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
-
$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
Industries
-
1231$10,000+250 - 999 employeesLondon, EnglandAgencyX is an IT strategy consulting company launched in 2019. The team provides IT strategy consulting and IT staff augmentation and is in London, England.Read More
-
1232$1,000+250 - 999 employeesLondon, EnglandBrightBench, a midsize cloud consulting & SI company, is located in London, England and Lahore, Pakistan. The team offers cloud consulting & SI and Custom Software Development.Read More
-
1233$10,000+10 - 49 employeesLondon, EnglandLaunched in 2022, InnotatzIT Solutions Private Limited is a IT staff augmentation company. Headquartered in Saligao, India; London W2 London W2 6BD, United Kingdom; Kuala Lumpur, Malaysia and Westchester, Illinois, their small team specializes in IT staff augmentation, IT strategy consulting, corporate training, business consulting, and more.Read More
Industries
-
1234$1,000+2 - 9 employeesLondon, EnglandIn London, England and Ho Chi Minh, Vietnam, RISESI Limited - Oracle Services & Personnel is a small IT managed services company. The team focuses on IT managed services and cloud consulting & SI.Read More
-
1235$5,000+50 - 249 employeesLondon, EnglandRead More
Suntel Analytics, LLC is a West Palm Beach, Florida-based AI development company. Launched in 2022, the small team focuses on Artificial Intelligence, business consulting, corporate training, ai consulting, and more.
Industries
-
1236$1,000+50 - 249 employeesCastleford, EnglandRF-SMART is an ERP consulting and SI company established in 1982. Their services include ERP consulting and SI and Mobile App Development.Read More
Clients
Alamo Group -
1237$5,000+50 - 249 employeesNewcastle, Northern IrelandLaunched in 2015, Scott Logic is a midsize Newcastle, Northern Ireland-based software development firm. Their services include Custom Software Development and IT strategy consulting.Read More
-
1238$5,000+50 - 249 employeesSan Francisco, CARead More
RiskIQ is a cybersecurity company based in San Francisco with a team of just over 150 employees. Established in 2009, they provide cybersecurity, business intelligence, big data consulting, and software integration services to clients in a variety of industries.
Clients
AmazonIndustries
-
1239$5,000+250 - 999 employeesLondon, EnglandBased in San Francisco, California and Reston, Virginia, Lookout is a Cybersecurity company. They specialize in Cybersecurity.Read More
Industries
-
1240$5,000+50 - 249 employeesLondon, EnglandIOActive is a Cybersecurity company. Located in Seattle, Washington and London, England, the agency was launched in 1998. Their team focuses on Cybersecurity.Read More
Industries
-
1241$10,000+250 - 999 employeesLondon , EnglandECommera is an e-commerce development firm. Launched in 2007, the company is located in Sofia, Bulgaria and London , England. Their team focuses on E-Commerce Development and cloud consulting & SI.Read More
Industries
-
1242$10,000+250 - 999 employeesCourbevoie, FranceGuidance Software is a Cybersecurity company. Their midsize team is based in Pasadena, California and New York, New York. Their services include Cybersecurity and IT strategy consulting.Read More
Clients
BoxIndustries
-
1243$10,000+1,000 - 9,999 employeesTheale, EnglandRapid7 is a Cybersecurity company. Their large team is in Boston, Massachusetts and Manhattan Beach, California. Their services include Cybersecurity and IT managed services.Read More
Industries
-
1244$10,000+250 - 999 employeesLondon, EnglandCybereason is a Cybersecurity company. They are in Boston, Massachusetts and London, England, and their services include Cybersecurity and BI & big data consulting & SI.Read More
Industries
-
1245$10,000+250 - 999 employeesLondon, EnglandDigital Guardian, a midsize IT managed services company, is in Waltham, Massachusetts and Reston, Virginia. The team specializes in IT managed services and Cybersecurity.Read More
Industries
-
1246$10,000+250 - 999 employeesLondon, EnglandVeracode is a Cybersecurity company located in Burlington, Massachusetts and London, England. They focus on Cybersecurity and Application Testing and were established in 2006.Read More
Industries
-
1247$1,000+250 - 999 employeesWestminster, EnglandNetbooster is a CRM consulting and SI company. Based in Westminster, England, the firm was established in 1998. Their services include CRM consulting and SI and Digital Strategy.Read More
Industries
-
1248$5,000+1,000 - 9,999 employeesBarcelona, SpainFounded in 1971, Merkle is a large CRM consulting and SI company. Their team focuses on CRM consulting and SI and Digital Strategy.Read More
Clients
DellIndustries
-
1249$5,000+10 - 49 employeesHamilton, ScotlandSmall IT managed services and other IT consulting and SI company Provista UK, is in Hamilton, Scotland and Aberdeen City, Scotland. The team offers IT managed services and other IT consulting and SI.Read More
Industries
-
1250$5,000+10 - 49 employeesAldermaston, EnglandIn Aldermaston, England, Voyager Networks is an IT managed services company. Their services include IT managed services and Enterprise App Modernization.Read More
Industries
-
1251$5,000+10 - 49 employeesBletchley, EnglandFounded in 1988, Lynx Networks is a small IT managed services company. Their team focuses on IT managed services.Read More
Industries
-
1252$5,000+10 - 49 employeesDerby, EnglandIn Derby, England and Mumbai, India, Absolute Networks is an IT managed services company. They specialize in IT managed services and cloud consulting & SI.Read More
Industries
-
1253$5,000+50 - 249 employeesBirmingham, EnglandProbrand is an IT managed services company established in 1992. Their team focuses on IT managed services.Read More
Industries
-
1254$5,000+50 - 249 employeesLondon, EnglandBased in London, England, Plan-Net is a midsize IT managed services company. The team offers IT managed services and other IT consulting and SI.Read More
Industries
-
1255$5,000+250 - 999 employeesLondon, EnglandIT Lab, an IT managed services company, was launched in 1998. The team offers IT managed services and other IT consulting and SI and is headquartered in London, England and Woking, England.Read More
Industries
-
1256$5,000+50 - 249 employeesPencoed, WalesRockIT is an IT managed services company. Established in 2008, the team provides IT managed services.Read More
Industries
-
1257$5,000+50 - 249 employeesWymbush, EnglandIT managed services company Mirus IT Solutions is headquartered in Wymbush, England and London, England. Their services include IT managed services and other IT consulting and SI.Read More
Industries
-
1258$5,000+10 - 49 employeesColeshill, EnglandACUTEC is an IT managed services company. In Coleshill, England, the firm focuses on IT managed services and Custom Software Development.Read More
Industries
-
1259$10,000+250 - 999 employeesReading , EnglandLaunched in 2003, Herjavec Group is an IT managed services company. The team provides IT managed services and Cybersecurity.Read More
Industries
-
1260$5,000+50 - 249 employeesGlasgow, ScotlandIomart Group is a cloud consulting & SI company. They offer cloud consulting & SI and IT managed services and were launched in 1998. The company is in Glasgow, Scotland.Read More
Industries
Featured provider
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 6 new reviews
