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.
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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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451$1,000+2 - 9 employeesCentral Milton Keynes, EnglandPragmatiQ Solutions is a CRM consulting and SI company. The small Central Milton Keynes, England-based team focuses on CRM consulting and SI. The firm was launched in 2017.Read More
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452Undisclosed50 - 249 employeesBristol, EnglandLaunched in 2011, GO-ERP is a midsize ERP consulting and SI company based in Bristol, England and Vilnius, Lithuania. Their team specializes in ERP consulting and SI and BI & big data consulting & SI.Read More
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453$1,000+10 - 49 employeesYeadon, EnglandBig data company EnterpriseWorx was established in 2003. Located in Johannesburg, South Africa and Yeadon, England, the team specializes in BI & big data consulting & SI and cloud consulting & SI.Read More
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454$5,000+10 - 49 employeesBristol, EnglandImpact IT Solutions is an IT managed services company. Headquartered in Bristol, England, the team focuses on IT managed services and cloud consulting & SI.Read More
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455$1,000+10 - 49 employeesSheffield, EnglandIT managed services company One2Call Ltd is in Sheffield, England. Their services include IT managed services and unified communications consulting & SI.Read More
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456Undisclosed250 - 999 employeesRoyal Leamington Spa, EnglandLRQA Nettitude is a Cybersecurity company. The New York, New York-based company specializes in Cybersecurity and IT managed services.Read More
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457$10,000+10 - 49 employeesLondon, EnglandRead More
Equinox IS is a software development firm based in London. The firm, founded in 2014, has a team of more than ten that provides custom software development, IT strategy consulting, BI & big data consulting & SI, cloud consulting & SI, AI, and enterprise app modernization services. Equinox IS serves small and midmarket companies in the financial services, business services, telecommunications, and IT.
Clients
Three AustriaIndustries
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458$25,000+10 - 49 employeesLondon, EnglandImmerse is an AR/VR development and other IT consulting and SI company. In London, England, their team provides AR/VR development and other IT consulting and SI.Read More
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459$25,000+50 - 249 employeesHorbury, EnglandApplication Management & Support company Propel Tech Ltd was launched in 2007. The agency offers Application Management & Support and Custom Software Development.Read More
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Quickline Communications Limited J.C.B - J.C. Bamford Excavators Limited Allsop Property Auction Mi Hub LTDIndustries
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460Undisclosed250 - 999 employeesLondon, EnglandMasergy is an IT managed services company established in 2000. Headquartered in Plano, Texas and London, England, the team specializes in IT managed services and Custom Software Development.Read More
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461$5,000+50 - 249 employeesLondon, EnglandNetstar is an IT managed services company. The London, England-based firm was launched in 2002. Their team specializes in IT managed services and other IT consulting and SI.Read More
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462$5,000+250 - 999 employeesNether Poppleton, EnglandTrustmarque Solutions Ltd is a Nether Poppleton, England-based big data company. They offer BI & big data consulting & SI and cloud consulting & SI.Read More
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463$5,000+50 - 249 employeesLondon, EnglandLaunched in 2000, hSo is a midsize IT managed services company based in London, England. Their team offers IT managed services and IT strategy consulting.Read More
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464$1,000+50 - 249 employeesLondon, EnglandOnApp, a cloud consulting & SI and IT managed services company, was launched in 2010. The midsize team focuses on cloud consulting & SI and IT managed services.Read More
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465$250,000+50 - 249 employeesShadwell, EnglandSpeedster IT, an IT strategy consulting company, was founded in 2014. The team offers IT strategy consulting and cloud consulting & SI.Read More
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466$1,000+10 - 49 employeeslondon, EnglandLucidica IT Support London, an IT managed services company, is headquartered in london, England. The team offers IT managed services and IT strategy consulting.Read More
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467Undisclosed250 - 999 employeesSlough, EnglandAcuvate Software Ltd. Is a midsize IT strategy consulting company in Slough, England. Their services include IT strategy consulting and Custom Software Development.Read More
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468$1,000+10 - 49 employeesBasingstoke, EnglandCybersecurity company Censornet was founded in 2005. Based in Basingstoke, England and Brøndby, Denmark, the team focuses on Cybersecurity.Read More
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469$10,000+250 - 999 employeesLondon, EnglandExponential-e, a Cybersecurity company, specializes in Cybersecurity and cloud consulting & SI. The firm is based in London, England.Read More
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470Undisclosed10 - 49 employeesLondon, EnglandNetwork Squad LTD is an IT strategy consulting company in London, England. They focus on IT strategy consulting and cloud consulting & SI.Read More
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471Undisclosed50 - 249 employeesBerkshire , EnglandLaunched in 2007, Proventeq is an ECM consulting and SI company. The team specializes in ECM consulting and SI.Read More
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472$10,000+50 - 249 employeesNorwich, EnglandJNext Technologies, a web development company, is located in Surat, India; Bhavnagar, India and Norwich, United Kingdom. They specialize in web development, mobile app development, e-commerce development, application management & support, and more and were established in 2013.Read More
Clients
DigiGroundIndustries
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473$5,000+10 - 49 employeesBournemouth, EnglandBBD Boom is a small CRM consulting and SI company located in Bournemouth, England. The team provides CRM consulting and SI and Digital Strategy.Read More
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474Undisclosed10 - 49 employeesBristol, EnglandOther IT consulting and SI company ADT Systems is located in Bristol, England. The team offers other IT consulting and SI and IT managed services.Read More
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475Undisclosed2 - 9 employeesNorthwood, EnglandWightbyte Computers is a small other IT consulting and SI company. Founded in 2001, the team focuses on other IT consulting and SI and IT managed services.Read More
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476$1,000+50 - 249 employeesLondon, EnglandMidsize Cybersecurity company Clear Infosec, is based in Jersey City, New Jersey and Toronto, Canada. The team focuses on Cybersecurity and IT strategy consulting.Read More
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477$50,000+10 - 49 employeesHemel Hempstead, EnglandArishi, a software development company, was established in 2002. Their small team is in London, United Kingdom. Their services include custom software development, web development, mobile app development, e-commerce development, and more.Read More
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478Undisclosed50 - 249 employeesNorth Harbour, New ZealandFlintfox International is a CRM consulting and SI and ERP consulting and SI company. The North Harbour, New Zealand-based team provides CRM consulting and SI and ERP consulting and SI.Read More
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479Undisclosed10 - 49 employeesCoventry, EnglandERP consulting and SI company Phocas was founded in 1999. The team focuses on ERP consulting and SI and CRM consulting and SI and is based in Coventry, England and Sydney, Australia.Read More
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480Undisclosed50 - 249 employeesAlderley Edge, EnglandEstablished in 1993, Chess Telecom is an IT managed services company. The team focuses on IT managed services and Custom Software Development and is in Alderley Edge, England.Read More
Industries
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