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, ILRead More
BetterWorld 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.
Industries
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1951Undisclosed2 - 9 employeesLondon, EnglandCognition CRM, a CRM consulting and SI company, is located in London, England and New York, New York. They provide CRM consulting and SI and Market Research and were established in 2012.Read More
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1952Undisclosed10 - 49 employeesLondon, EnglandVC Innovations is a London, England-based CRM consulting and SI company. Their services include CRM consulting and SI and Market Research.Read More
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1953Undisclosed50 - 249 employeesDenver, COEstablished in 2008, X4 Technology is a big data company. Their team provides BI & big data consulting & SI and Cybersecurity.Read More
Industries
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1954Undisclosed10 - 49 employeesManchester, EnglandHedgehog Security is a Cybersecurity company. The firm is in Manchester, England. Their services include Cybersecurity.Read More
Industries
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1955Undisclosed10 - 49 employeesManchester , EnglandSmall CRM consulting and SI company CRM Consultancy, is located in Manchester , England. The team provides CRM consulting and SI.Read More
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1956Undisclosed10 - 49 employeesLondon, EnglandNEWAGE Solutions & Technologies is an IT managed services company. The Portland, Oregon-based team offers IT managed services and BI & big data consulting & SI.Read More
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1957Undisclosed10 - 49 employeesLondon, EnglandMicrobyte Solutions Limited is a small Portland, Oregon-based cloud consulting & SI company. The team specializes in cloud consulting & SI and IT managed services.Read More
Industries
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1958Undisclosed2 - 9 employeesEdinburgh, ScotlandCybersecurity company Rozygos Ltd is headquartered in Edinburgh, Scotland. They specialize in Cybersecurity and were founded in 2017.Read More
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1959Undisclosed50 - 249 employeesLondon, EnglandEstablished in 2017, Advisority is a big data company. The team offers BI & big data consulting & SI and CRM consulting and SI and is located in London, England and București, Romania.Read More
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1960Undisclosed50 - 249 employeesLondon, EnglandUBDS Digital is a cloud consulting & SI company in London, England. Their services include cloud consulting & SI and Cybersecurity.Read More
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1961Undisclosed2 - 9 employeesLondon, EnglandCRM consulting and SI company PartnerHub was launched in 2020. The small team provides CRM consulting and SI.Read More
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1962Undisclosed50 - 249 employeesBelfast, Northern IrelandSysco Software Solutions is a CRM consulting and SI company launched in 1980. Their services include CRM consulting and SI and ERP consulting and SI.Read More
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1963Undisclosed2 - 9 employeesLondon, EnglandMonread CRM is a CRM consulting and SI company. They are headquartered in Naas, Ireland and London, England, and their services include CRM consulting and SI and IT strategy consulting.Read More
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1964Undisclosed50 - 249 employeesCheadle, EnglandCRM consulting and SI company mhance is based in Dublin, Ireland and Cheadle, England. They focus on CRM consulting and SI and cloud consulting & SI and were launched in 1978.Read More
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1965Undisclosed10 - 49 employeesLondon, EnglandSolgari is a CRM consulting and SI company. Launched in 2012, the firm focuses on CRM consulting and SI.Read More
Industries
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1966Undisclosed50 - 249 employeesGlasgow, ScotlandLaunched in 1996, Cintra is a data analytics company and cloud consulting & SI company. The company focuses on BI & big data consulting & SI and cloud consulting & SI, and is midsize.Read More
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1967Undisclosed50 - 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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1968Undisclosed10 - 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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1969Undisclosed250 - 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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1970Undisclosed50 - 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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1971Undisclosed10 - 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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1972Undisclosed10 - 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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1973Undisclosed250 - 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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1974Undisclosed50 - 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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1975Undisclosed250 - 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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1976Undisclosed250 - 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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1977Undisclosed50 - 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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1978Undisclosed2 - 9 employeesCirencester, EnglandCybersecurity company Accelerate Technologies Ltd offers Cybersecurity and IT managed services. They were established in 2019.Read More
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1979Undisclosed2 - 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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1980Undisclosed2 - 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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Check out an IT Services Company in United Kingdom with the most new reviews in the past 12 months.
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