Top 100 JavaScript Developers
May 2022Looking for a top JavaScript development company?
Developers use JavaScript to make web pages responsive and interactive. JavaScript is a text-based programming language used in web development, typically alongside CSS and HTML. Some common use cases for JavaScript are menus, animations, or interactive maps.
That's why we've created this list of the best JavaScript developers for you to review. Read through company descriptions, former clients, and notable projects to find the best fit for your business. (And, if you want personalized recommendations, tell us about your project.)
List of the Best JavaScript Development Companies
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1
- $25,000+
- 1,000 - 9,999 employees
- Plano, TX
Experion Technologies develops software solutions, mobile apps, cloud services, and IoT platforms. Established in 2006 and based in Addison, TX, their 350+ experts have created digital solutions for over 110 clients in the sectors of finance, retail, supply chain, and health.
Clients
- Duracell
- Speedo
- TopGolf
- Bacardi
Industries
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Experion Technologies developed a skincare company’s custom software. They had an intensive discovery phase before rebuilding a Windows CE tool for a modern platform.
"Experion’s work was on time and within budget — they delivered what they promised."
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2
- $10,000+
- 50 - 249 employees
- Odesa, Ukraine
DIGIS is a software development company based in Larnaka, Cyprus. They were founded in 2009 and have a team of 77 employees. They specialize in custom software, web, and mobile app development for midmarket and small business clients in the business services, financial services, and media industries.
Clients
- Huma
- BlaBlaCar
- PWC
- EDP
Industries
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Digis is providing a frontend developer to augment an automotive software company’s development team. Their resource is using JavaScript to add new features to the client’s platform.
"We are in touch with their developer almost on a daily basis so it feels as if he is a part of our team."
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3
- $25,000+
- 50 - 249 employees
- Warszawa, Poland
S-PRO is a mobile app and blockchain development company based in Kiev, Ukraine. Founded in 2014, S-PRO's team of around 100 employees specializes in mobile app development, blockchain, and UI/UX design. S-PRO primarily works with small and midmarket clients.
Clients
- Custom software for a Wall Street brokerage company (a real-time risk management platform that collects market information instantly and synchronizes it with information about the company’s positions)
- Chemistry database software for global scientific (our client Zymergen raised $600 million in investments; enables faster and cleaner searchability of millions of data points)
- Data analytics platform with actionable insights into the UK alternative energy industry (Modo Energy has raised over £1 million in investment; huge scope of analytical data helps users explore markets, get detailed asset data, and track performance)
- Healthtech ecosystem for hospital staff (a unified system for communicating and distributing files among hospital staff; we have been working together since 2016)
Industries
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S-PRO is helping a startup company develop a mobile app for nutrition plans that includes social features and a nutrition calculation algorithm. They’ve used AWS and Python as the technology stack.
“I’m very impressed with S-PRO’s work. They’re very professional, detailed, and helpful.”
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4
- $10,000+
- 50 - 249 employees
- Vancouver, Canada
ImageX is a web design and development agency founded in 2001. They are based in Vancouver, British Columbia and have an additional development center in Kiev, Ukraine. ImageX is a mid-sized, well-established firm with just over 40 employees, all specializing in Drupal development. They have been a Drupal-exclusive agency since 2006 and are considered experts in development for the open-source CMS. ImageX's experience has earned them the business of several globally relevant brands seeking complex Drupal solutions.
Clients
- Apple
- Stanford University
- YMCA
- Adidas
Industries
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An HIV-prevention nonprofit organization hired ImageX to develop an informational site for one of their products. The site had to meet strict regulatory requirements and provide information about the product.
“They had great feedback and ideas, and they showed a high level of commitment and enthusiasm about the project.”
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5
- $100,000+
- 250 - 999 employees
- Zagreb, Croatia
Q agency is a software development firm founded in 2013. Based in Zagreb, Croatia, the company has additional offices in Oslo, Zürich, Belfast, U.K., Toronto, and Los Angeles. With a team of 120+ employees, they specialize in web development, UX/UI, custom software development, and mobile app development.
