Top 100 JavaScript Developers
January 2023Looking 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.
List of the Best JavaScript Development Companies
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1
- $10,000+
- 50 - 249 employees
- Kraków, Poland
Xfive is a full-stack software house in Krakow, Poland that serves businesses, startups, and creative agencies. Its team of around 50 has delivered web & mobile apps, websites, and e-commerce solutions since 2005 to its clients.
Clients
- Yanmar
- OECD
- SmartRecruiters, Inc.
- Departments of UC Berkeley
Industries
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Xfive has been hired by a corporate gift company to develop a solution for end clients to create their gift portals and track shipments. They've also connected the system to the company's Shopify account.
"Their availability and patience are great, and the talent on the team is 10/10."
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2
- $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 has rebuilt the WordPress website from scratch for a financial services company. They’ve migrated the design and features to develop the site again but making it faster, easier to use, and more secure.
“We have a true partnership with them; we work on and solve problems together.”
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3
- $10,000+
- 50 - 249 employees
- Montevideo, Uruguay
Xmartlabs is a software product development firm based in Montevideo, Uruguay with a US office in San Francisco. Established in 2012, the company employs about 30 employees that focus on developing operations management and business applications. Their services include mobile development for Android and iOS, web app development, and UI/UX design.
Clients
- CipherHealth
- Albumii
- Chefsfeed
- Nobly
Industries
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Xmartlabs are developing an SDK for AR, which includes a full-stack iOS app. The challenging process has involved Unity 3D assets, backend work, and the potential for social integration.
"They independently and creatively come up with solutions to technical problems that might happen down the road."
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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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Picking up from a previous vendor, ImageX has built a site for a nonprofit organization. They've fixed bugs and errors and implemented additional features and functionality into the site.
"ImageX' communication is phenomenal, and they are clearly dedicated to this project's success."
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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 Software is building a web platform with a Symfony backend and Angular frontend. They augmented the system—which is about to begin beta testing—with native iOS and Android apps.
"They have an amazing number of people with outstanding knowledge of digital trends."
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6
- $5,000+
- 250 - 999 employees
- Kraków, Poland
TechMagic is a tech consulting company founded in 2014 with over 140 full-time employees with headquarters in Lviv, Ukraine and representative offices in London and Boston. TechMagic is focused on custom web development using JavaScript and Serverless technologies. The company mainly works with seed and series A startups.
Clients
- eType Care
- TIDE
- Elements
- Good & Co
Industries
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TechMagic helped to extend a pre-existing cloud security software, scaling the solution to include additional cloud providers. The team provided mobile app development and QA services.
"They don’t make business mistakes because they are professional and they value their people."
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7
- $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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Software House’s involvement began with developing a minimum viable product and continued with ongoing core development services.
"They didn’t just ask for tasks and then complete them. They actually put thought into it."
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8
- $25,000+
- 50 - 249 employees
- Kyiv, Ukraine
ARTKAI is a full-cycle digital product development and consulting company with an emphasis on UX. Founded in 2014, they have about 100 employees and work with SME’s from the US and EU markets. Their team takes care of Web and Mobile Development, UX/UI Design, and Digital Transformation of Businesses from initial research to complete product.
Clients
- Huobi Global (Crypto exchange platfrom)
- Nezha (Blockchain prediction market protocol)
- CEX.io (Crypto exchange app)
- Advanced Markets (Cryto Investments Consulting)
Industries
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Artkai developed a website for an IT outstaffing company. The team built the client's site and provided end-to-end development services. They also designed the UX using CJM and JTBD approaches.
"It was great to see them in action."
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9
- $50,000+
- 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, Scrafts, Dilligend, OpenLogic, Perfecto, Government of SA, WGSN, numerous YCombinator-backed startups
Industries
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InVertiaSoft provides outsourced development services to a consultancy firm, working on a project using Hybris e-commerce software. They provide developers with relevant expertize for the ongoing collaboration.
“[The developers] meet my expectations.”
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10
- $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 is doing customized web dev, taking over work when the previous partner failed to deliver. They work on numerous projects, including cost reduction within the app and feature updates.
“They produce more results, work harder, and have more expertise than our previous partner.”
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11
- $50,000+
- 250 - 999 employees
- London, United Kingdom
One Beyond is a bespoke software development and digital transformation company headquartered in London with additional engineering centers in Madrid (Spain), Budapest & Szeged (Hungary) and Bucharest (Romania). Across international locations, they have a team of more than 350 individuals providing custom software, web and mobile application development and large- scale digital transformation to a diverse clientele.They support large established businesses, nonprofits, government organizations, and VC-funded startups
Clients
- Smith & Nephew
- GAIL's Bakery
- Costa Express
- Pearson
Industries
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One Beyond (formerly DCSL GuideSmiths) developed a cloud-based web app for a contract company. The digital tool lets users define large construction projects and streamlines the procurement process for contractors.
