Top 100 IT Services Companies in the United Kingdom
The Best of February 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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1021$1,000+Freelancer employeesNewcastle upon Tyne, EnglandEstablished in 2023, Boxwire Technology Solutions is a small IT managed services company in Newcastle upon Tyne, England. Their team provides IT managed services and IT strategy consulting.Read More
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1022$1,000+250 - 999 employeesLondon, EnglandZenith Business Solutions is a Digital Strategy company. They are based in Al Kuwayt, Kuwait and Hyderabad, India. Their team offers Digital Strategy and IT strategy consulting.Read More
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1023Undisclosed10 - 49 employeesRuddington, EnglandCybersecurity company IK IT Solutions was established in 2020. The team specializes in Cybersecurity and IT managed services.Read More
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1024$1,000+10 - 49 employeesLondon, EnglandProStep Technologies is a cloud consulting & SI company. Launched in 2021, the team focuses on cloud consulting & SI and Cybersecurity. The agency is headquartered in London, England.Read More
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1025$10,000+10 - 49 employeesUxbridge, EnglandCBOSIT is a CRM consulting and SI company based in Delgany, Ireland and Uxbridge, England. Their services include CRM consulting and SI and ERP consulting and SI.Read More
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1026$75,000+2 - 9 employeesLondon, EnglandCloudarp, a cloud consulting & SI company, focus on cloud consulting & SI and IT managed services. They were founded in 2023.Read More
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1027Undisclosed2 - 9 employeesWakefield, EnglandHacked Website Fix is a Cybersecurity company. They were established in 2017 and offer Cybersecurity and IT managed services.Read More
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1028Undisclosed2 - 9 employeesGreat Oakley, EnglandEVCO Services is a small IT strategy consulting company. They offer IT strategy consulting and unified communications consulting & SI and were founded in 2023.Read More
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1029$100,000+50 - 249 employeesLondon, EnglandCaystard Group Intl is an IT strategy consulting company. They are in New York, New York and Kampala, Uganda. Their team offers IT strategy consulting and cloud consulting & SI.Read More
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1030Undisclosed2 - 9 employeesColchester, EnglandLaunched in 2015, Boomslang Consultants Limited is a small IT managed services company. Their team focuses on IT managed services and Cybersecurity.Read More
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1031Undisclosed10 - 49 employeesLondon, EnglandInteguards LTD is a Market Research company. The London, England-based firm was established in 2025. Their services include Market Research and IT strategy consulting.Read More
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1032$250,000+10 - 49 employeesLondon, EnglandLaunched in 2021, Ausmin Advisors is an IT strategy consulting company. The agency offers IT strategy consulting and BI & big data consulting & SI.Read More
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1033$1,000+10 - 49 employeesDartford, EnglandCloudBunch is a cloud consulting & SI company located in Dartford, England. Launched in 2021, the team provides cloud consulting & SI and IT staff augmentation.Read More
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1034$1,000+10 - 49 employeesKenton, EnglandSazeb Tech Consulting is a Lahore, Pakistan-based IT strategy consulting company. Launched in 2019, the team focuses on IT strategy consulting and BI & big data consulting & SI.Read More
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1035$1,000+2 - 9 employeesStotfold, EnglandIT managed services company CustomConfig is headquartered in Stotfold, England. They focus on IT managed services and IT strategy consulting and were launched in 2025.Read More
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1036$1,000+2 - 9 employeesLondon, EnglandCybersecurity company Dreadsec Ltd is headquartered in London, England. The team offers Cybersecurity.Read More
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1037$5,000+2 - 9 employeesNottingham, EnglandResponsive Analytix is a big data analytics company established in 2022. The team focuses on BI & big data consulting & SI and cloud consulting & SI and is in Nottingham, England.Read More
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1038Undisclosed2 - 9 employeesColchester, EnglandGreet Solutions Ltd is an IT strategy consulting company based in Colchester, England. They offer IT strategy consulting and Cybersecurity and were established in 2010.Read More
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1039$10,000+2 - 9 employeesLondon, EnglandIn London, England, Altidia Consulting is a small IT strategy consulting company. Their services include IT strategy consulting and cloud consulting & SI.Read More
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1040$10,000+10 - 49 employeesDunstable, EnglandTechAll Solutions is an IT strategy consulting company. Headquartered in Dunstable, England, the company was established in 2024. Their services include IT strategy consulting and IT managed services.Read More
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1041Undisclosed2 - 9 employeesLondon, EnglandSeltech IT Services Ltd is a cloud consulting & SI company. They were founded in 2011 and focus on cloud consulting & SI and Cybersecurity.Read More
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1042$1,000+2 - 9 employeesNew Malden, EnglandVMR Check is a small IT strategy consulting company in New Malden, England and Southall, England. The team specializes in IT strategy consulting and cloud consulting & SI.Read More
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1043$1,000+2 - 9 employeesBedford, EnglandIT strategy consulting company PublicTec was established in 2021. The company provides IT strategy consulting and cloud consulting & SI, and is small.Read More
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1044Undisclosed2 - 9 employeesBishop's Stortford, EnglandFounded in 2020, CREAVO is an IT strategy consulting company. The firm focuses on IT strategy consulting and cloud consulting & SI, and is small.Read More
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1045$5,000+50 - 249 employeesLondon, EnglandCybersecurity company Cybernoq LTD is headquartered in London, England. Their services include Cybersecurity and IT managed services.Read More
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1046Undisclosed2 - 9 employeesWellingborough, EnglandIn Wellingborough, England, Mayfield intelligence Operations is a Cybersecurity company. The team provides Cybersecurity and IT strategy consulting.Read More
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1047$5,000+1,000 - 9,999 employeesLondon, EnglandSigma Software Security, a Compliance Consulting company, is in London, England and Warszawa, Poland. Their services include Compliance Consulting and Cybersecurity.Read More
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1048$1,000+2 - 9 employeesLondon, EnglandCybersecurity company Custodia Cyber is headquartered in London, England. The team provides Cybersecurity and IT managed services.Read More
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1049$5,000+10 - 49 employeesManchester, EnglandLaunched in 2025, Global Layers Technologies Ltd is an IT managed services company. The firm offers IT managed services.Read More
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1050$1,000+2 - 9 employeesLondon, EnglandCybersecurity company AttackIUM is in London, England. They provide Cybersecurity.Read More
Industries
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