
Mobile App Development · Web Development · iOS App
Saturn Systems (www.saturnsys.com) is a Duluth, Minnesota based software engineering firm that combines highly skilled software engineers with a lower-cost model to deliver custom…
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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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Everything here links back to the same verified catalogue. Pick your next stop.

Top IT Service Providers for JavaScript in the USA

Edgedna

ActiveLogic Labs

Trisoft

Seven Hills Technology

Quoin Inc.

Yuthivara Analytics

MoxeHub

astarios

dFusionTech, Inc.

Pandera Labs

Adept Talent Acquisition

zul Arc

Sirius Computer Solutions

Cantina

LookFar Labs

Trio

Solstice

Talentica Software India Pvt. Ltd

ISsoft

Mtoag Technologies

Primtek LLC.

Forest Giant

OpenArc, LLC.

Saturn Systems Software Engineering