“Whenever there was a problem, they helped us come up with a solution.”
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12
- $25,000+
- 50 - 249 employees
- Los Angeles, 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 redeveloped an existing fantasy sports MVP for iOS/Android and in doing so, improved the UI/UX and refined the core functionality.
"They've really tried to go the extra mile to handle the project in the best way possible."
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13
- $5,000+
- 250 - 999 employees
- Kolkata, India
Capital Numbers is a digital production outsourcing company headquartered in Kolkata, India, with additional locations in Beerwah, Australia, Dover, Del., and the U.K. The company was founded in 2012, and has a team of nearly 300 people who provide web development, custom software development, mobile app development, and e-commerce development. They provide services mostly to mid-market businesses, but also to enterprise and small businesses. The businesses they serve are in different industries including the advertising & marketing, business services, and financial services industries.
Clients
- Consumer Reports
- Fundation
- Thomson Reuters
- HelloBar
Industries
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Capital Numbers provided website development services for an educational platform. They developed plug-ins and redesigned the style to match the site's new functionalities.
"Their team was very flexible, allowing me to do small projects one at a time."
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14
- $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
- Hastings Deering
- Exaloan
- Modo Energy
- JobDone
Industries
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S-Pro built a sports organization mobile app from scratch to help a sports agency organize and manage events, and collect payments. They developed a react-app for Android and iOS.
"Anytime I needed anything, they were available for me."
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15
- $50,000+
- 50 - 249 employees
- New York, NY
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 provides development resources for a social networking platform. The developers hired through them are working on the company's mobile app. One resource is a React developer, and the other is a QA tester.
"It is clear that they very carefully vet the people they hire."
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16
- $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 assisted with the development of a flagship mobile app (iOS and Android), allocating a specialized resource for each platform version. The team now provides QA testing and updates as needed.
"iTechArt can scale with us as we grow, and they can do it fast."
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17
- $50,000+
- 250 - 999 employees
- Irvine, CA
Vincit California is a software development company that has provided mobile app development, custom software development, and UX/UI design services to their clients since 2007. Their team of 1,000 employees is based out of Irvine, Calif. With another office in Helsinki.
Clients
- Splunk
- Tommy Car Wash Systems
- ScoutUS Pro
- Logitech
Industries
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Vincit helped a technology startup develop the first version of their iOS and Android mobile app using GitHub and Google Cloud. Their scope included UI/UX design, API development, and app testing and support.
“Vincit’s customer care and depth of knowledge were impressive.”
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18
- $5,000+
- 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 provided branding, graphic design, and UI/UX design services for a live-video speed dating platform. Using Figma, they created 30 logo variations, color palettes, typography, and many other assets.
“Their project management was perfect.”
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19
- $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 healthcare education company hired Scopic to develop a video production software. The solution allowed the client to easily produce video explanations of their customers' medical and imaging study results.
“They were accommodating of the changes in the scope and flexible in meeting our vision for the final product.”
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20
- $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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An IT services company partnered with Springs to develop a subscription-based product website. The team built according to the client’s designs, integrating an admin panel and Stripe and PayPal payment gateways.
"The way they had a 360-degree view of every feature even before they are pushed into production gave me peace of mind."
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21
- $25,000+
- 250 - 999 employees
- Warszawa, Poland
ITMAGINATION is a technology services company in Warsaw, Poland with more than 400 employees. Established in 2008, they do customer software development, web development, and BI and big data consulting. ITMAGINATION primarily serves midmarket–enterprise clients in the financial services, business services, and utilities sectors.
Clients
- Kabbage
- Greenlight
- BNP Paribas
- L'Oréal
Industries
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ITMAGINATION was hired by a financial services company to build and maintain a custom IT solution. The system supports operations, sales, and other materials for the organization.
"The project went smoothly, and the team was always able to translate our vision into a real, working system."
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22
- $5,000+
- 50 - 249 employees
- Nadiad, India
Groovy The Web Firm is a web design and digital marketing company headquartered in Nadiad, India. It was founded in 2015 and has 14 employees. They offer custom software development, mobile app development, and web development services. They mainly serve midmarket and small business clients in the IT, health care & medicine, and e-commerce sectors.
Clients
- MyCribBooking Malaysia
- XtraRecharge India
- BuyandSellOffers USA
- Pipeline Management Australia
Industries
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Groovy Technoweb Pvt. Ltd. is a data compliance platform's development partner. They used the latest web technologies to create database encryption, two-factor verification, and a third-party billing platform.
