Top 100 JavaScript Development Companies in the United Kingdom
The Best of October 2026Looking for a top JavaScript developer in the United Kingdom?
If you're hiring a JavaScript developer to help you build or update a website that's responsive and interactive, consider the pros and cons of JavaScript as a programming language. Advantages include its speed because it's executed on the client-side; reduction in server load; and diverse functionality. Disadvantages to consider include security such as bugs on the client-side.
To assist you in your search for a partner, we’ve compiled this list of the top JavaScript development agencies in United Kingdom. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best United Kingdom JavaScript Developers
-
91$25,000+50 - 249 employeesCardiff, WalesRead More
Box UK is an enterprise software development company based in Cardiff, UK, with an office in London. The company, founded in 1998, has more than 50 employees who provide, among others, custom software development, web development, and enterprise app modernization services to various businesses.
Clients
OKdo.comIndustries
-
92$10,000+2 - 9 employeesLondon, EnglandWebpop Design is a web design company. Their small team is located in London, England. The firm focuses on Web Design, Web Development, and UX/UI Design.Read More
Clients
DatameerIndustries
-
93$10,000+1,000 - 9,999 employeesBirmingham, EnglandRead More
Chetu, Inc. is a custom software development company headquartered in Plantation, Fla. with several additional locations: Las Vegas, Clearwater, Fla., Brentwood, Tenn., Plano, Texas, Schaumburg, Ill., Madison, Wis., Marietta Ga., Rijswijk, Netherlands, and Noida, India. They have a team of more than 1,000 employees who specialize in custom software development, web development, and mobile application development services. Founded in 2000, they continue to support clients of all sizes in the consumer products and services, financial services, and gaming industries.
Clients
Foot LockerIndustries
-
94$25,000+10 - 49 employeesLondon, EnglandTotally.Tech is a custom software development company founded in 2000. The agency offers custom software development, enterprise app modernization, mobile app development, and application management & support and has a small team. The agency is headquartered in London, United Kingdom.Read More
Clients
Start Up Loans (British Business Bank)Industries
-
95$10,000+10 - 49 employeesLondon, EnglandEqual is a São Domingos de Rana, Portugal-based UX agency. The small team focuses on UX/UI Design, Product Design, Custom Software Development, Web Design, and more and was established in 2019.Read More
Clients
Management systems for Hospitality Management systems for Construction Management systems for Logistics Management systems for Energy & UtilityIndustries
-
96$50,000+50 - 249 employeesLurgan, Northern IrelandGCD, a software development company, was launched in 1999. The midsize team offers Custom Software Development, Mobile App Development, Web Development, UX/UI Design, and more. The company is headquartered in Lurgan, Northern Ireland and Dublin 2, Ireland.Read More
Industries
-
97$25,000+10 - 49 employeesLondon, EnglandWe Are Kitty is a small user experience design company founded in 2017. Their team focuses on UX/UI Design, Web Design, Web Development, E-Commerce Development, and more. The agency is headquartered in London, England; Cape Town, South Africa and New York, New York.Read More
Industries
-
98$10,000+50 - 249 employeesManchester, EnglandCTI Digital is a website development firm established in 2003. The company focuses on Web Development, Conversion Optimization, Pay Per Click, Web Design, and more and has a midsize team. The company is located in Manchester, England and Lancaster, England.Read More
Clients
Greater London AuthorityIndustries
-
99$5,000+10 - 49 employeesRedditch, EnglandBranding company SimplePlan Media was established in 2018. Their small team is based in New Delhi, India and Redditch, England. SimplePlan Media provides Branding, E-Commerce Development, UX/UI Design, Graphic Design, and more.Read More
Clients
SaltmineIndustries
-
100$25,000+50 - 249 employeesLondon, EnglandPlavno is a midsize app development company. The Alexandria, Virginia-based agency was founded in 2007. Their services include Mobile App Development, Artificial Intelligence, Custom Software Development, Web Development, and more.Read More
Clients
Mercedes, Xerox, Kia, eBay, PayPal, Amazon , IBM, Bank, MediacubeIndustries
-
101$25,000+10 - 49 employeesLondon, EnglandHex Digital, an advertising company, is headquartered in London, United Kingdom. The small company was launched in 2008. Their services include advertising, custom software development, ux/ui design, branding, and more.Read More
Industries
-
102$10,000+50 - 249 employeesLondon, EnglandCustom software development company PioGroup Software was launched in 2010. The company focuses on Custom Software Development, Artificial Intelligence, Web Development, Mobile App Development, and more and has a midsize team.Read More
Clients
Moving PipeIndustries
-
103$1,000+250 - 999 employeesLeeds, EnglandAppsNation, a mobile app development firm, is in Los Angeles, California; Los Angeles, California; Dubai, United Arab Emirates and Dallas, Texas. The midsize team provides Mobile App Development, AR/VR development, Low/No Code Development, Custom Software Development, and more and was founded in 2016.Read More
Industries
-
104$10,000+10 - 49 employeesLondon, EnglandRead More
Cloudflex, a custom software development firm, is in Kyiv, Ukraine. The small team specializes in custom software development, mobile app development, web development, Artificial Intelligence, and more. The firm was founded in 2018.