Clients
- The Times
- CocaCola
- BBC
- Manpower
Industries
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Q agency developed the UX/UI to complement a startup’s medical device hardware. The client provided Arduino-based demo boards and branding elements to reference as they developed the UX/UI in Android Studio.
“Overall, as the key user, I was very satisfied with Q agency’s work.”
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6
- $10,000+
- 50 - 249 employees
- Gliwice, Poland
Based in Gliwice, Poland, The Software House is a development agency that was founded in 2012. They specialize in custom software development (PHP, Node, Javascript, Mobile) for mostly small and medium-sized businesses. So far, their team has completed over 100 web, mobile app, and custom software development projects.
Clients
- eSky.com
- GoConnectIT
- Reservix
- Pet Media Group
Industries
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The Software House developed a mobile app for a travel information platform. The new app is expected to replace two of the client's existing apps.
"Having defined a clear path, we had some fun working together, and I think that kept us motivated."
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7
- $5,000+
- 50 - 249 employees
- Novi Sad, Serbia
PopArt Studio is a professional digital agency based in Novi Sad, Serbia, and founded in 2010. They have a team of 27 employees who specialize in web design, web development, and UX/UI design. They mainly work with small businesses in the IT, eCommerce, and marketing industries.
Clients
- PepsiCo
- Schneider Electric SE
- Lear Corporation
- Nike Inc
Industries
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PopArt Studio designed and developed a WordPress website for a healthcare consulting company — their team also provided SEO services. They used the client’s new brand guidelines to create site mockups.
“PopArt Studio was a fantastic partner and helped us throughout the process.”
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8
- $25,000+
- 50 - 249 employees
- L'viv, Ukraine
inVerita is a global staff augmentation company headquartered in London with delivery centers in Ukraine and offices in Chicago and New York. Founded in 2015, they now have over 100 employees serving Fortune 1000 customers and startups all over the globe. inVerita also provides QA, mobile, web development, and DevOps services.
Clients
- Perforce, Methodics, Mediashout, Kroger Group, HILTI, numerous YCombinator-backed startups
Industries
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inVerita is developing a multi-module healthcare software to track fertility treatments between providers, nurses, patients, and pharmacies. There will be a connected mobile app to aid in communication.
"What we’re doing has never been done before; they understand what we’re picturing in our head."
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9
- $50,000+
- 50 - 249 employees
- Wrocław, Poland
Monterail is a software development company founded in 2010. The company is located in Wroclaw, Poland where its team of 110+ experts provides web development, custom software development, and IoT development services to mostly small and mid-market businesses.
Clients
- Pizza Hut
- Morizon
- Merck
- Solarflare
Industries
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Monterail built a mobile app for a logistics platform. Its features included languages and accommodation in different time zones, calendars, and holiday schedules. The team worked with the internal backend.
"My favorite thing about our collaboration is the app’s consistency. All pages have the same high quality and response."
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10
- $25,000+
- 50 - 249 employees
- Studio City, CA
Softermii is a software development firm with offices in Los Angeles and Kiev, Ukraine. Founded in 2014, Softermii's team of about 30 employees specializes in web and mobile app development. The team also offers UI/UX design services. Softermii primarily works with small and mid-market clients in the retail, real estate, and business services industries.
Clients
- Events10x
- Dollar Shave Club
- French Real Estate Association
- Rently
Industries
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Softermii has developed a social media platform’s iOS app with WebRTC and audio integrations after expanding on the client’s initial app design. They’ve ensured the app and WebRTC architecture are stable.
“It’s great to know that all of the development is backed up by careful planning.”
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11
- $50,000+
- 50 - 249 employees
- Chelsea, Australia
XWP is a web agency founded in Chelsea, Australia in 2005 with over 50 employees. They offer web development, web design, and UX/UI design solutions to mid-market and enterprise-level clients in the fields of IT and media.
