Top 100 IT Services Companies in the United Kingdom
The Best of December 2025List 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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1$25,000+250 - 999 employeesLondon, EnglandRead More
Future Processing, a software development firm, was founded in 2000. They are based in Gliwice, Poland; Ternopil, Ukraine; London, England and Düsseldorf, Germany and have a midsize team. Future Processing provides Custom Software Development, cloud consulting & SI, BI & big data consulting & SI, Web Development, and more.
Clients
AllocateIndustries
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2$50,000+1,000 - 9,999 employeesLondon, EnglandRead More
Andersen Inc. Is a software development company based in Warszawa, Poland; Kraków, Poland; Dallas, Texas and London, England. The large team provides Custom Software Development, IT managed services, Mobile App Development, IT strategy consulting, and more. The agency was established in 2007.
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SamsungIndustries
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3$1,000+1,000 - 9,999 employeesLondon, EnglandRead More
Dotsquares is an IT managed services company in London, England; Mount Waverley, Australia; Albourne, England and Jaipur, India. The firm specializes in IT managed services, Web Development, Custom Software Development, Mobile App Development, and more and has a large team.The firm was founded in 2002.
Clients
EricssonIndustries
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4$25,000+50 - 249 employeesSalford, EnglandIn Salford, England; London, England and Houston, Texas, Digiryte is a cloud consulting & SI company. They focus on cloud consulting & SI, Mobile App Development, Custom Software Development, Digital Strategy, and more and were founded in 2016.Read More
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NHSIndustries
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5Undisclosed50 - 249 employeesFarnborough, EnglandRead More
Midsize Cybersecurity company Foresite Cybersecurity, is located in Overland Park, Kansas and Farnborough, England. Established in 2013, the team provides Cybersecurity, Compliance Consulting, cloud consulting & SI, and IT managed services.
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6$10,000+250 - 999 employeesLondon, EnglandRead More
Founded in 2015, Transparity is a cloud consulting & SI company. The midsize London, England-based team offers cloud consulting & SI, IT managed services, Custom Software Development, Artificial Intelligence, and more.
Clients
Apex NSPCC NHS LushIndustries
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7$100,000+1,000 - 9,999 employeesWrocław, PolandN-iX, a big data analytics company, was founded in 2002. In North Miami Beach, Florida; Malmö, Sweden; North Miami Beach, Florida and Kraków, Poland, their large team provides BI & big data consulting & SI, Artificial Intelligence, Custom Software Development, cloud consulting & SI, and more.Read More
Clients
Bosch Siemens eBay Total EnergiesIndustries
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8$25,000+1,000 - 9,999 employeesLondon, EnglandRead More
ELEKS is a custom software development firm established in 1991. Their large team is in Tallinn, Estonia; L'viv, Ukraine; Berlin, Germany and Rzeszów, Poland. Their services include Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, Cybersecurity, and more.
Clients
BNY Mellon DPD Acino DRAXIndustries
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9$50,000+250 - 999 employeesLondon, EnglandRead More
Opinov8 Digital and Engineering Solutions is a cloud consulting & SI company launched in 2017. The firm provides cloud consulting & SI, IT staff augmentation, BI & big data consulting & SI, Custom Software Development, and more and has a midsize team. The firm is located in London, England; Kyiv, Ukraine; Cairo, Egypt and Weybridge, England.
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Fortune 500 CompaniesIndustries
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10$25,000+1,000 - 9,999 employeesLondon, EnglandItransition, a software development company, was founded in 1998. They are headquartered in Denver, Colorado; London, England; Vilnius, Lithuania and Warszawa, Poland and have a large team. Their services include Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, ERP consulting and SI, and more.Read More
Clients
ExpediaIndustries
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11$10,000+50 - 249 employeesSaint Helier, JerseyIn Saint Helier, Jersey; St Peter Port, Guernsey; Coventry , United Kingdom and Leicester , United Kingdom, Calligo is a cloud consulting & SI company. They offer cloud consulting & SI, Artificial Intelligence, and BI & big data consulting & SI and were established in 2010.Read More
Clients
MicrosoftIndustries
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12$5,000+10 - 49 employeesEdinburgh, ScotlandLaunched in 2012, Texaport is an IT managed services company. The small team provides IT managed services, Cybersecurity, cloud consulting & SI, IT strategy consulting, and more. The firm is headquartered in Edinburgh, Scotland; Glasgow, Scotland; London, England and Manchester, England.Read More
Industries
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13$75,000+1,000 - 9,999 employeesLondon, EnglandNashTech is a large software development company. The London, England-based company was established in 2000. Their services include Custom Software Development, cloud consulting & SI, Generative AI, Digital Engineering, and more.Read More
Industries
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14$5,000+50 - 249 employeesLondon, EnglandLocated in London, England and Düsseldorf, Germany, Transputec Ltd is a Cybersecurity company. The midsize agency was launched in 1986. Their services include Cybersecurity, IT managed services, Artificial Intelligence, cloud consulting & SI, and more.Read More
Industries
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15$100,000+1,000 - 9,999 employeesLisboa, PortugalRead More
CI&T (formerly CINQ Technologies) is software development company based in Curitiba, Brazil with additional offices in Brazil and Miami. Founded in 1992, the team of 271 specializes in custom software development, IT staff augmentation, and UX/UI design. They work primarily with enterprise clients in the transportation and financial services industries.
