Top 100 IT Services Companies in the United Kingdom
The Best of October 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
-
1Undisclosed50 - 249 employeesFarnborough, EnglandForesite Cybersecurity is a Cybersecurity company. Their midsize team is based in Overland Park, Kansas and Farnborough, England and specializes in Cybersecurity, Compliance Consulting, cloud consulting & SI, and IT managed services. The agency was launched in 2013.Read More
Industries
-
2$10,000+50 - 249 employeesCoventry , EnglandIn 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
-
3$5,000+10 - 49 employeesEdinburgh, ScotlandEstablished in 2012, Texaport is an IT managed services company. The small team focuses on IT managed services, cloud consulting & SI, Cybersecurity, IT strategy consulting, and more. The firm is in Edinburgh, Scotland; Glasgow, Scotland; London, England and Manchester, England.Read More
Industries
-
4$5,000+50 - 249 employeesLondon, EnglandCloudMasonry is a CRM consulting and SI company. They are based in Indianapolis, Indiana; Chicago, Illinois and London, England and have a midsize team. Their services include CRM consulting and SI. The firm was founded in 2018.Read More
Industries
-
5$75,000+1,000 - 9,999 employeesLondon, EnglandLaunched in 2000, NashTech is a custom software development firm. They are headquartered in London, England; Palatine, Illinois; North Balgowlah, Australia and Thành phố Hồ Chí Minh, Vietnam and have a large team. The firm provides Custom Software Development, cloud consulting & SI, Generative AI, Digital Engineering, and more.Read More
Industries
-
6$50,000+1,000 - 9,999 employeesLondon, EnglandAI firm ZONE3000 was launched in 1998. They are in London, England; Dubai, United Arab Emirates and L'viv, Ukraine and have a large team. ZONE3000 provides Artificial Intelligence, BI & big data consulting & SI, and IT staff augmentation.Read More
Clients
Dynamiq xFusion CX Design CivittaIndustries
-
7$10,000+250 - 999 employeesCoventry, EnglandSDLC Corp is an AI development company. The Dubai, United Arab Emirates-based agency was launched in 2015. The midsize team focuses on Artificial Intelligence, Web Development, ERP consulting and SI, Custom Software Development, and more.Read More
Industries
-
8$5,000+50 - 249 employeesLondon, EnglandMagicFuse is a London, England-based CRM consulting and SI company. The firm provides CRM consulting and SI and Custom Software Development and is midsize.The firm was launched in 2019.Read More
Industries
-
9$25,000+50 - 249 employeesReigate, EnglandOpus Technology is a midsize Reigate, England-based IT managed services company. They specialize in IT managed services, Call Center Services, and Cybersecurity and were established in 1992.Read More
Clients
Which? The consumer champion All Saints Fred Olsen Dignity Funerals PLCIndustries
-
10$25,000+250 - 999 employeesLondon, EnglandEstablished in 2000, Future Processing is a custom software development company. The midsize team provides Custom Software Development, cloud consulting & SI, AI Consulting, Artificial Intelligence, and more. The agency is based in Gliwice, Poland; Ternopil, Ukraine; London, England and Düsseldorf, Germany.Read More
Clients
AllocateIndustries
-
11$25,000+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
-
12$10,000+50 - 249 employeesLondon, EnglandAlphaBOLD, a midsize CRM consulting and SI company, is headquartered in Carlsbad, California and London, England. Founded in 2017, the team focuses on CRM consulting and SI, ERP consulting and SI, BI & big data consulting & SI, Custom Software Development, and more.Read More
Clients
MechCo Group LLC Green Project Technologies TaylorMade Golf MechCo Group LLCIndustries
-
13$50,000+10,000+ employeesLondon, EnglandAI Consulting company Virtusa was launched in 1993. They are in Southborough, Massachusetts; New York, New York; London, England and Hyderabad, India and have a large team. Their services include AI Consulting, Artificial Intelligence, AI Agents, BI & big data consulting & SI, and more.Read More
Clients
PegasystemsIndustries
-
14$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
-
15$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
-
16$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
-
