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

PromptWorks
Mobile App Development · Web Development · iOS App
PromptWorks is a premier software consulting shop with offices in Philadelphia, NYC, and Austin. We specialize in Ruby, Python, JavaScript, and related technologies.
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Syroup
Mobile App Development · Search Engine Optimization · Web Development
We work with clients to deliver concise, clear and directed marketing services that stick to consumers and help transform them into proactive and repeat customers.
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Big Nerd Ranch
Mobile App Development · Web Development · iOS App
Established in 2001, Big Nerd Ranch specializes in client app development and expert instruction from the brightest developers and designers in the industry.
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Weidenhammer
Mobile App Development · Search Engine Optimization · Web Development
When Weidenhammer Systems Corporation first opened for business on February 15, 1978, we had a simple vision: assist organizations with the cost-effective implementation of their…
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Metamins
Mobile App Development · Custom Software Development · Web Development
Metamins provides full-cycle software engineering services to businesses in Europe and North America.
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XTAPPS Software Solutions
Mobile App Development · Web Development · iOS App
XTAPPS is a passionate team of Web designers & developers, whose technical experience span over decades.
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Ora Infotech
Mobile App Development · Web Development · iOS App
Conceived in 2013, Ora Infotech, an Ahmedabad based IT company, unlike every other typical IT hubs having a team of serious-looking tech experts, is in fact, more of a fun, young…
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alligatortek
Mobile App Development · Web Development · iOS App
Alligatortek began partnering with clients 25 years ago to develop game-changing applications for its clients.
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Elinext
Mobile App Development · Web Development · iOS App
Elinext is an alliance of custom software development companies with offices in the USA, the United Kingdom, France, Germany, Switzerland and main delivery centers in Belarus and…
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Yeti LLC
Mobile App Development · Web Development · iOS App
Yeti partners with industry-leading companies to research, design and develop innovative digital products.
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Stride Consulting
Mobile App Development · Web Development · HTML5
Stride Consulting is NYC’s go-to Agile software development company. Our mission: Teach the World to Stride!
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Techtonic, Inc
Mobile App Development · Web Development · iOS App
Great software development isn’t just rooted in the code; it’s reflected in the people you’re working with to accomplish your goals. At Techtonic we embody a better way.
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Wegile
Mobile App Development · Search Engine Optimization · Web Development
At Wegile, we develop innovative mobile-based products at an incredible pace for our clients worldwide.
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Appscrip
Mobile App Development · Web Development · iOS App
Mobile technology is disrupting industry value chains across verticals.
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Saburly
Mobile App Development · Search Engine Optimization · Web Development
We are a team of creative, open-minded, skilled and fun-loving engineers that ship success every day. Here are the 3 things we can do for you.
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Remedy Point Solutions
Mobile App Development · Web Development · iOS App
Remedy Point Solutions is a team of startup founders, executives, and contributors dedicated to helping tech companies grow.
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SnapTortoise LLC
Web Development · Web Design · Software Development
SnapTortoise develops beautiful, performant websites for startups, nonprofits, and businesses all over the world.
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Lithios
Mobile App Development · Web Development · iOS App
Founded by a group of passionate NCSU entrepreneurs, Lithios began in 2014 with a mission to create mobile experiences and products that make a strong impact in our community.
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ServUsTECH
Mobile App Development · Web Development · iOS App
We are an innovative software company from Romania, specialized in Custom Mobile and Web Software, backed by Java Cloud Technologies..
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JAFTON
Mobile App Development · Web Development · iOS App
We are the product building team behind many successful acquisitions lead by a serial IT entrepreneur Bobir Akilkhanov who knows how to create the most effective digital solutions…
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KoderLabs LLC
Mobile App Development · Search Engine Optimization · Web Development
We have worked with large and small sizes companies and have successfully launched apps, web apps & brands with a distinctive identity that are featured in top-rated products in…
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Hundredfold Studios
Search Engine Optimization · Social Media Marketing · Web Development
HundredFold is an award-winning boutique branding agency that builds visual brands through immersive websites and beautiful print.
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OCS Innovation Company
Mobile App Development · Web Development · iOS App
OSC Innovation Company (OCSICO) is a mature outsourcing provider headquartered in California, USA.
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Softjourn, Inc
Mobile App Development · Web Development · .NET
Softjourn, Inc. is a technology services provider headquartered in Silicon Valley, with R&D centers in Ukraine and Poland.
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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

PromptWorks

Syroup

Big Nerd Ranch

Weidenhammer

Metamins

XTAPPS Software Solutions

Ora Infotech

alligatortek

Elinext

Yeti LLC

Stride Consulting

Techtonic, Inc

Wegile

Appscrip

Saburly

Remedy Point Solutions

SnapTortoise LLC

Lithios

ServUsTECH

JAFTON

KoderLabs LLC

Hundredfold Studios

OCS Innovation Company

Softjourn, Inc