Top 100 IT Services Companies in London

Based in Ascot, U.K., Information EXP is a Microsoft consultancy partner. Founded in 2019, their small team of 2 specializes in productivity, collaboration & UC consulting and SI and cloud consulting. 

Established in 2013, Empat is a mobile app development firm. The midsize team provides Mobile App Development, Custom Software Development, IT strategy consulting, Web Development, and more. The company is in Kyiv, Ukraine; San Francisco, California; London, England and Miami, Florida.

Kalinax is a big data agency based in Lisbon, Portugal with more than two experts. Founded in 2016, they specialize in big data and business consulting services for clients ranging from startups to enterprises in the industries of telecommunications, transportation, and more.

Softwire is a digital design, engineering and support agency, with offices in London, Cambridge and Manchester. Employing over 200 engineers we create bespoke digital software, mobile apps, and offer strategic IT consulting for some of the UK’s leading brands including the BBC, David Lloyd Clubs, Channel 5 and many large Government Departments.

ERRNA is a blockchain company founded in 2015. The small San Jose, California-based team provides blockchain, cybersecurity, marketing strategy, mobile app development, and more.

Founded in 2019, BreachLock Inc is a cybersecurity company. They are in New York, New York and have a midsize team. Their services include cybersecurity, IoT development, application testing, compliance consulting, and more.

Thoughtbot is a web and mobile app development company based in Boston, MA with offices in Austin, San Francisco, New York, Raleigh, Washington D.C, and London. Since 2003, this 50+ team has delivered empowering digital solutions to enterprise-level and small companies alike.

Influential Software is a software development company. The midsize team is based in London, England; Maidstone, England and Glasgow, Scotland. Their services include Custom Software Development, Web Development, BI & big data consulting & SI, IT managed services, and more.

Tibus Ltd is an internet company based in Belfast, Ireland that was founded in 1996. Their team of around 30 employees provides managed IT services to mid-market and small businesses in the IT sector. 

Tesseract Academy is an AI firm. Established in 2016, the team offers Artificial Intelligence, blockchain, IT strategy consulting, BI & big data consulting & SI, and more. Their small firm is headquartered in London, United Kingdom.

*instinctools is a custom software development company. They are headquartered in Stuttgart, Germany; Warszawa, Poland; Mississauga, Canada and Wilmington, Delaware and have a midsize team. Their services include Custom Software Development, Web Development, IT strategy consulting, Mobile App Development, and more. The firm was launched in 2000.

Mifort is a web development firm. Founded in 2015, the team focuses on web development and mobile app development. Their small company is Tallinn, Estonia-based.

IT managed services company TWC IT Solutions was established in 2011. They are located in Potters Bar, United Kingdom; Jersey City, New Jersey and Central, Hong Kong and have a small team. Their services include IT managed services, IT strategy consulting, cloud consulting & SI, unified communications consulting & SI, and more.

Hexagon Digital Lab Private Limited is an ERP consulting and SI company. Established in 2019, the team provides ERP consulting and SI, custom software development, and mobile app development. Their small company is headquartered in Zinj, Bahrain; Noida, India and Slough, United Kingdom.

Buttercups is a custom software development company and web development firm. The Kyiv, Ukraine-based firm was established in 2019. The small team offers custom software development and web development.

3 SIDED CUBE is an accredited app development and digital product agency headquartered in Bournemouth, England with additional locations in London, Chicago, and Washington, DC. Since their ambitious beginning in 2009, the team of about 38 has collaborated with startups and international organizations, reaching over 87 countries and more than 100 million global downloads. In addition to mobile app development, they also provide UX/UI design services to inspirational organizations.

Metasite is a software development firm. Their midsize team is based in Vilnius, Lithuania and London, United Kingdom. The firm specializes in custom software development, application management & support, IT managed services, and IT strategy consulting.

A1QA logo is a quality assurance and software testing company founded in 2002. Based in Denver, they have a team of 200+ employees that specialize in application testing and cybersecurity. They primarily serve midmarket clients in the IT and telecommunications industries.

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. 

Tech Alchemy is a software development studio based in London. Founded in 2016, they have around 150 employees who provide startups and small to medium-sized businesses with custom software development, blockchain development, and web & mobile app design and development. Services include prototyping, discovery, MVP development, and Web3 digital transformation

UserLab, an other IT consulting and SI company, was established in 2016. Their small team is located in Kings Place, United Kingdom and NEWCASTLE UPON TYNE, United Kingdom. Their services include other IT consulting and SI and ux/ui design.

SovTech is a custom software development company based in Johannesburg with offices in London and Nairobi. Founded in 2012, they work with enterprise and midmarket businesses with a focus on clients in the financial services industry. 

Ziffity Solutions LLC, an e-commerce development company, was launched in 2014. Their midsize team is based in Texas, Texas and offers e-commerce development, search engine optimization, ux/ui design, pay per click, and more.

Index.dev, a software development firm, was established in 2019. The midsize LONDON, United Kingdom-based team specializes in custom software development, web development, mobile app development, wearable app development, and 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.

DIGIMETA DEV LTD is a midsize. Established in 2022, the company is located in London, United Kingdom; Gloucester, United Kingdom and Bengaluru, India. Their services include.

TLVTech, a small cloud consulting & SI company, is headquartered in Ramat Gan, Israel. They specialize in cloud consulting & SI, custom software development, web development, Artificial Intelligence, and more and were established in 2017.

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.

Launched in 2020, hatch is a software development company. The company provides custom software development, mobile app development, ux/ui design, IT strategy consulting, and more and has a small team. The company is located in Berlin, Germany; Seefeld, Germany; Zürich, Switzerland and Triesen, Liechtenstein.