Clients
- News Corp
- Automattic
- Rolling Stone
Industries
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XWP redesigned and developed a website in WordPress for a mental health company during a rebranding process. XWP now implements new functionalities and provides strategic feedback on the client's site content.
"XWP really helps us understand our development limitations while still being flexible to our needs."
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12
- $25,000+
- 1,000 - 9,999 employees
- New York, NY
Headquartered in New York, iTechArt is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, iTechArt has helped startups and fast-growing tech companies fill in their talent gap and create robust web and mobile solutions that users love. To date, iTechArt’s talent pool includes 3500+ engineers with experience in all of the latest technologies.
Clients
- ClassPass
- ZEFR
- Gain Capital (forex.com)
- Merkle
Industries
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iTechArt Group is augmenting a pet food company’s development team. They work on several projects independently and with internal developers using Python, Vue.js, and Nuxt.js.
"They deliver strong code quality, high test coverage, and brilliant architectural design."
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13
- $10,000+
- 50 - 249 employees
- Rutland, MA
Scopic is a software development and creative digital marketing company from Boston. Founded in 2006, their team consists of over 280 developers, designers, and marketers from around the world.Their services include web, mobile, and desktop development, as well as digital marketing services such as SEO, content marketing, and social media marketing.
Clients
- Mediphany
- OrthoSelect
- Endovantage
- Arizona Medicare Pros
Industries
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A consulting company has hired Scopic to help them build a learning system with an integrated 3D model. They've used TypeScript and JavaScript to create its frontend and continue to offer maintenance services.
"Scopic has an organized system, and they keep us in the loop at all times."
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14
- $5,000+
- 50 - 249 employees
- London, United Kingdom
Founded in 2007, Softblues is a software development company headquartered in Lviv, Ukraine. Their team of approximately 22 employees serves small to mid-sized businesses, particularly in the e-commerce and education sectors. They specialize in custom software as well as web and e-commerce development.
Clients
- FieldBI
- AutoBI
- AgroTop
Industries
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Softblues designed and developed a construction company’s website. They used React.js and Node.js to build a platform that allowed architects to send projects to the client.
"They followed the highest of standards with their work."
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15
- $10,000+
- 50 - 249 employees
- London, United Kingdom
Tech Alchemy was founded in 2016 and has two locations in London. Their team of nearly ten employees provides web development, mobile app development, and UX/UI design services for small businesses.
Clients
- Ocean Bottle
- TOAD
- MyBricks
- Moviecoin
Industries
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A B2B software company partnered with Tech Alchemy in order to develop a custom web app that will allow them to trigger and multi-sign blockchain transactions.
"We appreciated their experience working with startups to help them succeed in the long run."
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16
- $5,000+
- 50 - 249 employees
- Kyiv, Ukraine
Founded in 2015, Springs is a software development company headquartered in Kyiv, Ukraine and in Naberezhnye Chelny, Russia. Their team provides custom software development, web development, and web design to small and mid market companies. The clients they primarily partner with are in the real estate, retail, transportation, e-commerce industries.
Industries
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Springs helped a software company develop a mobile application within a tight deadline. The team took over the project and followed the provided designs and assets, finishing the application in React Native.
"Springs delivered a quality project on time."
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17
- $25,000+
- 50 - 249 employees
- L'viv, Ukraine
Founded in 2015, Incora is a software development firm that offers web development and custom software development to their mid-market, small business, and enterprise clients in the business services, education, and healthcare industries. Their 50 employees are based out of Lviv.
Clients
- Ralph Wutscher
- Sven Crone
- Thomas Hambridge
- Grover Righter
Industries
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Incora provides Python development services from scratch to a software company. About ten engineers team up with the company for the project.
"The team is responsive and professional."
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18
- $1,000+
- 50 - 249 employees
- Odesa, Ukraine
Halo Lab is a full-stack design and development agency located in Odessa, Ukraine. The 12-person team offers UX/UI design, web design, and logo services to small business and midmarket clients in the consumer products & services, advertising & marketing, and business services industries.
