Top 100 JavaScript Development Companies in London

Blott.io, a small mobile app development firm, is in London, United Kingdom; Johannesburg, South Africa and Colombo, Sri Lanka. They provide mobile app development, ux/ui design, product design, custom software development, and more and were founded in 2018.

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.

Epigra is a digital service agency that is based in Istanbul, Turkey. Founded in 2009, Epigra's team of 15 employees works on UX/UI, web design, e-commerce development, mobile app development, and more.

TH-EY is a development agency in London, England. Founded in 2017, they have about 8 employees that serve clients in a variety of industries. Services include custom software development, web development, and mobile app development.

Softexpoit Pvt. Limited, a mobile application development company, was founded in 2021. The small London, United Kingdom-based team specializes in mobile app development, custom software development, other application development, application management & support, and more.

Founded in 2017, Lambert Labs is a software development agency that specializes in Python. Their team of fewer than 10 employees is based in London. They also provide web development services and application testing. 

NU Creative is a London, United Kingdom-based branding company. They offer branding, email marketing, advertising, graphic design, and more and were launched in 2004.

Authentic Studio is a creative agency founded in 2010 run by a team of less than 50. Headquartered in London, with an office in Hong Kong, Authentic Studio provides custom software development, UX/UI design, and web development services for small businesses as well as mid-market and large firms. They have experience working with clients from the fields of financial services, education, and automotive.

In London, United Kingdom, Main Menu is a software development firm. The small team offers custom software development, web development, web design, ux/ui design, and more. The agency was launched in 2009.

Intellectsoft is a boutique digital transformation consultancy headquartered in Palo Alto, California. The Company provides cutting edge engineering solutions for global and Fortune 500 companies with the mission to help enterprises accelerate adoption of new technologies, untangle complex issues that always emerge during digital evolution, and orchestrate ongoing innovation.

Intellectsoft maintains its advanced domain expertise through five dedicated labs:  Cognitive Computing, Decentralized Applications (i.e. Blockchain), Internet-of-Things (IOT), Premier Customer Experience (CX), and Mixed Reality (AR, VR).

Established in 2007, Intellectsoft operates across multiple offices with the engineering centers in the U.S., the U.K., the Nordic region and Eastern Europe.

Ester Digital is a web design agency based in Tallinn, Estonia. Founded in 2015, the team of 7 specializes in web design, graphic design, and logos. They work mostly with small business clients, and primarily work within the advertising and marketing, information technology, and business services industries.

W3 Lab Digital Solutions, a web development firm, was established in 2016. The firm specializes in web development, conversion optimization, pay per click, search engine optimization, and more and has a small team.

Golden Owl Consulting Ltd is a development agency founded in 2015 in Ho Chi Minh, Vietnam, with no more than 250 employees. They are experts in mobile app development, web development, and UX/UI design services.

IMEDIAVAN, an application development company, was launched in 2013. They are in London, United Kingdom; Barcelona, Spain and Paris, France and have a small team. Their services include mobile app development, web development, e-commerce development, and IoT development.

Contic, a web development firm, was launched in 2019. Their small team is in Petersfield, United Kingdom. Their services include web development, mobile app development, custom software development, and Artificial Intelligence.

Web design company Phoenix Road Creative was launched in 2016. They are based in Chelmsford, United Kingdom and Jupiter, Florida and have a small team. Phoenix Road Creative offers web design, social media marketing, content marketing, and search engine optimization.

Artificial intelligence company blackthorn.ai is headquartered in London, United Kingdom. Launched in 2021, the small team offers Artificial Intelligence, IT staff augmentation, and custom software development.

Mobcoder is a software development company based in Seattle. They also have an office in Noida, India. Founded in 2014, their team of 40 employees provides mobile app development, custom software, and web development services to its midmarket and small business clients. They also serve enterprise clients. 

Incepteo is an innovation-led ‘IDEA TO MARKET’ technology services firm providing 360-degree offerings starting from software development, hosting, support, and digital marketing. Our mantra is to deliver growth outcomes with entrepreneurial vision, effective user experience, and innovation. We bring start-up know-how, corporate maturity, and strategic techno- entrepreneurial experience on the table from inception to growth phases.

Blockchain company Bitorix was founded in 2018. Their small team is headquartered in London, United Kingdom. Bitorix provides blockchain, custom software development, and web development.

High Digital Limited is a web development firm established in 2017. Their small team is located in London, United Kingdom. Their services include web development, marketing strategy, web design, ux/ui design, and more.

SO technology is a design & technology company based in Cranfield, U.K., with an office in London. The company, founded in 2007, has a team of around ten that provides e-commerce development, web development, custom software development, digital strategy, mobile app development, UX/UI design, and web design services. SO technology serves small and mid-market companies in the e-commerce, business services, energy & natural resources, retail, and education industries.

Waracle is a digital products specialist in the UK with offices in London, Glasgow, Edinburgh, and Dundee. Founded in 2007, the company has more than 150 employees delivering high performance apps for mobile, web, Internet of Things, mixed reality, artificial intelligence, and voice. Waracle operates across a range of industry sectors, from fintech, energy, and digital health, to industrial IoT and oil and gas.

Website development company Island wizards was launched in 2021. Located in London, United Kingdom, their small team provides web development, web design, and ux/ui design.

Digiruu is a digital firm founded in 2016 run by a team of fewer than 10 professionals. Based in London, the company lends their expertise in mobile app development, UX/UI design, and web design to clients ranging from startups to large enterprises, working in various industries such as consumer products, advertising, and media.

Lemonat is a digital product design agency that was founded in 2012. Their 9-person team is headquartered in London with offices in Istanbul. They offer UX/UI design, web design, and digital strategy services to midmarket companies in the spaces of financial services, arts and entertainment, and e-commerce.

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. 

AVAMAE is a software solutions agency run by a team of fewer than 50 professionals founded in 2011. Based in London, the company offers custom software, web, and mobile app development services for small and medium-sized businesses from various industries, such as business services, financial services, and health care.

Theodo UK, founded in 2015, is a consultancy and digital development agency headquartered in London with an additional location in Paris. With a team of over 30 employees, they mainly provide mobile app development, web development, and custom software development services.
 

 Cefar is a digital agency founded in 2006 and headquartered in Leeds, UK with an office in London. Their team of 20 provides PPC, web design, graphic design, and web development services.