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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421$5,000+50 - 249 employeesWarwick, EnglandZenzero is an IT managed services company founded in 2004. Their team provides IT managed services and Cybersecurity.Read More
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422$10,000+2 - 9 employeesCilcain, WalesCybersecurity company vpntesting was launched in 2016. Headquartered in Cilcain, Wales, the team provides Cybersecurity and IT strategy consulting.Read More
Industries
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423$5,000+50 - 249 employeesWeybridge, EnglandRead More
BlueBridge One is a small IT managed services company. Founded in 2003, the team focuses on IT managed services, IT strategy consulting, and cloud consulting & SI. The firm is headquartered in Weybridge, United Kingdom; Johannesburg , South Africa and Cape Town Area, South Africa.
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424Undisclosed50 - 249 employeesLondon, EnglandEstablished in 2015, Pexlify, a Merkle Company is a CRM consulting and SI company. The company specializes in CRM consulting and SI, and is midsize.Read More
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425Undisclosed10 - 49 employeesLondon, EnglandTurba Media R&D PTY LTD, a media planning and buying company, was founded in 2023. Their small team is located in Collingwood, Australia; London, England and Los Angeles, California. The firm offers Media Planning & Buying, Digital Strategy, BI & big data consulting & SI, and Generative AI.Read More
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426$25,000+2 - 9 employeesLondon, EnglandRead More
Located in London, United Kingdom, Function is a web development company. The small firm was launched in 2020. Their services include web development, digital strategy, and IT strategy consulting.
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427$10,000+250 - 999 employeesEdinburgh, ScotlandException is a midsize AI Consulting company. The Edinburgh, Scotland-based agency was founded in 2002. Their team focuses on AI Consulting, Artificial Intelligence, cloud consulting & SI, and Generative AI.Read More
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428$50,000+50 - 249 employeesLondon, EnglandCore Technology Systems Ltd is an IT managed services company. They provide IT managed services and IT strategy consulting and were established in 1990. The firm is headquartered in London, England.Read More
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429$10,000+50 - 249 employeesLondon, EnglandErlang Solutions is a software development company. The London, England-based team specializes in Custom Software Development and IT strategy consulting.Read More
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430$1,000+Freelancer employeesIstead Rise, EnglandHelpFully IT is an Istead Rise, England-based IT strategy consulting company. They offer IT strategy consulting and cloud consulting & SI.Read More
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431Undisclosed1,000 - 9,999 employeesLondon, EnglandFounded in 2022, EdgeNext Technology is a large Bellevue, Washington-based cloud consulting & SI company. Their services include cloud consulting & SI and unified communications consulting & SI.Read More
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432$1,000+Freelancer employeesChelmsford, EnglandLWP Group is a small Digital Strategy company based in Chelmsford, England. Established in 2025, the team offers Digital Strategy, CRM consulting and SI, IT managed services, Web Development, and more.Read More
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433Undisclosed10 - 49 employeesNewcastle, Northern IrelandSmall IT managed services company Claremont, is located in Newcastle, Northern Ireland and Guildford, England. The team offers IT managed services and cloud consulting & SI.Read More
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City of EdinburghIndustries
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434Undisclosed50 - 249 employeesLondon , EnglandPenguin Commercial Limited, a Corporate Travel Management company, is located in London , England. The team focuses on Corporate Travel Management and IT managed services.Read More
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435$50,000+50 - 249 employeesLondon, EnglandCedar Management Consulting International is an IT strategy consulting company located in New York, New York and Mumbai, India. The team offers IT strategy consulting and Business Consulting.Read More
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436$5,000+10 - 49 employeesLondon, EnglandWeSeeNow is an IT managed services company. Their team is headquartered in London, England and Leeds, England. The firm focuses on IT managed services and IT strategy consulting.Read More
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437Undisclosed10 - 49 employeesHIGH WYCOMBE, EnglandEpoq IT is an IT managed services company in HIGH WYCOMBE, England. Their services include IT managed services and Cybersecurity.Read More
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438$5,000+10 - 49 employeesTwigworth, EnglandOptimising IT is an IT managed services company. Their small team of employees is headquartered in Twigworth, England. Their team focuses on IT managed services and IT strategy consulting.Read More
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439$5,000+10 - 49 employeesEdinburgh, ScotlandAI firm AISTREAMING is based in Forres, United Kingdom. The small team focuses on Artificial Intelligence, IT strategy consulting, BI & big data consulting & SI, cloud consulting & SI, and more. The agency was established in 2022.Read More
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440Undisclosed10 - 49 employeesLondon, EnglandEstablished in 2021, KOBU SMART LTD is a small London, England-based cloud consulting & SI company. Their team specializes in cloud consulting & SI and Cybersecurity.Read More
Clients
Travel RadarIndustries
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441Undisclosed50 - 249 employeesNewcastle upon Tyne, EnglandCybit is a Cybersecurity company launched in 1991. Located in Newcastle upon Tyne, England and Thatcham, England, the team specializes in Cybersecurity and IT managed services.Read More
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442Undisclosed1,000 - 9,999 employeesSurrey , EnglandNavisite is a cloud consulting & SI company headquartered in Andover, Massachusetts and Surrey , England. The team offers cloud consulting & SI and IT managed services.Read More
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443Undisclosed50 - 249 employeesNürnberg, GermanyEXASOL AG, a data analytics company, is based in Nürnberg, Germany and São Paulo, Brazil. The team offers BI & big data consulting & SI.Read More
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444$10,000+1,000 - 9,999 employeesLondon, EnglandAKQA is a CRM consulting and SI company. In San Francisco, California and London, England, the firm was founded in 1994. Their team provides CRM consulting and SI and E-Commerce Development.Read More
Clients
NikeIndustries
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445$50,000+250 - 999 employeesLondon, EnglandMidsize software development firm Kainos, is based in London, England and Belfast, Northern Ireland. The team provides Custom Software Development and Web Development.Read More
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446Undisclosed10 - 49 employeesMorley, EnglandCloud consulting & SI and IT managed services company eUKhost Ltd provides cloud consulting & SI and IT managed services. They were established in 2001.Read More
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447$5,000+2 - 9 employeesHarrow, EnglandServer Consultancy Ltd is an IT managed services company. Headquartered in Harrow, England, their small team focuses on IT managed services and IT strategy consulting. The agency was launched in 2004.Read More
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448Undisclosed1,000 - 9,999 employeesLondon, EnglandEndava is a software development firm. Their large team is in London, England and Atlanta, Georgia. Their services include Custom Software Development and IT strategy consulting.Read More
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449Undisclosed1,000 - 9,999 employeesLondon, EnglandHarvey Nash Group is a custom software development company launched in 1988. The agency focuses on Custom Software Development and Artificial Intelligence, and is large.Read More
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450Undisclosed50 - 249 employeesLondon, EnglandHeleCloud is a cloud consulting & SI company founded in 2016. The team provides cloud consulting & SI and IT managed services.Read More
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