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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1171Undisclosed50 - 249 employeesLondon, EnglandCodurance Ltd, a custom software development company, was founded in 2013. The team provides Custom Software Development and Enterprise App Modernization.Read More
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1172Undisclosed10 - 49 employeesEdinburgh, ScotlandIntelligent Mobile is a web design company established in 2004. Their team specializes in Web Design and Mobile App Development.Read More
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1173$1,000+10 - 49 employeesStourbridge, EnglandWeb development company Developyn was launched in 2016. The company offers Web Development and Custom Software Development, and is small.Read More
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1174Undisclosed10 - 49 employeesCheltenham, EnglandR3 Digital is a CRM consulting and SI company. The firm is in Cheltenham, England. Their team specializes in CRM consulting and SI and Email Marketing.Read More
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1175$10,000+10 - 49 employeesLondon, EnglandHeadquartered in München, Germany and London, England, ACATO Europe is a Compliance Consulting company. Their services include Compliance Consulting and Business Consulting.Read More
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1176$100,000+10 - 49 employeesLondon, EnglandCode Enigma is a website development firm. Launched in 2010, their team provides Web Development and IT managed services.Read More
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1177$10,000+50 - 249 employeesBlackburn, EnglandGranby is a Digital Strategy company. Based in Blackburn, England, the agency was established in 1999. Their services include Digital Strategy and IT managed services.Read More
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1178$1,000+10 - 49 employeesLuton, EnglandSmall Advertising company Intarel Resources, is located in Luton, England and Lagos, Nigeria. The team provides Advertising and IT managed services.Read More
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1179$5,000+10 - 49 employeesLondon, EnglandLinear International LTD, an IT strategy consulting company, offer IT strategy consulting and IT managed services. They were founded in 2019.Read More
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1180$5,000+10 - 49 employeesLondon, EnglandCloud consulting & SI company theCTO was launched in 2016. The agency focuses on cloud consulting & SI and Custom Software Development, and is small.Read More
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1181$5,000+10 - 49 employeesLondon, EnglandYurkol LTD is an IT strategy consulting company. Established in 2011, the company is located in London, England. Their services include IT strategy consulting and cloud consulting & SI.Read More
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1182Undisclosed10 - 49 employeesDartford, EnglandCortec IT, a social media marketing firm, is in Dartford, England. They focus on Social Media Marketing and Search Engine Optimization.Read More
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1183$1,000+10 - 49 employeesMiddlesbrough, EnglandCyberSol360, a cloud consulting & SI company, was launched in 2022. The small team provides cloud consulting & SI and Cybersecurity.Read More
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1184$1,000+10 - 49 employeesCardiff, WalesCritical Cloud is a cloud consulting & SI company. Established in 2024, their team focuses on cloud consulting & SI and Cybersecurity.Read More
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1185$1,000+10 - 49 employeesLondon, EnglandSEO services firm Cyberonics Limited is located in London, England. Established in 2025, the team specializes in Search Engine Optimization and cloud consulting & SI.Read More
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1186$1,000+10 - 49 employeesLondon, EnglandFounded in 2024, BYTEOPS LTD is an IT strategy consulting company. Their services include IT strategy consulting and Cybersecurity.Read More
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1187$1,000+10 - 49 employeesNottingham, EnglandIK Group is a social media marketing company. The Nottingham, England-based agency focuses on Social Media Marketing and Web Design.Read More
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1188$10,000+10 - 49 employeesLondon, EnglandPancentric Digital is an UX agency. Launched in 2003, the team focuses on UX/UI Design and Digital Strategy. The firm is headquartered in London, England.Read More
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1189Undisclosed2 - 9 employeesRugeley, EnglandZephi is a web design agency. Their team is headquartered in Rugeley, England. The firm provides Web Design and CRM consulting and SI.Read More
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1190$50,000+250 - 999 employeesKakkanad, IndiaSoftware development firm G10X was launched in 2018. The agency focuses on Custom Software Development and Blockchain.Read More
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1191$1,000+250 - 999 employeesWembley, EnglandIT managed services company Tyleia was founded in 2022. The midsize team specializes in IT managed services and Web Development.Read More
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1192Undisclosed2 - 9 employeesLondon, EnglandFounded in 2007, PC Macgicians is a SEO agency. The team provides Search Engine Optimization and Web Design.Read More
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1193$1,000+2 - 9 employeesKibworth Harcourt, EnglandLittle Green Agency is a Kibworth Harcourt, England-based SEO services firm. Their services include Search Engine Optimization and Pay Per Click.Read More
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1194$1,000+50 - 249 employeesLongparish, EnglandBandwagon Telemarketing Ltd is a telephone answering service. The Longparish, England-based agency provides Call Center Services and CRM consulting and SI.Read More
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1195$1,000+2 - 9 employeesPortishead, EnglandFree Range Web is a website development firm. They offer Web Development and Web Design and are located in Portishead, England.Read More
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1196$1,000+2 - 9 employeesDunfermline, ScotlandUniversal Computing Ltd is a web design agency. The company is headquartered in Dunfermline, Scotland. Their team provides Web Design and IT managed services.Read More
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1197$25,000+50 - 249 employeesManchester, EnglandHeadquartered in Manchester, England and London, England, AMI3GO Ltd is a cloud consulting & SI company. They offer cloud consulting & SI and Custom Software Development.Read More
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1198$10,000+10 - 49 employeesBournemouth, EnglandUNBXD is a branding company. In Bournemouth, England and London, England, their team offers Branding and Pay Per Click.Read More
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1199Undisclosed50 - 249 employeesLondon, EnglandCausaLens is an AI development company. Launched in 2017, the team offers Artificial Intelligence and BI & big data consulting & SI.Read More
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1200Undisclosed50 - 249 employeesLondon, EnglandMozn Systems, an artificial intelligence development company, is in Riyadh, Saudi Arabia and London, England. They specialize in Artificial Intelligence and IT strategy consulting.Read More
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