"Our project has gone above and beyond to the initial scope of work to what we had agreed upon."
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23
- $10,000+
- 10 - 49 employees
- Zaporizhzhia, Ukraine
Open source contributors as a guarantee of product delivery, 5+ years of technical niche expertise (Angular, React Native, Ionic, Node.js), personal approach, high internal code standards, flexible management, open-minded team. Enjoy your coffee while we’re building your app! We think that every idea is worth spreading - it just needs a special approach and the right people to take care of it. We proved our technical skills and narrow Angular specialization by contribution to open source. Our complete transparency is a guarantee of quality code, resulting in a successful project outcome.
Clients
- Stepler - #1 Swedish Fitness App
- Normative - Sustainability reporting system
- Station - One App to rule them all!
- Octonotes - Keep ideas smart
Industries
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As a third-party contractor, 2muchcoffee augments an existing team developing a custom web app using Angular.
“2muchcoffee is highly responsive and reliable.”
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24
- $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 website that allows clients to schedule ultrasound appointments and make payments. The team currently manages SEO and is planning to launch a new version of the site.
“They’ve been immensely supportive and professional throughout, and they care about our business.”
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25
- $50,000+
- 50 - 249 employees
- Fremont, CA
CognitiveClouds is a mobile app development company that was founded in 2012. CognitiveClouds has locations in Fremont, Calif. and Bangalore, India, where its team of 73 provides mobile app development, web development, and UX/UI design services to small and enterprise businesses alike.
Clients
- Walmart
- Verizon Media
- UBS
- Volkswagen
Industries
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CognitiveClouds developed a mobile application compatible with iOS and integrated with the back-end servers. It allows the users to automatically transfer video files to the private VIBLIO library.
“The CognitiveClouds team was excellent in covering the agreed upon scope and meeting our deadlines.”
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26
- $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 was hired to supply developer resources for various projects of a web design company, including web and mobile app development using React Native and various WordPress sites.
"All the developers and team members showed perfect performance."
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27
- $50,000+
- 10 - 49 employees
- Mar del Plata, Argentina
XOOR is a software development company based in Mar del Plata, Argentina. It was founded in 2017 and now employs a team of 6 that provides web , e-commerce development, and custom software development services. Though they work primarily with small businesses, they also have experience partnering with mid-market outfits.
Clients
- Boundary Digital
- Grapevine.org
- Omni.cr
- CodersClan
Industries
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XOOR Inc. augmented an advertising services company's development team with autonomous developers for backlog and new functionalities. They worked within the client's roadmap and assisted in the design phase.
"They were proactive about improving the dynamics between both teams and were transparent about everything."
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28
- $25,000+
- 50 - 249 employees
- Gdańsk, Poland
Neoteric is a software development company with about 100 employees. Headquartered in Gdańsk, Poland, the company focuses on small, mid-market, and enterprise clients across industries including information technology, business services, and telecommunications. Neoteric was founded in 2005 and specializes in software development, AI development, and product design.
Clients
- Siemens (Electronics)
- Nestle (FMCG)
- The World Bank (Finance)
- Liveramp (Data integration)
Industries
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An AI software company hired Neoteric for custom software development. The application utilizes native iOS and Android security measures and includes custom-designed educational modules and a testing system.
“We were impressed that they could deduce what we wanted and deliver beyond our expectations.”
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29
- $10,000+
- 10 - 49 employees
- Greenville, SC
Headquartered in Greenville, S.C, Designli's team of 15 employees offer mobile app development, web development, UX/UI, and web design services. Since its founding in 2013, Designli helps entrepreneur and startup clients take their business to the next level with creative and transparent development and design solutions.
Clients
- VentureSouth Angel Investor Network
- EarthLink
- Michelin
- Juman Saudi Investment Company
Industries
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An education platform company has hired Designli to provide web and app development. They're creating products with log-in features for users and video, audio, text, and images files integrations.
''They commit to learning and understanding our business to provide professional suggestions.''
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30
- $25,000+
- 50 - 249 employees
- London, United Kingdom
Imaginary Cloud is a Web, Mobile and AI Software Development and UX/UI Design Company with offices in the UK, US and Portugal. In the last 11 years they have helped build and scale more than 300 applications, from Start-ups, Scale-ups to Enterprises, winning several global awards. They offer a comprehensive skill set of developers, data scientists and designers coupled with a streamlined agile process.
Clients
- Nokia
- Sage
- Ernst & Young
- BNP Paribas
Industries
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Imaginary Cloud has designed a web app for an international affairs agency focusing on the H-2A visa program. Currently, they’re developing the app and adding various features, including a Stripe integration.
“Whenever they have a target and a goal to hit, they hit it on the day.”
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