Top 100 JavaScript Development Companies in the United Kingdom
The Best of February 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
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61$10,000+10 - 49 employeesLondon, EnglandRead More
COMPU-VISION S.A.R.L. Is a website development firm headquartered in Batroun, Lebanon; Miami Beach, Florida and London, England. The agency specializes in Web Development, Mobile App Development, and Custom Software Development and has a small team.The agency was launched in 2010.
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Luxury Rentals Miami Beach Sleeping Plaza Masdar KSA Jetour QatarIndustries
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62$10,000+10 - 49 employeesLondon, EnglandTLVTech, a web development company, is in Tel Aviv-Yafo, Israel; New York, New York and London, England. The firm specializes in Web Development, Mobile App Development, Artificial Intelligence, cloud consulting & SI, and more and has a small team.The firm was founded in 2017.Read More
Clients
Snyk Coretigo INX MetrofunIndustries
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63$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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64$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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65$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.
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High Touch Investment Corp Inc (USA) Assent Inc (Canada and USA) South Themes Colleges Group (UK) Airhosted (Switzerland)Industries
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66$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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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+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
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GoogleIndustries
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69$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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70$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.
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Key MediaIndustries
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71$5,000+250 - 999 employeesLondon, EnglandEstablished in 2010, Riseup Labs is a midsize AI development company. Their team specializes in Artificial Intelligence, IT staff augmentation, IT managed services, Custom Software Development, and more. The company is in Dhaka, Bangladesh; London, England; Dubai, United Arab Emirates and Dhaka, Bangladesh.Read More
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72$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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73$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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74$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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75$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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76$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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77$1,000+10 - 49 employeesLondon, EnglandTakeaway Reality is an AR/VR development company. Their small team is in London, England and Zagreb, Croatia and provides AR/VR development, Custom Software Development, Business Consulting, Web Development, and more. The firm was founded in 2020.Read More
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Microsoft FordIndustries
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78$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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79$1,000+10 - 49 employeesLuton, EnglandRSA Creative Studio is a Scottsdale, Arizona-based website development company. The small team focuses on Web Development, Web Design, Search Engine Optimization, UX/UI Design, and more and was established in 2023.Read More
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80$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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81$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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82$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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83$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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84$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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85$25,000+50 - 249 employeesAlexandria, VAPlavno 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
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86$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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87$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
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NutriMixologyIndustries
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88$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
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Greater London AuthorityIndustries
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89$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
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90$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
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General millsIndustries
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