Top 100 IT Services Companies in the United Kingdom
The Best of November 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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391$25,000+10 - 49 employeesRugby, EnglandRead More
CoreScripts Technologies LLP is a software development house headquartered in Pune, India. Founded in 2018, their team of 8–10 employees specializes in custom software development. They also offer BI and analytics, testing and QA, and cloud migration services.
Industries
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392$5,000+50 - 249 employeesLondon, EnglandCovertSwarm is a Cybersecurity company based in London, England and Wilmington, Delaware. Founded in 2020, the team provides Cybersecurity.Read More
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393Undisclosed250 - 999 employeesManchester, EnglandInKnowTech is an IT managed services company. The team is based in Bengaluru, India and Bengaluru, India, and their services include IT managed services and cloud consulting & SI.Read More
Industries
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394UndisclosedFreelancer employeesLondon, EnglandRead More
Saines Business Consulting is the solo enterprise of David Saines, an independent consultant based in London. Saines provides business consulting and productivity, collaboration & UC consulting and SI services to enterprise and smaller-sized companies in the financial services, transportation, utilities, and other industries.
Clients
Virgin Atlantic AirwaysIndustries
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395$5,000+250 - 999 employeesBorehamwood, EnglandRaygain Technologies is a cloud consulting & SI company. Located in Borehamwood, England and New Delhi, India, their team focuses on cloud consulting & SI and Cybersecurity.Read More
Industries
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396$5,000+2 - 9 employeesBirmingham, EnglandRead More
Appcentric is a web development company. Founded in 2013, the small firm is headquartered in Birmingham, United Kingdom. Their services include web development, mobile app development, ux/ui design, and product design.
Clients
GAMEIndustries
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397$10,000+2 - 9 employeesChester, EnglandBailey & Associates is an IT strategy consulting company. Their team is headquartered in Chester, England. The agency focuses on IT strategy consulting and ERP consulting and SI.Read More
Industries
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398$5,000+10 - 49 employeesLondon, EnglandButtercups is a custom software development company and web development firm. The Kyiv, Ukraine-based firm was established in 2019. The small team offers custom software development and web development.Read More
Clients
MobiWalletIndustries
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399$25,000+10 - 49 employeesRichmond, EnglandUser experience agency Unified is located in Richmond, England. The company offers UX/UI Design, Conversion Optimization, Digital Strategy, E-Commerce Development, and more and is small.The company was launched in 1993.Read More
Industries
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400$1,000+2 - 9 employeesHigh Wycombe, EnglandLaunched in 2018, Leadhook Media is an Email Marketing company. They are in High Wycombe, England and have a small team. The firm provides Email Marketing, Advertising, Direct Marketing, Conversion Optimization, and more.Read More
Industries
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401Undisclosed10 - 49 employeesLondon, EnglandLaunched in 2017, Hazy is a small big data company. Their services include BI & big data consulting & SI and Artificial Intelligence.Read More
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402$1,000+50 - 249 employeesWarrington, EnglandCloudCoCo Plc is a midsize Warrington, England-based IT managed services company. The team specializes in IT managed services and Cybersecurity.Read More
Industries
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403Undisclosed10 - 49 employeesLondon, EnglandWeb Design Agency UK is a SEO services firm. They provide Search Engine Optimization, IT managed services, Web Development, and E-Commerce Development and were launched in 2016. Their small team is in London, England.Read More
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404$10,000+10 - 49 employeesNewbury, EnglandSiaNTech is a small website development firm. Based in Newbury, United Kingdom, the agency was launched in 2021. Their services include web development, mobile app development, web design, IT strategy consulting, and more.Read More
Industries
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405$10,000+10 - 49 employeesLondon , EnglandRead More
Danger Farms is a London-based digital agency founded in 2012. With their team of over 10 people, they provide custom software development, digital strategy, and UX/UI design solutions primarily to enterprise-level clients. They have experience in business and financial services, as well as retail.
Clients
Lloyd's RegisterIndustries
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406$5,000+10 - 49 employeesLondon, EnglandCosonas Ltd, an IT strategy consulting company, is based in London, England. They offer IT strategy consulting, IT staff augmentation, Custom Software Development, Web Development, and more and were founded in 2020.Read More
Industries
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407$5,000+10 - 49 employeesLondon, EnglandLaunched in 2002, zsah Limited is a cloud consulting & SI company. The team offers cloud consulting & SI and BI & big data consulting & SI.Read More
Industries
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408$5,000+10 - 49 employeesLondon, EnglandUnified communications consulting & SI company Content Formula was launched in 2005. The company offers unified communications consulting & SI and Custom Software Development, and is small.Read More
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409$50,000+2 - 9 employeesLondon, EnglandMVR IT Limited, a data analytics company, was launched in 2014. The firm specializes in BI & big data consulting & SI and cloud consulting & SI, and is small.Read More
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410$1,000+10 - 49 employeesLondon, EnglandMacnitech is a cloud consulting & SI company. The company is located in London, England. Their services include cloud consulting & SI and Cybersecurity.Read More
Industries
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411$1,000+2 - 9 employeesLondon, EnglandLittle Big Tech is an IT managed services company. Established in 2021, the agency is headquartered in London, England and Hever, England. Their team offers IT managed services and Cybersecurity.Read More
Industries
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412$5,000+2 - 9 employeesStaines-upon-Thames, EnglandCompliance Consulting company KEW DATA was launched in 2023. They are headquartered in Staines-upon-Thames, England and have a small team. Their services include Compliance Consulting, Internet & Technology Law, and Cybersecurity.Read More
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413Undisclosed250 - 999 employeesLondon, EnglandFounded in 1986, Online Business Systems is a Cybersecurity company. The team specializes in Cybersecurity and IT strategy consulting.Read More
Industries
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414$1,000+10 - 49 employeesStourbridge, EnglandSuperfast IT is a Cybersecurity company. In Stourbridge, England, the agency specializes in Cybersecurity and IT managed services.Read More
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415$10,000+50 - 249 employeesHastings, EnglandA-listware, an IT staff augmentation company, is based in Hastings, England. The midsize company was established in 2017. Their services include IT staff augmentation, IT managed services, Custom Software Development, Web Development, and more.Read More
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416Undisclosed2 - 9 employeesNottingham, EnglandCybersecurity company Collective Security is based in Nottingham, England. Their services include Cybersecurity and other IT consulting and SI.Read More
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417$1,000+10 - 49 employeesGreenford, EnglandIT managed services company Toshost Ltd was launched in 2012. The agency specializes in IT managed services.Read More
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418$25,000+10 - 49 employeesKingston upon Hull, EnglandVivato, a software development company, was launched in 2014. The company specializes in Custom Software Development and CRM consulting and SI.Read More
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419$5,000+10 - 49 employeesEastwood, EnglandReformed IT is an IT managed services company in Eastwood, England. Founded in 2019, the team provides IT managed services and unified communications consulting & SI.Read More
Industries
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420$1,000+10 - 49 employeesSheffield, EnglandLaunched in 2007, One2Call Ltd is a small IT managed services company. Their services include IT managed services and unified communications consulting & SI.Read More
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