Top 100 JavaScript Development Companies in London

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.

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.

Vasterra is a client-centric software development company based in London with over 50 members. Since their founding in 2010, they have provided custom software, web, and mobile app development solutions to small and medium-sized companies.

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.

Gemstone is a big data company. The small Chorleywood, United Kingdom-based agency was founded in 2008. Their team specializes in BI & big data consulting & SI, web development, mobile app development, web design, and more.

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.
 

Pynest is a small IT staff augmentation company. The Tallinn, Estonia-based agency was founded in 2021. Their team offers IT staff augmentation and custom software 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.

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. 

Foresight Mobile is an end-to-end mobile development agency founded in 2016 based in Manchester, England. Run by a team of fewer than 10, they offer custom software, mobile app, and web development services to their clients.

Zesty is a full-service digital agency based in Dublin, Ireland, with additional offices in Belfast, Northern Ireland and London, England. Zesty was founded in 1996 and has 37 employees. Services offered by Zesty include web development, web design, and digital strategy.

Made Tech is a London-based software services provider that was founded in 2010. The company employs a team of 33 that provides e-commerce development, web development, custom software development, and conversion optimization services to mid-size and small businesses.

IdeaWork Studios is a full-service advertising, development, and design agency founded in 1999. Headquartered in New York City, the company also has offices in Santa Barbara, CA and Las Vegas, NV. The team of more than 20 employees offers branding, web design, web development, and other marketing and design services such as logo and packaging design and email marketing.

Sell Staged is a London-based web and mobile app development company founded in 2019 with no more than 50 professionals. They specialize in web development, mobile app development, and UX/UI design solutions for clients ranging from small firms to large companies.

Design Culture, a small branding agency, is located in London , United Kingdom. Established in 2006, the team provides branding, marketing strategy, web development, graphic design, and more.

Webdesign7 is a digital marketing agency based in London. Founded in 2011, their team of 8 specializes in web development and design, mobile app development, and digital strategy. The industries they focus on are advertising and marketing, consumer products and services, arts, entertainment and music.  

WP Minds is a web company founded in Lahore, Pakistan in 2010 with fewer than 50 professionals. They provide web development and application management support solutions to small businesses and firms.

Market Jar is a digital marketing and design agency that was founded in 2017 and is based in London. Their team of 3 employees specializes in SEO, advertising, and email marketing for primarily small business clients in the consumer products, retail, and e-commerce industries.

Founded in 2004, HeadChannel is a software development firm that offers custom software development, web development, and mobile app development services to their small business and mid-market clients in the IT industry. Their 50 employees are based out of offices in London and Katowice, Poland.

Sheer Digital is a creative digital agency founded in 2012. Based in London, the team of 4 employees specializes in web development, UX/UI design and eCommerce development. They primarily serve small business clients in financial services, consumer products & services and IT industries. 

Cynosure Designs is a web development company in London, United Kingdom. The company specializes in web development, branding, digital strategy, social media marketing, and more and has a small team.The company was founded in 2005.

NCube is an IT staff augmentation company. Their midsize team is based in Kiev, Ukraine and London, United Kingdom and provides IT staff augmentation, custom software development, mobile app development, and web development. The agency was launched in 2008.

Ecce. Is a small web design agency in Otford, United Kingdom. They provide web design, branding, e-commerce development, mobile app development, and more and were established in 1999.

Deazy is a small application development company. The Cardiff, United Kingdom-based agency was founded in 2016. Their services include mobile app development, custom software development, web development, ux/ui design, and more.

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.

200OK Solutions is a mobile app development firm based in Ahmedabad, India. Founded in 2009, their team of 30 serves clients in the hospitality, transportation, and dental sectors. Services include custom software development and web design.

StarNavi is an IT agency founded in 2017 with a team of 28 professionals. Based in Tallinn, Estonia, the company provides small and midmarket businesses with IT-managed services, IT staff augmentation, and web development assistance, working in the advertising & marketing, real estate, and business services industries, among others.

User experience design company Athlon: digital brand and product is in London, United Kingdom; Brooklyn, New York; Toronto, Canada and Sofia, Bulgaria. The midsize agency was launched in 2009. Their team focuses on ux/ui design, product design, web design, web development, and more.

Milo Creative is a digital studio located in London. Founded in 2002, it has a team of 17 that specializes in mobile app development, UX/UI design, and web development services. They work with companies in various industries including education, health care & medical, and advertising & marketing.

Drewl is a website development company headquartered in London, United Kingdom. The small agency was founded in 2019. Their team focuses on web development, web design, ux/ui design, digital strategy, and more.