Top 100 IT Services Companies in the United Kingdom
The Best of December 2025
IT services form the foundation of contemporary businesses. Today, a company's operations entirely rely on computer systems and software, which streamline processes for better efficiency. Having a partner that guarantees the seamless operation of these vital systems is crucial, as it directly impacts a brand's success—a robust and dependable backend results in a user-friendly frontend, enhancing traffic, engagement, and conversions.
The only problem modern companies face is finding such a partner. One with technical expertise and a deep understanding and insight into the company’s industry. This is why The Manifest created and curated a list of the top performers in the IT services development industry in the United Kingdom. Make sure to go through each option and read the user-contributed reviews about them. Choose the agency that best suits your company’s needs and requirements.
Jump to Most Reviewed Companies
List of the Best United Kingdom IT Companies
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$1,000+50 - 249 employeesNaperville, ILBetterWorld Technology is a midsize IT managed services company launched in 2003. Their services include IT managed services, Cybersecurity, IT strategy consulting, and Compliance Consulting. The company is headquartered in Naperville, Illinois; Naperville, Illinois; Winter Park, Florida and Denver, Colorado.Read More
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2221$10,000+50 - 249 employeesLondon, EnglandLaunched in 2013, morelife LONDON is an IT strategy consulting company. Their team provides IT strategy consulting and Business Consulting.Read More
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2222$5,000+1,000 - 9,999 employeesLondon, EnglandZS Associates is an user experience design company. The agency is based in Chicago, Illinois and New York, New York. Their services include UX/UI Design and cloud consulting & SI.Read More
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2223Undisclosed50 - 249 employeesLondon, EnglandAI development company BenevolentAI was founded in 2013. The team focuses on Artificial Intelligence and BI & big data consulting & SI and is headquartered in London, England.Read More
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2224Undisclosed50 - 249 employeesGlasgow , ScotlandLuminis UK Limited is a software development company. Founded in 2002, the team focuses on Custom Software Development and IT strategy consulting.Read More
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2225Undisclosed50 - 249 employeesBirmingham , EnglandCPiO Limited is a custom software development firm based in Birmingham , England. They provide Custom Software Development and Mobile App Development and were established in 1990.Read More
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2226Undisclosed50 - 249 employeesNottingham, EnglandLaunched in 1988, CSY Retail Systems is a midsize custom software development firm. Their services include Custom Software Development and IT managed services.Read More
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2227Undisclosed50 - 249 employeesLinby, EnglandHeadquartered in Linby, England, Blue Rock Systems is a software development firm. The team provides Custom Software Development and IT managed services.Read More
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2228Undisclosed50 - 249 employeesNottingham , EnglandPatchworks is a custom software development firm. The Nottingham , England-based agency was established in 2014. Their services include Custom Software Development and IT managed services.Read More
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2229$5,000+Freelancer employeesLondon, EnglandFounded in 2016, iDataHub is a big data analytics company. Based in London, England, the team offers BI & big data consulting & SI and Conversion Optimization.Read More
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2230Undisclosed50 - 249 employeesLondon, EnglandFormidable is an IT managed services company. They are headquartered in Seattle, Washington and London, England. Their team specializes in IT managed services and Custom Software Development.Read More
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2231Undisclosed50 - 249 employeesLondon, EnglandFounded in 1999, Francisco Partners is a midsize IT managed services company based in San Francisco, California and London, England. Their team provides IT managed services and Commercial Financing.Read More
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2232Undisclosed50 - 249 employeesLondon, EnglandCloud consulting & SI company Phi Partners was established in 2004. The midsize team offers cloud consulting & SI and IT managed services.Read More
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2233Undisclosed50 - 249 employeesLondon, EnglandCybersecurity company ONEiO is based in Helsinki, Finland and London, England. They specialize in Cybersecurity and IT managed services.Read More
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2234$5,000+Freelancer employeesMelbourn, EnglandAI firm Cyan Q provides Artificial Intelligence and BI & big data consulting & SI. They were launched in 2022.Read More
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2235Undisclosed50 - 249 employeesOxford, EnglandLaunched in 2007, Techzenure, a midsize IT strategy consulting company, is in Oxford, England and Gurugram, India. Their services include IT strategy consulting and IT staff augmentation.Read More
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2236Undisclosed1,000 - 9,999 employeesLondon, EnglandTricentis is an Application Testing company headquartered in Austin, Texas and Wien, Austria. They specialize in Application Testing and cloud consulting & SI and were founded in 2007.Read More
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2237$1,000+50 - 249 employeesLondon, EnglandLaunched in 2022, VMK Group is a midsize Zhytomyr, Ukraine-based Marketing Strategy company. Their services include Marketing Strategy and Social Media Marketing.Read More
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2238Undisclosed1,000 - 9,999 employeesCity of London, EnglandIProspect is an Advertising company founded in 1996. The agency focuses on Advertising and Social Media Marketing, and is large.Read More
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2239UndisclosedFreelancer employeesLondon, EnglandXcina Security Team, a small Cybersecurity company, is in London, England. Their services include Cybersecurity and IT managed services.Read More
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2240Undisclosed50 - 249 employeesLondon, EnglandLaunched in 2005, Excelencia is a cloud consulting & SI company. Located in London, England and Austin, Texas, the team provides cloud consulting & SI and ERP consulting and SI.Read More
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2241Undisclosed50 - 249 employeesLondon, EnglandElastacloud is a data analytics company. Founded in 2011, the agency is based in London, England and Almería, Spain. Their services include BI & big data consulting & SI and cloud consulting & SI.Read More
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2242Undisclosed50 - 249 employeesOrpington, EnglandLocated in Orpington, England and Hanoi, Vietnam, Sunrise Technology is a software development firm. Founded in 2009, the midsize team focuses on Custom Software Development, Web Development, Mobile App Development, IT staff augmentation, and more.Read More
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2243$10,000+50 - 249 employeesLondon, EnglandVrinsoft UK is a SEO services firm. The London, England-based company was launched in 2012. Their services include Search Engine Optimization and IT managed services.Read More
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2244Undisclosed50 - 249 employeesLondon, EnglandEstablished in 2019, Ingentive, a midsize Cybersecurity company, is headquartered in London, England. Their team specializes in Cybersecurity and IT managed services.Read More
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2245UndisclosedFreelancer employeesLeicester, EnglandThe I.T. Business Ltd is an IT managed services company. The company is in Leicester, England. Their services include IT managed services and Cybersecurity.Read More
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2246Undisclosed50 - 249 employeesSwindon, EnglandSilicon Valley Infomedia Pvt. Ltd. Is a web development company founded in 2004. The firm specializes in Web Development and Mobile App Development.Read More
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2247$50,000+10 - 49 employeesLeeds, EnglandDigital Strategy company GRM Digital provides Digital Strategy and Social Media Marketing. They are in Leeds, England and Sarajevo, Bosnia and Herzegovina.Read More
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2248$1,000+10 - 49 employeesReading, EnglandQorelogix - Analytics & App Development is a small graphic design agency. They focus on Graphic Design and Print Design and were established in 2018.Read More
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2249$1,000+10 - 49 employeesLondon, EnglandSmall web development company FAQTORY LTD, is based in London, England. Their services include Web Development and Web Design.Read More
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2250$10,000+10 - 49 employeesNottingham, EnglandKrazyTech Business Solutions Pvt.Ltd., a CRM consulting and SI company, focus on CRM consulting and SI and IT staff augmentation. They were established in 2018.Read More
Industries
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