Clients
SITAIndustries
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16$5,000+50 - 249 employeesLondon, EnglandRead More
Founded in 2019, MagicFuse is a midsize CRM consulting and SI company. Their services include CRM consulting and SI and Custom Software Development. The agency is headquartered in London, England and L'viv, Ukraine.
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17$5,000+1,000 - 9,999 employeesSt Albans, EnglandFCamara is an user experience agency. Their large team is in São Paulo, Brazil; Leiria, Portugal; St Albans, England and Dubai, United Arab Emirates. Their services include UX/UI Design, IT strategy consulting, cloud consulting & SI, IT staff augmentation, and more. The firm was founded in 2006.Read More
Clients
Farfetch IPSOS Elfa Group BTG PactualIndustries
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18$25,000+250 - 999 employeesLondon, EnglandSTX Next is an AI firm established in 2005. The company focuses on Artificial Intelligence, BI & big data consulting & SI, Custom Software Development, Web Development, and more and has a midsize team.Read More
Clients
Mastercard Canon Hogarth ManIndustries
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19$50,000+250 - 999 employeesLondon, EnglandLaunched in 2006, SPD Technology is a software development company. Their midsize team is located in London, England; Kyiv, Ukraine; București, Romania and Aradippou, Cyprus. Their team offers Custom Software Development, Artificial Intelligence, and IT managed services.Read More
Clients
PitchBook GoDaddy Roche MorningstarIndustries
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20$1,000+10 - 49 employeesBradford on Avon, EnglandRead More
Established in 1999, Systemagic Ltd is an IT managed services company. The firm offers IT managed services, cloud consulting & SI, cybersecurity, and IT strategy consulting and has a small team. The firm is located in Bradford on Avon, United Kingdom and London, United Kingdom.
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21$25,000+1,000 - 9,999 employeesLondon, EnglandRead More
Keyrus is a digital consulting agency that has been offering BI and Big Data consulting, IT strategy consulting, Cloud consulting, and SI services to their clients in the retail, business services, and financial services industries since 1996. Their 10,000 employees are based out of their offices in London, NYC, LA, D.C., France, and Toronto.
Clients
DannonIndustries
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22$50,000+50 - 249 employeesBelfast, Northern IrelandRead More
Instil Software is a software engineering firm based in Belfast, Northern Ireland. Founded in 2005, Instil has about 30 employees that work across a variety of industries. They offer custom software development, mobile app development, cloud consulting and software integration, IoT, and web development.
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23$5,000+250 - 999 employeesLondon, EnglandRead More
Coders Dev is a web design and mobile app development company based in London with offices in Singapore and Abu Dhabi, U.A.E. The company, founded in 2010, has more than 500 employees and provides web development and AI services. Coders Dev serves small and larger-sized companies in the health care & medical, hospitality & leisure, consumer products & services, financial services, gaming, telecommunications, automotive, manufacturing, and e-commerce industries.
Clients
British TelecomIndustries
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24$5,000+10 - 49 employeesClayton-le-Woods, EnglandHeadquartered in Clayton-le-Woods, England, FluidOne - Chorley is an IT managed services company. Founded in 2001, the small team offers IT managed services, IT strategy consulting, and Cybersecurity.Read More
Industries
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25Undisclosed1,000 - 9,999 employeesLondon, EnglandHeadquartered in Dubai, United Arab Emirates; L'viv, Ukraine and London, England, ZONE3000 is an AI company. Founded in 1998, the large team provides Artificial Intelligence, BI & big data consulting & SI, and IT staff augmentation.Read More
Industries
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26$1,000+10 - 49 employeesHildenborough, EnglandRSK Cyber Security is a Cybersecurity company launched in 2021. The small Hildenborough, England-based team specializes in Cybersecurity, Application Testing, and cloud consulting & SI.Read More
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27$100,000+1,000 - 9,999 employeesNew York, NYSoftware development firm DataArt is located in New York, New York; Zug, Switzerland; London , England and München, Germany. Established in 1997, the large team provides Custom Software Development, IoT development, Artificial Intelligence, BI & big data consulting & SI, and more.Read More
Clients
Ocado Technology Metro Markets Nasdaq InvescoIndustries
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28Undisclosed50 - 249 employeesLondon, EnglandAbacus Cambridge Partners, an ERP consulting and SI company, is based in London, England; Dubai, United Arab Emirates; Riyadh, Saudi Arabia and New York, New York. They focus on ERP consulting and SI, BI & big data consulting & SI, Custom Software Development, Call Center Services, and more and were founded in 2017.Read More
Clients
Hafilat Industry LLCIndustries
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29$25,000+250 - 999 employeesLondon, EnglandSoftware development company Computools is in New York, New York; London, England; Oslo, Norway and Linz, Austria. The midsize team focuses on Custom Software Development, IT managed services, Mobile App Development, IT strategy consulting, and more. The firm was established in 2013.Read More
Clients
Visa Epson IBM DiorIndustries
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30$50,000+250 - 999 employeesFarnborough, EnglandOne Beyond is an UX design company. Their midsize team is headquartered in Farnborough, England; Madrid, Spain; Budapest, Hungary and Szeged, Hungary. The firm focuses on UX/UI Design, IT strategy consulting, cloud consulting & SI, IT staff augmentation, and more.Read More
Clients
Smith & NephewIndustries
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