Clients
- Auth0
- Mobalytics
- Mighty Buildings
- Wave Video
Industries
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Halo Lab is providing UI/UX design services for a gaming company.
"They were fast and delivered high-quality designs."
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19
- $1,000+
- 50 - 249 employees
- Thorold, Canada
Computan is a creative agency based in Thorold, Canada. Founded in 1987, the team of 34 specializes in digital strategy, e-commerce development, mobile app development, PPC and web development.
Clients
- Palmer Ad Agency
- openkey
- Remarkable Sales and Marketing
- Hero Certified Burgers
Industries
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Computan designed and developed a middleware system for a barbershop business. They pulled data from Shopify and posted it in the middleware, mapping all the information into Voyado.
"They did everything on time and were extremely communicative."
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20
- $100,000+
- 50 - 249 employees
- Austin, TX
Moove-it is a consulting and engineering firm headquartered in Austin, Texas, with a second office in Montevideo, Uruguay. Founded in 2006, Moove-it specializes in custom software development, web development, and mobile app development. Moove-it's team of 70 employees primarily work with small and midmarket businesses.
Clients
- Unilever
- Verifone
- BAMTECH Media
- Sierra Wireless
Industries
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Moove It was hired by a kinesiology clinic to design a custom software solution that allowed them to admit and manage their patients more efficiently. They spearheaded the entire development process.
"We were impressed with the team's knowledge and communication skills."
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21
- $10,000+
- 50 - 249 employees
- Tallinn, Estonia
Cleveroad is a software development company founded in 2014. They have offices in Ukraine, the U.S., Norway and a team of over 100 specialists. They are focused on native mobile development, web development, IT strategy, web design, emerging technologies, and cross-platform solutions.
Clients
- Virgin Atlantic
- HSBC
- TDC Denmark
- DPD Group
Industries
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Cleveroad built a Flutter-based mobile app for a technical solutions firm. They used Firebase on the backend of the product, which was aimed at providing healthy environments to people involved in competitions.
"They stayed directly on task and completed the project slightly ahead of schedule."
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22
- $5,000+
- 50 - 249 employees
- L'viv, Ukraine
SolidBrain Software is a software development team. Based in Lviv, Ukraine, their team of under 20 employees provides e-commerce and web development, along with app management and support. They were founded in 2014 and many of their clients are in the automotive industry.
Clients
- Terrao
- ASG
- GPL
- Slowianka PL
Industries
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SolidBrain developed a B2B website for a lubricant producer and distributor. The team started with the design layout and worked towards the backend functionality, following the step-by-step guidelines.
"I was impressed by how quickly the developers delved into the specific topic of the automotive market."
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23
- $250,000+
- 250 - 999 employees
- Broomfield, CO
Gorilla Logic provides nearshore Agile teams to Fortune 500 and SMB companies, bringing unparalleled expertise in the delivery of full-stack web, mobile, and enterprise applications. Founded in 2002 and headquartered in Broomfield, Colo., they have over 500 employees and development centers in San José, Costa Rica and Medellín, Colombia.
Clients
- A Place for Mom
- Arrow Electronics
- DaVita
- Maxar
Industries
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Gorilla Logic provides development outsourcing services to an energy company. They came onboard to help rewrite an application, porting it from flash player-based to web-based delivery using a browser model.
“We got a team of qualified engineers relatively rapidly, without a lot of work on our part.”
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24
- $50,000+
- 50 - 249 employees
- Belmont, CA
SteelKiwi is a 50+ web and mobile development company based in Ukraine with offices in California, Slovakia, and Israel. Started in 2011, the team creates robust digital solutions with rapid turnaround, regardless of the project’s complexity or scale.
Clients
- JobMatch
- Khabar
- Nova Vita
- Possio
Industries
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Steelkiwi had been hired to develop a mobile app for a peer-to-peer e-commerce platform. The platform was expected to promote fast and efficient buying between its users with PayPal.
"The thoroughness with which they code and test was what impressed me most."