Clients
YazaIndustries
-
105$5,000+50 - 249 employeesLondon, EnglandRead More
Default-Value Software Developers is an e-commerce development company. They specialize in e-commerce development, custom software development, and web development and were founded in 2010. Their small team is Chercassy, Ukraine-based.
Clients
Quad NovaIndustries
-
106$5,000+50 - 249 employeesLondon, EnglandIConnect Digital Solutions Ltd is a London, England-based application development firm. They specialize in Mobile App Development, UX/UI Design, and Web Development and were launched in 2011.Read More
Industries
-
107$75,000+10 - 49 employeesBristol, EnglandPlumeStudio.com is a custom software development firm headquartered in Bristol, England. The small firm was founded in 2014. Their services include Custom Software Development, Web Development, Mobile App Development, Other Application Development, and more.Read More
Clients
GoogleIndustries
-
108$10,000+50 - 249 employeesExeter, EnglandFounded in 2017, EVOQINS is an app development company. The company offers Mobile App Development, Custom Software Development, and Web Development and has a midsize team. The company is in Bengaluru, India; Muscat, Oman and Exeter, England.Read More
Clients
Qatar FoundationIndustries
-
109Undisclosed10 - 49 employeesLondon, EnglandInventiff., a website development firm, was established in 2020. Headquartered in Cluj-Napoca, Romania and London, England, their small team specializes in Web Development, Mobile App Development, Artificial Intelligence, UX/UI Design, and more.Read More
Industries
-
110Undisclosed10 - 49 employeesLondon, EnglandDigivate is a small artificial intelligence company launched in 1998. Their team specializes in Artificial Intelligence, AI Consulting, Web Development, Social Media Marketing, and more. The firm is located in London, England.Read More
Clients
WhistlIndustries
-
111$10,000+10 - 49 employeesPreston, EnglandWozify is a web development firm. They specialize in Web Development, Custom Software Development, Mobile App Development, Artificial Intelligence, and more and were launched in 2012. Their small team is Budapest, Hungary-based.Read More
Clients
AuchanIndustries
-
112$10,000+250 - 999 employeesHampshire, EnglandCommunication Crafts is a website development firm. They are located in Lewes, Delaware; Hampshire, England and Ahmedabad, India and have a midsize team. The firm offers Web Development, Mobile App Development, Video Production, IT managed services, and more.Read More
Clients
NutriMixologyIndustries
-
113$10,000+10 - 49 employeesCoventry , EnglandImobisoft is an artificial intelligence company. The small team is in Coventry , England and London, England. Their services include Artificial Intelligence, Custom Software Development, Generative AI, Web Development, and more.Read More
Clients
NHS (Multiple divisions)Industries
-
114$10,000+50 - 249 employeesLondon , EnglandRead More
Web development firm Wise Vision was founded in 2018. The agency provides web development, e-commerce development, accounting, enterprise app modernization, and more and has a small team. The agency is in L'viv, Ukraine.
Clients
Beep AutoIndustries
-
115$5,000+250 - 999 employeesLondon, EnglandRead More
Coders Dev is a web design and mobile app development company based in London with offices in Singapore and Abu Dhabi, U.A.E. The company, founded in 2010, has more than 500 employees and provides web development and AI services. Coders Dev serves small and larger-sized companies in the health care & medical, hospitality & leisure, consumer products & services, financial services, gaming, telecommunications, automotive, manufacturing, and e-commerce industries.
Clients
British TelecomIndustries
-
116$25,000+2 - 9 employeesSalisbury, EnglandHeadquartered in Salisbury, England, Headscape is a small web design company. They specialize in Web Design, Web Development, UX/UI Design, Business Consulting, and more and were founded in 2002.Read More
Industries
-
117$1,000+10 - 49 employeesFleet, EnglandRead More
Flow Guys, a website development company, was launched in 2022. The small Fleet, United Kingdom-based team focuses on web development.
-
118$25,000+50 - 249 employeesLondon, EnglandSoftware development company The Lightning Group was established in 2015. Their midsize team is in London, England. The Lightning Group focuses on Custom Software Development, Web Development, UX/UI Design, Mobile App Development, and more.Read More
Industries
-
119$25,000+10 - 49 employeesLondon, EnglandRead More
Founded in 2014, SoBold is a design and development agency headquartered in London. Their team of 10 specialize in web development, web design, print design, and social media marketing services for clients. Their clients primarily work with with small and mid market companies in the education, health care, hospitality, energy, and consumer product industries.
Clients
Industries
-
120$25,000+10 - 49 employeesLondon, EnglandRead More
Steadfast Collective is a custom software development company established in 2014. The small team focuses on custom software development, web development, and e-commerce development. The agency is located in London, United Kingdom.
Clients
National Caravan CouncilIndustries
Get connected with a company for free
Tell us about your project, and we'll match you with vetted companies that meet your requirements.
Get connected with the right company for you
We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.
Schedule ConsultationMost Reviewed JavaScript Developers in United Kingdom
Check out a JavaScript Developers in United Kingdom with the most new reviews in the past 12 months.
JavaScript Developers
United Kingdom
- 11 8 new reviews
- 12 8 new reviews
- 13 7 new reviews
- 14 7 new reviews
- 15 7 new reviews