17$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
-
18$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
-
19$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
Industries
-
20$50,000+1,000 - 9,999 employeesLondon, EnglandLocated in Warszawa, Poland; Kraków, Poland; Dallas, Texas and London, England, Andersen Inc. Is a software development company. The large company was launched in 2007. Their team specializes in Custom Software Development, IT strategy consulting, IT managed services, Artificial Intelligence, and more.Read More
Clients
SamsungIndustries
-
21$100,000+1,000 - 9,999 employeesLondon, EnglandN-iX is a business intelligence company. The large North Miami Beach, Florida-based team offers BI & big data consulting & SI, Artificial Intelligence, Custom Software Development, cloud consulting & SI, and more. The agency was founded in 2002.Read More
Clients
Bosch Siemens eBay Total EnergiesIndustries
-
22Undisclosed50 - 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
-
23$50,000+1,000 - 9,999 employeesLondon, EnglandVention is an artificial intelligence firm. Founded in 2002, the company is based in New York, New York; London, England; Marietta, Georgia and San Francisco, California. The large team focuses on Artificial Intelligence, Custom Software Development, Enterprise App Modernization, cloud consulting & SI, and more.Read More
Clients
IBM PayPal pwc IC MarketsIndustries
-
24$5,000+50 - 249 employeesScunthorpe, EnglandThe HBP Group is an IT managed services company. They focus on IT managed services, IT strategy consulting, and Cybersecurity and were founded in 1991. Their midsize team is Scunthorpe, England-based.Read More
Clients
R&G Fluid Power Group BetterYou Black Onyx Concepts GCH CorporationIndustries
-
25Undisclosed250 - 999 employeesLondon, EnglandTransparity is a software development company. The London, England-based firm was founded in 2015. The midsize team focuses on Custom Software Development, Enterprise App Modernization, Artificial Intelligence, IT managed services, and more.Read More
Clients
Apex NSPCC NHS LushIndustries
-
26$50,000+250 - 999 employeesLondon, EnglandInfinum, a custom software development company, was established in 2005. They are in New York, New York; San Francisco, California; Zagreb, Croatia and Ljubljana, Slovenia and have a midsize team. Their services include Custom Software Development, Web Development, Mobile App Development, UX/UI Design, and more.Read More
Clients
PhilipsIndustries
-
27$25,000+1,000 - 9,999 employeesLondon, EnglandItransition is a large ERP consulting and SI company established in 1998. Their services include ERP consulting and SI, Custom Software Development, CRM consulting and SI, Artificial Intelligence, and more. The agency is based in Decatur, Georgia; London, England; Vilnius, Lithuania and Warszawa, Poland.Read More
Clients
ExpediaIndustries
-
28$5,000+10 - 49 employeesMarket Deeping, EnglandSecret Source is a CRM consulting and SI company founded in 2015. Their small team is in Market Deeping, England and Thousand Oaks, California. Their services include CRM consulting and SI.Read More
Industries
-
29$100,000+1,000 - 9,999 employeesLondon, EnglandRead 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
-
30$1,000+10 - 49 employeesLondon, EnglandPixcell.io | HubSpot RevOps & AI Consultancy UK 🇬🇧 is a small CRM consulting and SI company. The London, England-based firm was established in 2022. Their services include CRM consulting and SI.Read More
Clients
Bioniq - Health - www.bioniq.com Xapien - SaaS - www.xapien.com Intruder - SaaS - www.intruder.io GrainPro - Food Production - www.grainpro.comIndustries
Get connected with a company for free
Tell us about your project, and we'll match you with vetted companies that meet your requirements.
Get connected with the right company for you
We'll do the work for you – finding and connecting you with service providers that meet your exact requirements.
Schedule ConsultationMost Reviewed IT Services Company in United Kingdom
Check out an IT Services Company in United Kingdom with the most new reviews in the past 12 months.
Most Reviewed
IT Services Company
United Kingdom
- 11 6 new reviews
- 12 6 new reviews
- 13 6 new reviews
- 14 6 new reviews
- 15 5 new reviews
