Top 100 JavaScript Development Companies in the United Kingdom
The Best of December 2025Looking 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
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61$5,000+10 - 49 employeesLondon, EnglandBurst Digital is a social media marketing agency founded in 2018. Their small team is located in London, England; New York, New York and San Francisco, California. The company offers Social Media Marketing, Web Design, Branding, Search Engine Optimization, and more.Read More
Clients
Vivienne Westwood - The Vivienne Foundation Artisan AI Cogency Global Moonbeam Car WashIndustries
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62$1,000+10 - 49 employeesManchester, EnglandRead More
Soap Media is a PPC company in Manchester, England and Preston, England. The small agency was launched in 2005. Their services include Pay Per Click, Web Design, Digital Strategy, Social Media Marketing, and more.
Clients
AdobeIndustries
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63$10,000+10 - 49 employeesLondon, EnglandRead More
TLVTech is a website development company in Tel Aviv-Yafo, Israel; New York, New York and London, England. The small company was founded in 2017. Their services include Web Development, Mobile App Development, Artificial Intelligence, cloud consulting & SI, and more.
Clients
Snyk Coretigo INX MetrofunIndustries
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64$25,000+2 - 9 employeesLondon, EnglandRead More
Launched in 2015, NerdCow is a small web design agency. Their team provides Web Design, Web Development, and Conversion Optimization. The agency is located in London, England.
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65$25,000+50 - 249 employeesLondon, EnglandIoT development company CimpleO Group was established in 2012. Their midsize team is based in Hong Kong SAR, Hong Kong; Bangkok, Thailand and London, England. CimpleO Group focuses on IoT development, Web Development, Web Design, Custom Software Development, and more.Read More
Clients
American Chemical SocietyIndustries
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66Undisclosed50 - 249 employeesLondon, EnglandRead More
Fourmeta is an e-commerce development firm founded in 2017. In London, United Kingdom, their midsize team offers e-commerce development, ux/ui design, and web development.
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67$10,000+10 - 49 employeesLondon, EnglandHue&machine is an user experience agency. The small London, England-based agency was founded in 2020. Their services include UX/UI Design, Custom Software Development, Web Design, Web Development, and more.Read More
Clients
Stanford University Microsoft Clair HenkelIndustries
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68$10,000+10 - 49 employeesLondon, EnglandInventiff. Is a website development company founded in 2020. They are based in Cluj-Napoca, Romania and London, England and have a small team. The company specializes in Web Development, Mobile App Development, UX/UI Design, and Low/No Code Development.Read More
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69$10,000+50 - 249 employeesMontréal, CanadaSignifly is a branding company established in 2010. They are located in Montréal, Canada; København, Denmark; Oslo, Norway and Stockholm, Sweden and have a midsize team. The company specializes in Branding, E-Commerce Development, Marketing Strategy, Digital Strategy, and more.Read More
Clients
GoogleIndustries
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70$25,000+10 - 49 employeesLondon, EnglandBit Zesty is a small Application Management & Support company. Based in London, England, the firm was founded in 2009. Their team focuses on Application Management & Support, Custom Software Development, E-Commerce Development, Web Development, and more.Read More
Clients
Oxford Medical SimulationIndustries
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71$10,000+10 - 49 employeesGuildford, EnglandRead More
Lightflows is a website development firm headquartered in Guildford, England and London, England. The small agency was established in 2009. Their services include Web Development, Mobile App Development, UX/UI Design, Custom Software Development, and more.
Clients
HomeViewsIndustries
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72$25,000+2 - 9 employeesLondon, EnglandRead More
Powered By Coffee is a London, United Kingdom-based website development firm. Launched in 2011, the small team focuses on web development, e-commerce development, web design, digital strategy, and more.
Clients
Key MediaIndustries
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73$50,000+10 - 49 employeesLondon, EnglandRead More
NEVERBLAND is a web development firm. They provide web development, web design, ux/ui design, custom software development, and more and were launched in 2010. Their small team is London, United Kingdom-based.
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TogetherallIndustries
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74$10,000+50 - 249 employeesAhmedabad, IndiaNimblechapps Pvt. Ltd. Is a mobile app development company headquartered in Ahmedabad, India; Austin, Texas and London, England. They offer Mobile App Development and Web Development and were established in 2014.Read More
Clients
Strom MotorsIndustries
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75$10,000+10 - 49 employeesLondon, EnglandRead More
ExpandX is a web development firm. Their small team is in Sofia, Bulgaria; London, England; München, Germany and New York, New York. The firm specializes in Web Development, Social Media Marketing, Pay Per Click, E-Commerce Development, and more. The firm was established in 2015.
