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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1831Undisclosed50 - 249 employeesLisburn, Northern IrelandXperience is a cloud consulting & SI company. The team focuses on cloud consulting & SI and CRM consulting and SI and is located in Lisburn, Northern Ireland.Read More
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1832$5,000+50 - 249 employeesGateshead, EnglandAdvantex Network Solutions Limited is a midsize IT strategy consulting company. They offer IT strategy consulting and cloud consulting & SI and were established in 2002.Read More
Industries
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1833Undisclosed10 - 49 employeesBelfast, Northern IrelandAllsop Intelligent Software is a small data analytics company. Founded in 1996, the team offers BI & big data consulting & SI and cloud consulting & SI.Read More
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1834Undisclosed250 - 999 employeesBelfast, Northern IrelandSilverSky is a Cybersecurity company. They are headquartered in Morrisville, North Carolina and Milford, Connecticut. Their team offers Cybersecurity.Read More
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1835Undisclosed1,000 - 9,999 employeesLondon, EnglandEstablished in 1999, Secureworks is a large Atlanta, Georgia-based Cybersecurity company. Their services include Cybersecurity.Read More
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1836Undisclosed50 - 249 employeesBelfast, Northern IrelandLaunched in 2002, Blue Zinc IT Ltd is a midsize Belfast, Northern Ireland-based data analytics company. Their services include BI & big data consulting & SI.Read More
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1837Undisclosed50 - 249 employeesLondon, EnglandLaunched in 2011, ThreatSpike Labs is a midsize Cybersecurity company based in London, England. Their team specializes in Cybersecurity.Read More
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1838Undisclosed250 - 999 employeesLondon, EnglandUX design company Avensia, Inc. Was launched in 1998. The team focuses on UX/UI Design and IT strategy consulting.Read More
Industries
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1839Undisclosed50 - 249 employeesLondon, EnglandWestbrook International Ltd is a cloud consulting & SI and CRM consulting and SI company. The company is in London, England. Their services include cloud consulting & SI and CRM consulting and SI.Read More
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1840Undisclosed2 - 9 employeesLondon, EnglandCloud consulting & SI and CRM consulting and SI company CloudAnalysts is headquartered in London, England. The team offers cloud consulting & SI and CRM consulting and SI.Read More
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1841Undisclosed50 - 249 employeesBletchley, EnglandAculab, a cloud consulting & SI company, was launched in 1978. The team specializes in cloud consulting & SI and unified communications consulting & SI.Read More
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1842Undisclosed250 - 999 employeesOxford, EnglandNominet is an Oxford, England-based Cybersecurity company. Launched in 1996, the team specializes in Cybersecurity.Read More
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1843Undisclosed2 - 9 employeesPier Head, EnglandCloudJungle is a CRM consulting and SI company. Their small team is in Pier Head, England. Their services include CRM consulting and SI.Read More
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1844Undisclosed10 - 49 employeesLondon, EnglandFounded in 2015, Silver Softworks is a small CRM consulting and SI company based in London, England. Their team provides CRM consulting and SI.Read More
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1845Undisclosed10 - 49 employeesLondon, EnglandHeadquartered in London, England, Darklabs is a small Cybersecurity company. Their services include Cybersecurity.Read More
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1846Undisclosed250 - 999 employeesOldbury, EnglandA&O IT Group is a Cybersecurity company headquartered in Oldbury, England. They focus on Cybersecurity and were founded in 1963.Read More
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1847$1,000+Freelancer employeesLondon, EnglandBased in London, England, ALPN Digital is a CRM consulting and SI company. Established in 2023, the team provides CRM consulting and SI and Marketing Strategy.Read More
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1848Undisclosed2 - 9 employeesThorpe-le-Soken, EnglandAuxilium Curo Ltd is an IT managed services company. They specialize in IT managed services and Cybersecurity and were established in 2020.Read More
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1849Undisclosed50 - 249 employeesChorleywood, EnglandEXTENDED SOFTWARE TECHNOLOGIES LTD is a Direct Marketing company launched in 2010. Their team focuses on Direct Marketing and other IT consulting and SI.Read More
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1850Undisclosed50 - 249 employeesLondon , EnglandE-commerce development firm Pierce Washington was established in 2005. The team specializes in E-Commerce Development and IT strategy consulting.Read More
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1851Undisclosed10 - 49 employeesLondon, EnglandShiftlogic.io is a cloud consulting & SI company. Based in London, England, their small team offers cloud consulting & SI and CRM consulting and SI. The agency was launched in 2022.Read More
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1852Undisclosed250 - 999 employeesCity of London, EnglandLaunched in 2014, Contino is a cloud consulting & SI and Cybersecurity company. The company focuses on cloud consulting & SI and Cybersecurity, and is midsize.Read More
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1853Undisclosed250 - 999 employeesLondon, EnglandKocho is a Cybersecurity and IT managed services company founded in 2001. The midsize team offers Cybersecurity and IT managed services.Read More
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1854Undisclosed10 - 49 employeesCity of London, EnglandAppsecco is a Cybersecurity company launched in 2015. The company provides Cybersecurity.Read More
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1855Undisclosed50 - 249 employeesLondon, EnglandBilligence is a Chatswood, Australia-based business intelligence company. Their services include BI & big data consulting & SI and cloud consulting & SI.Read More
Industries
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1856Undisclosed50 - 249 employeesLondon , EnglandDarkbeam is a midsize Cybersecurity company launched in 2017. Their team specializes in Cybersecurity.Read More
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1857Undisclosed10 - 49 employeesLondon, EnglandC2 Risk is a London, England-based big data company and Cybersecurity company. They focus on BI & big data consulting & SI and Cybersecurity.Read More
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1858Undisclosed50 - 249 employeesStokenchurch, EnglandDifferentia Consulting is an ERP consulting and SI company. They are headquartered in Stokenchurch, England. Their team offers ERP consulting and SI and IT strategy consulting.Read More
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1859Undisclosed2 - 9 employeesCity of London, EnglandEstablished in 2013, Cyber Sentinel is a Cybersecurity company. The agency specializes in Cybersecurity, and is small.Read More
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1860Undisclosed2 - 9 employeesLondon, EnglandLaunched in 2015, Cobwebs Technologies is a small Cybersecurity company. Their services include Cybersecurity and Artificial Intelligence.Read More
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