Top 100 IT Services Companies in the United Kingdom
The Best of July 2026
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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2131Undisclosed50 - 249 employeesBelfast, Northern IrelandQarik, an Egen Company is a cloud consulting & SI company. Their midsize team is in Belfast, Northern Ireland and Chicago, Illinois. Their services include cloud consulting & SI and Generative AI.Read More
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2132Undisclosed10 - 49 employeesLondon, EnglandGrouper is a CRM consulting and SI company. Headquartered in Dublin, Ireland and London, England, the team focuses on CRM consulting and SI and Cybersecurity.Read More
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2133Undisclosed250 - 999 employeesLondon, EnglandIntegrity360 is a Cybersecurity company. The Dublin 18, Ireland-based firm was founded in 2005. Their team provides Cybersecurity and IT managed services.Read More
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2134Undisclosed50 - 249 employeesLiverpool, EnglandMidsize Cybersecurity company IriusRisk, is headquartered in Alpharetta, Georgia and Liverpool, England. The team specializes in Cybersecurity and Artificial Intelligence.Read More
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2135Undisclosed10 - 49 employeesBelfast, Northern IrelandCyber Guarded Ltd is a cloud consulting & SI and Cybersecurity company. Founded in 2006, the team offers cloud consulting & SI and Cybersecurity.Read More
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2136Undisclosed10 - 49 employeesLinton, EnglandCybersecurity company Mannassi IT Solutions was launched in 1996. The firm provides Cybersecurity and IT managed services, and is small.Read More
Industries
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2137Undisclosed250 - 999 employeesBurghclere,, EnglandFounded in 2009, The NAV | 365 People (TNP) is an ERP consulting and SI company. Their services include ERP consulting and SI and BI & big data consulting & SI.Read More
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2138Undisclosed50 - 249 employeesManchester, EnglandLaunched in 2015, The Data Crew, a midsize data analytics company, is located in Manchester, England. Their team offers BI & big data consulting & SI.Read More
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2139Undisclosed250 - 999 employeesCity of London, EnglandIn City of London, England and Birmingham, England, Computer Futures is a cloud consulting & SI company. Founded in 1986, the team provides cloud consulting & SI and CRM consulting and SI.Read More
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2140Undisclosed250 - 999 employeesLondon, EnglandRED Global is a cloud consulting & SI company. The team is in London, England and Frankfurt am Main, Germany, and their services include cloud consulting & SI and Cybersecurity.Read More
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2141Undisclosed50 - 249 employeesCrawley, EnglandLaunched in 1968, Macro 4 is a data analytics company. The company specializes in BI & big data consulting & SI and ECM consulting and SI, and is midsize.Read More
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2142Undisclosed2 - 9 employeesCirencester, EnglandCybersecurity company Accelerate Technologies Ltd offers Cybersecurity and IT managed services. They were established in 2019.Read More
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2143Undisclosed2 - 9 employeesWinchester, EnglandBITSmart.tech, an IT strategy consulting company, is headquartered in Winchester, England. The team provides IT strategy consulting and cloud consulting & SI.Read More
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2144Undisclosed2 - 9 employeesColeraine, Northern IrelandCauseway IT Services is a Cybersecurity company. Founded in 2023, the team focuses on Cybersecurity and cloud consulting & SI.Read More
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2145Undisclosed10 - 49 employeesBirmingham West Midlands, EnglandCyberQ Group is a Cybersecurity company. Their team is headquartered in Birmingham West Midlands, England and offers Cybersecurity and IT managed services.Read More
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2146Undisclosed50 - 249 employeesManchester, EnglandEmergeCyber, a Cybersecurity company, is located in Manchester, England. They offer Cybersecurity and were launched in 2015.Read More
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2147Undisclosed10 - 49 employeesBirmingham, EnglandEquilibrium Security is a Birmingham, England-based Cybersecurity company. Their services include Cybersecurity and Corporate Training & Coaching.Read More
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2148Undisclosed10 - 49 employeesLondon, EnglandIntuisco LTD is a big data analytics company. Headquartered in London, England, their small team offers BI & big data consulting & SI. The firm was established in 2017.Read More
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2149Undisclosed10 - 49 employeesLondon, EnglandIT-Tek Solutions Ltd is a small IT managed services company. Established in 2015, the team focuses on IT managed services and cloud consulting & SI.Read More
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2150Undisclosed1,000 - 9,999 employeesLondon, EnglandK2 Partnering Solutions is a CRM consulting and SI company. They are headquartered in London, England, and their services include CRM consulting and SI and ERP consulting and SI.Read More
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2151Undisclosed2 - 9 employeesBirmingham, EnglandIronshare is a Cybersecurity company. Their small team is headquartered in Birmingham, England. Their services include Cybersecurity and IT managed services.Read More
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2152Undisclosed2 - 9 employeesBirmingham, EnglandJC Cyber Security Services is a small Cybersecurity company in Birmingham, England. The team focuses on Cybersecurity.Read More
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2153Undisclosed10 - 49 employeesLondon, EnglandJUMPSEC Ltd is a Cybersecurity company founded in 2012. Their team specializes in Cybersecurity.Read More
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2154Undisclosed10 - 49 employeesStretford, EnglandEstablished in 1999, Linten Technologies is a cloud consulting & SI company. The team specializes in cloud consulting & SI and unified communications consulting & SI.Read More
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2155Undisclosed50 - 249 employeesNottingham, EnglandNexor is a Cybersecurity company. The firm is based in Nottingham, England. Their services include Cybersecurity and IT managed services.Read More
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2156Undisclosed10 - 49 employeesBirmingham, EnglandOmniCyber Security is a Cybersecurity company founded in 2015. Their team offers Cybersecurity and IT managed services.Read More
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2157Undisclosed2 - 9 employeesGainsborough, EnglandCybersecurity company Practical Infosec is based in Gainsborough, England. They specialize in Cybersecurity.Read More
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2158Undisclosed2 - 9 employeesLondon, EnglandHeadquartered in London, England, Realize Security is a small cloud consulting & SI company. Their services include cloud consulting & SI and Cybersecurity.Read More
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2159Undisclosed2 - 9 employeesKent, EnglandRuss Michaels Consulting is a web design company located in Kent, England. They specialize in Web Design and CRM consulting and SI.Read More
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2160Undisclosed2 - 9 employeesManchester, EnglandCybersecurity company RM Information Security specializes in Cybersecurity. They were launched in 2015.Read More
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