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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991$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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992Undisclosed2 - 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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993Undisclosed10 - 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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994$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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995$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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996$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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997$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
Industries
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998$1,000+2 - 9 employeesLondon, EnglandCybersecurity company Dreadsec Ltd is headquartered in London, England. The team offers Cybersecurity.Read More
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999$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
Industries
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1000Undisclosed2 - 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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1001$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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1002$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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1003Undisclosed2 - 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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1004$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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1005$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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1006Undisclosed2 - 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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1007$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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1008Undisclosed2 - 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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1009$5,000+10 - 49 employeesLondon, EnglandRead More
IT staff augmentation company RemoteStar Ltd. Is in Cambourne, United Kingdom. The small agency was launched in 2020. Their services include IT staff augmentation, IT strategy consulting, and custom software development.
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1010Undisclosed10 - 49 employeesLincoln, EnglandIntegrity Software is an ERP consulting and SI company. Their small team is located in Lincoln, England. Their team offers ERP consulting and SI and Accounting.Read More
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1011Undisclosed10 - 49 employeesEdinburgh, ScotlandCoastr is a cloud consulting & SI and Corporate Travel Management company founded in 2018. The agency specializes in cloud consulting & SI and Corporate Travel Management.Read More
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1012$5,000+2 - 9 employeesCoventry, EnglandDigition, an UX design agency, is in Coventry, England. The small agency was established in 2018. Their services include UX/UI Design, Web Design, Custom Software Development, Content Marketing, and more.Read More
Industries
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1013$50,000+50 - 249 employeesManchester, EnglandRobiquity is an IT strategy consulting company. Based in Manchester, England and Toronto, Canada, the team provides IT strategy consulting and cloud consulting & SI.Read More
Industries
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1014$5,000+10 - 49 employeesLondon, EnglandBlockchain company BlackStack Labs is located in London, United Kingdom. The small agency was founded in 2024. Their services include blockchain, web design, IT strategy consulting, custom software development, and more.Read More
Industries
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1015$1,000+2 - 9 employeesCheadle Hulme, EnglandWebsite development company Infinibs Technologies Pvt. Ltd. Is in Indore, India and Cheadle Hulme, England. The small agency was founded in 2025. Their services include Web Development, Mobile App Development, Artificial Intelligence, Generative AI, and more.Read More
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1016$25,000+50 - 249 employeesHolborn, EnglandBookmark Content and Communications, a Content Marketing company, is based in Holborn, England and Toronto, Canada. They offer Content Marketing and CRM consulting and SI and were launched in 1986.Read More
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1017Undisclosed50 - 249 employeesOxford, EnglandDiffblue is an artificial intelligence company. Headquartered in Oxford, England, their team offers Artificial Intelligence and cloud consulting & SI.Read More
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1018Undisclosed10 - 49 employeesEdinburgh , ScotlandCompanyNet is an Edinburgh , Scotland-based software development firm. They specialize in Custom Software Development and cloud consulting & SI and were established in 1996.Read More
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1019$5,000+10 - 49 employeesLondon, EnglandJarrang Limited is an Email Marketing and CRM consulting and SI company founded in 2003. The agency focuses on Email Marketing and CRM consulting and SI.Read More
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1020$1,000+2 - 9 employeesChester, EnglandBitscape Digital, an IT strategy consulting company, was launched in 2021. The team offers IT strategy consulting and Cybersecurity.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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