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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1351$5,000+10 - 49 employeesCheshire, EnglandBased in Cheshire, England and Crewe, England, UK IT Networks is a small IT managed services company. The team provides IT managed services and IT strategy consulting.Read More
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1352$5,000+1,000 - 9,999 employeesSpinningfields, EnglandNCC Group is an IT managed services company. They are located in Spinningfields, England and have large team. Their services include IT managed services and IT strategy consulting.Read More
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1353$5,000+10 - 49 employeesCanterbury, EnglandADM computing is an IT managed services company launched in 1984. The company focuses on IT managed services and Cybersecurity, and is small.Read More
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1354$5,000+10 - 49 employeesGlasgow, ScotlandBig data company Eyecademy was established in 2008. The small team offers BI & big data consulting & SI.Read More
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1355$5,000+10 - 49 employeesLondon, EnglandSmall big data company Praesto Consulting, is in London, England and Hoboken, New Jersey. Their services include BI & big data consulting & SI and CRM consulting and SI.Read More
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1356$5,000+50 - 249 employeesLondon, EnglandBluesource, a midsize IT managed services company, is headquartered in London, England. The team specializes in IT managed services and IT strategy consulting.Read More
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1357$5,000+2 - 9 employeesRuthin, WalesBoyns Information Systems Ltd. Is an IT managed services company in Ruthin, Wales. They specialize in IT managed services and IT strategy consulting.Read More
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1358$5,000+10 - 49 employeesLondon, EnglandCarrenza is a small IT managed services company headquartered in London, England. Their services include IT managed services and IT strategy consulting.Read More
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1359$5,000+50 - 249 employeesAberdeen , ScotlandIFB is an IT managed services company. The company is in Aberdeen , Scotland. Their team offers IT managed services.Read More
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1360$5,000+2 - 9 employeesLondon, EnglandFounded in 1998, InfoTech Solutions Limited, a small IT managed services company, is in London, England and Kent , England. Their services include IT managed services.Read More
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1361$5,000+50 - 249 employeesChineham, EnglandInteliSecure, a midsize IT managed services company, is headquartered in Chineham, England. The team offers IT managed services.Read More
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1362$5,000+50 - 249 employeesBerkshire, EnglandRoc Technologies, a midsize IT managed services company, is headquartered in Berkshire, England. Their services include IT managed services and IT strategy consulting.Read More
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1363$5,000+2 - 9 employeesChatham, England404, a small IT managed services company, is located in Chatham, England. The team offers IT managed services.Read More
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1364$5,000+2 - 9 employeesLondon, EnglandIT managed services company 5NINES Global LLP was established in 2004. The firm offers IT managed services, and is small.Read More
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1365$5,000+50 - 249 employeesChilworth, EnglandAap3 is an IT managed services company. Their team is based in Chilworth, England. The firm provides IT managed services and other IT consulting and SI.Read More
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1366$5,000+10 - 49 employeesHarrow, EnglandLocated in Harrow, England, Abiquo is an IT managed services company. The team specializes in IT managed services and cloud consulting & SI.Read More
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1367$5,000+2 - 9 employeesBirmingham, EnglandFounded in 1995, Abussi Ltd is a small IT managed services company located in Birmingham, England. Their team focuses on IT managed services and unified communications consulting & SI.Read More
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1368$5,000+10 - 49 employeesCaterham, EnglandAcuity Unified Communications is a small IT managed services company based in Caterham, England. Their services include IT managed services.Read More
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1369$5,000+Freelancer employeesGodalming, EnglandAegis Data Limited is an IT managed services company. Founded in 2009, the team offers IT managed services. The agency is in Godalming, England.Read More
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1370$5,000+50 - 249 employeesNottingham, EnglandAgilitas IT Solutions is an IT managed services and other IT consulting and SI company. The team focuses on IT managed services and other IT consulting and SI and is located in Nottingham, England.Read More
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1371$5,000+50 - 249 employeesLiverpool, EnglandAIMES Grid Services CIC is an IT managed services company. They are headquartered in Liverpool, England and have midsize team. Their services include IT managed services and cloud consulting & SI.Read More
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1372$5,000+50 - 249 employeesHigh Wycombe, EnglandAllied Worldwide Limited, an IT managed services company, focus on IT managed services and ERP consulting and SI. They were established in 1992.Read More
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1373$5,000+50 - 249 employeesTotton, EnglandAmicus ITS is an IT managed services company. In Totton, England, their midsize team focuses on IT managed services and cloud consulting & SI. The agency was established in 1988.Read More
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1374$5,000+10 - 49 employeesLondon, EnglandBased in London, England, Boxfusion Consulting is a small business intelligence company. The team focuses on BI & big data consulting & SI and cloud consulting & SI.Read More
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1375$5,000+10 - 49 employeesLondon, EnglandArdenta Limited is an IT managed services company established in 2001. The company focuses on IT managed services and IT strategy consulting, and is small.Read More
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1376$5,000+10 - 49 employeesHayes, England123 Reg is an IT managed services company. The Hayes, England-based firm was founded in 2000. Their services include IT managed services and IT strategy consulting.Read More
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1377Undisclosed50 - 249 employeesSheffield, EnglandAsk4 Data Centres, an IT managed services company, is located in Sheffield, England. Their services include IT managed services and IT strategy consulting.Read More
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1378$5,000+10 - 49 employeesSt. Albans, EnglandLaunched in 2001, Assign-IT Ltd is an IT managed services company. The small team offers IT managed services and IT strategy consulting.Read More
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1379$5,000+50 - 249 employeesMilford, EnglandAxess Systems Ltd is an IT managed services company. The Milford, England-based company was established in 2000. Their team focuses on IT managed services and IT strategy consulting.Read More
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1380$5,000+10 - 49 employeesLondon , EnglandIT managed services company Backbone UK was launched in 1998. The company focuses on IT managed services and IT strategy consulting, and is small.Read More
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