Clients
High Touch Investment Corp Inc (USA) Assent Inc (Canada and USA) South Themes Colleges Group (UK) Airhosted (Switzerland)Industries
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76$10,000+1,000 - 9,999 employeesClearwater, FLRead 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
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77$10,000+50 - 249 employeesLondon, EnglandRead More
Haefele Software is a midsize Cape Town, South Africa-based software development company. They focus on Custom Software Development, Enterprise App Modernization, Web Development, API Development, and more and were founded in 2006.
Clients
Tesco Burger King AS Watson Group PikmykidIndustries
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78$5,000+10 - 49 employeesBirmingham, EnglandWeb design company Republic Marketing is in Birmingham, England and London, England. The small agency was established in 2020. Their team focuses on Web Design, Search Engine Optimization, Pay Per Click, and Web Development.Read More
Clients
Josh Fano Pume Rove Legal PureBurnIndustries
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79$25,000+10 - 49 employeeslondon, EnglandRead More
Thought&Function is a digital agency founded in London in 2017 with no more than 10 members. They are experts in web development, mobile app development, and UX/UI design solutions for clients in the industries of financial services, education, and health care.
Clients
DoctorLinkIndustries
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80$5,000+50 - 249 employeesLondon, EnglandRead More
Protocloud Technologies PVT. LTD. is an information technology and services provider that was founded in 2011. Their headquarters are in Jaipur, India, where they employ between 10 and 15 staff. They work with a range of midmarket and small businesses, offering a full suite of digital solutions, including e-commerce development, custom software development, websites, mobile apps and cloud integration.
Clients
WayfairIndustries
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81$25,000+10 - 49 employeesManchester, EnglandCorporation Pop Ltd is a small application development firm. The Manchester, England-based agency was founded in 1991. Their services include Mobile App Development, AR/VR development, Web Development, and UX/UI Design.Read More
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82$5,000+10 - 49 employeesBirmingham, EnglandOpace Digital Agency is a small social media marketing agency founded in 2008. Their services include Social Media Marketing, Search Engine Optimization, Pay Per Click, Web Design, and more. The company is located in Birmingham, England.Read More
Clients
Acorns Children's Hospice Shedstore Buy Fencing Direct Ferne animal SanctuaryIndustries
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83$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
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84$10,000+10 - 49 employeesLondon, EnglandRead More
Top Notch Dezigns® is a small web design agency. Founded in 2004, the firm is headquartered in New York, New York; Melville, New York; Los Angeles, California and London, England. Their team specializes in Web Design, Search Engine Optimization, Pay Per Click, Web Development, and more.
Clients
Home Depot Meadowbrook Financial Mortgage Bankers Long Island University Student Nursing Association (SNA) CassoneIndustries
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85$1,000+10 - 49 employeesLondon, EnglandAR/VR development company Takeaway Reality was launched in 2020. The small London, England-based team specializes in AR/VR development, Custom Software Development, Business Consulting, Web Development, and more.Read More
Clients
Microsoft FordIndustries
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86$50,000+10 - 49 employeesBerlin, GermanyBoldheart, a mobile application development firm, was founded in 2020. The agency specializes in Mobile App Development, Custom Software Development, UX/UI Design, IT strategy consulting, and more and has a small team. The agency is in Berlin, Germany; München, Germany; Zürich, Switzerland and Wien, Austria.Read More
Clients
ValoraIndustries
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87$10,000+50 - 249 employeesManchester, EnglandCTI Digital, a web development company, is headquartered in Manchester, England and Lancaster, England. They specialize in Web Development, Conversion Optimization, Pay Per Click, Web Design, and more and were established in 2003.Read More
Clients
Greater London AuthorityIndustries
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88$25,000+50 - 249 employeesCobham, EnglandMobcoder, an IT staff augmentation company, is located in Seattle, Washington; Cobham, England; Ghaziabad, India and Burnaby, Canada. The midsize company was launched in 2014. Their services include IT staff augmentation, Artificial Intelligence, UX/UI Design, BI & big data consulting & SI, and more.Read More
Clients
General millsIndustries
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89$25,000+50 - 249 employeesAlexandria, VAPlavno, an app development firm, was established in 2007. The midsize team offers Mobile App Development, Artificial Intelligence, Custom Software Development, Web Development, and more. The company is headquartered in Alexandria, Virginia; Berlin, Germany; Calgary, Canada and London, England.Read More
Clients
Mercedes, Xerox, Kia, eBay, PayPal, Amazon , IBM, Bank, MediacubeIndustries
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90$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.
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Quad NovaIndustries
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