Top 100 IT Services Companies in the United Kingdom
The Best of June 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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1111Undisclosed2 - 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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1112$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
Industries
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1113$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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1114Undisclosed2 - 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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1115$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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1116Undisclosed2 - 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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1117$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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1118$1,000+2 - 9 employeesLondon, EnglandCybersecurity company Custodia Cyber is headquartered in London, England. The team provides Cybersecurity and IT managed services.Read More
Industries
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1119$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
Industries
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1120$1,000+2 - 9 employeesLondon, EnglandCybersecurity company AttackIUM is in London, England. They provide Cybersecurity.Read More
Industries
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1121$10,000+10 - 49 employeesBirmingham, EnglandEstablished in 2018, Slink is an IT managed services company. The team focuses on IT managed services and Cybersecurity and is in Birmingham, England.Read More
Industries
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1122Undisclosed2 - 9 employeesMildenhall, EnglandVixarno Tech LTD, an IT managed services company, provides IT managed services and cloud consulting & SI. The firm is based in Mildenhall, England.Read More
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1123$5,000+2 - 9 employeesLondon, EnglandPMI Stack is an IT strategy consulting company. The team focuses on IT strategy consulting and BI & big data consulting & SI and is based in London, England.Read More
Industries
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1124Undisclosed2 - 9 employeesBillericay, EnglandInfo-Power is a cloud consulting & SI company. They were established in 1999 and specialize in cloud consulting & SI and IT managed services.Read More
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1125$5,000+2 - 9 employeesLondon, EnglandSapena Technologies Ltd is an IT strategy consulting company. Headquartered in London, England, the agency focuses on IT strategy consulting and unified communications consulting & SI.Read More
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1126Undisclosed2 - 9 employeesLondon, EnglandHaxashield IT & Cyber Solutions is an IT managed services company in London, England. They offer IT managed services and Cybersecurity and were established in 2024.Read More
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1127$5,000+10 - 49 employeesLondon, EnglandMSAdvance is a cloud consulting & SI company. Based in Madrid, Spain and New York, New York, their small team focuses on cloud consulting & SI and Cybersecurity. The firm was launched in 2010.Read More
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1128$1,000+2 - 9 employeesLondon, EnglandGrayscaled, a Computer Engineering company, was established in 2026. The team provides Computer Engineering and IT strategy consulting and is located in London, England.Read More
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1129$5,000+2 - 9 employeesStaines-upon-Thames, EnglandCloudVille Limited is a CRM consulting and SI company. They were established in 2017 and offer CRM consulting and SI and IT strategy consulting.Read More
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1130$75,000+10 - 49 employeesLeeds, EnglandTelecoms4Business, an IT strategy consulting and IT managed services company, was founded in 2005. The team focuses on IT strategy consulting and IT managed services.Read More
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1131Undisclosed2 - 9 employeesBristol, EnglandWaylight Atlantic is a Bristol, England-based IT strategy consulting company. They offer IT strategy consulting.Read More
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1132$1,000+2 - 9 employeesLondon, EnglandLuminova Analytics, a business intelligence company, focus on BI & big data consulting & SI and IT strategy consulting. They were established in 2025.Read More
Industries
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1133$5,000+10 - 49 employeesLondon , EnglandBinary Response is a Cybersecurity company. Based in London , England, their team specializes in Cybersecurity.Read More
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1134$10,000+2 - 9 employeesLondon, EnglandBased in London, England, Consult Code Create Ltd is a small CRM consulting and SI company. Their services include CRM consulting and SI and IT strategy consulting.Read More
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1135Undisclosed2 - 9 employeesLondon, EnglandCloudstrategix Consulting is a cloud consulting & SI company. Their team is based in London, England and offers cloud consulting & SI and other IT consulting and SI.Read More
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1136Undisclosed2 - 9 employeesLondon, EnglandCyberstrategix Consulting is a Cybersecurity company. The agency is located in London, England. Their team offers Cybersecurity.Read More
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1137$5,000+2 - 9 employeesLondon, EnglandIT strategy consulting company Cognoscere Associates Limited is based in London, England. The team specializes in IT strategy consulting and AI Consulting.Read More
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1138Undisclosed2 - 9 employeesBristol, EnglandQwyk Solutions is an ERP consulting and SI company launched in 2025. The small team provides ERP consulting and SI and Business Consulting.Read More
Industries
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1139$5,000+2 - 9 employeesLondon, EnglandFounded in 2023, IT Connect LTD is an IT managed services company. The company focuses on IT managed services and IT staff augmentation.Read More
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1140$50,000+50 - 249 employeesLondon, EnglandEstablished in 2022, Syntraflow is a midsize San Francisco, California-based cloud consulting & SI company. Their team specializes in cloud consulting & SI and ERP consulting and SI.Read More
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