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25
- $50,000+
- 50 - 249 employees
- San Francisco, CA
Cheesecake Labs is a software design and engineering partner that builds tech products. With locations in California and Brazil, they have been building apps since 2013. Their multidisciplinary team of 60+ designers, engineers, and project managers collaborate with clients to deliver software solutions. The company offers full-service development for iOS, Android, and Web platforms, including UI/UX design, backend engineering, project management, testing, launching, and maintenance.
Clients
- MercadoLibre
- Cargill/Agriness
- Sodexo
- AES Corporation
Industries
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Cheesecake Labs is developing an iOS and Android app for a manufacturing company. The app is for smart toilet seats that feature IoT technology. It also shows users some statistics on their toilet usage.
“They consider what we don’t know and our challenges, and then they anticipate issues and find solutions for us.”
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26
- $25,000+
- 50 - 249 employees
- Yerevan, Armenia
Simply Technologies is a software development company located in Yerevan, Armenia, with additional locations in Kharkiv, Ukraine and Sydney. It was founded in 2011 and has 27 employees. They offer web development and mobile app development services.
Clients
- Truthly
- Recomazing
- Digi-Connect
- JustHive
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Simply Technologies built a mobile application that predicts venue traffic. They created an admin panel with easy access to relevant data, integrated search functionalities, and designed the UI.
"The team was extremely professional, skilled, and effective."
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27
- $10,000+
- 50 - 249 employees
- Sarasota, FL
AnyforSoft is a web and mobile app development company based in Kharkiv, Ukraine with an office in Lutsk, Ukraine. Founded in 2011, the team of 49 specializes in web development, mobile app development, and custom software. They work with small and midmarket-level businesses, focusing on business services, education, and government.
Clients
- ProjektMagazin
- WehaveAnyspace
- Stage Entertainment
- Bellame
Industries
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AnyforSoft is providing development outsourcing and consulting services to a software development company. They support the company's large and complex projects, and their main focus is Drupal.
"We’re satisfied with AnyforSoft’s work, and we’re happy with them."
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28
- $25,000+
- 2 - 9 employees
- New York, NY
Studio Simpatico is a design and digital studio based in New York City. Founded in 2017, the small team of 4 specializes in UX/UI design, branding, web design, and more. They primarily work with small businesses, focusing on advertising and media, financial services, and media.
Clients
- Fireblocks
- Blockdaemon
- AmpleHarvest.org
- M.M.LaFleur
Industries
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Studio Simpatico was hired by a nonprofit organization to provide full-stack development services for their website. Their main goal was to reach an extensive display of their products on the site.
"I have never worked with a contracted firm on any project with as attentive, efficient, and enjoyable workflow."
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29
- $10,000+
- 50 - 249 employees
- L'viv, Ukraine
OTAKOYI is a software development and design company located in Lviv, Ukraine. Since its establishment in 2011, it offers over 9 years of professional technical expertise and has grown up to 70 in-house specialists. The company’s services include UI/UX design, graphic design, and mobile and web development.
Clients
- KIA
- Phillip Morris
- Medicover
- Pete Health
Industries
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An IT services and consulting company was looking to supplement their mobile app development efforts, so they engaged with OTAKOYI to serve as an extension to their in-house development team.
"They help us accomplish our clients’ requests and get the right people involved in certain projects."
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30
- $25,000+
- 250 - 999 employees
- Dnipropetrovs'k, Ukraine
Web and mobile app development company Yalantis is based in Ukraine. Founded in 2008, the team of nearly 200 employees is fluent in web, Android, and iOS development – Swift, Kotlin, JavaScript, Ruby, Node.Js, Goland, and more.
Clients
- KPMG
- Zillow
- Toyota Tsusho
- Healthfully (US Healthcare web platform)
Industries
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Yalantis is providing app development services for a software company. They are building an app for iOS, Android, and the web, and they also conducting testing and QA for the solution.
"They are collaborative."
Need help selecting a company?
Based on your budget, timeline, and specifications we can help you build a shortlist of companies that perfectly matches your project needs. Schedule a free consultation with a Manifest Analyst.
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