Top 100 Systems Integrator Companies in the United Kingdom

IT managed services company Equinix EMEA is based in Redwood City, California and London, United Kingdom. The company specializes in IT managed services, IT strategy consulting, and cloud consulting & SI and is midsize.The company was founded in 1998.

Telia Carrier, a midsize IT managed services company, is in London, United Kingdom. The team specializes in IT managed services, IT strategy consulting, and cloud consulting & SI.

IT managed services company 451 Research was founded in 2000. The company provides IT managed services, IT strategy consulting, and cloud consulting & SI and has a midsize team.

Headquartered in Rochdale, United Kingdom, Zen Internet is an IT managed services company. The midsize team focuses on IT managed services, IT strategy consulting, and cloud consulting & SI. The company was founded in 1995.

Cadastra is a digital strategy company based in São Paulo, Brazil; Porto Alegre, Brazil and London, United Kingdom. Founded in 2000, the midsize team provides digital strategy, business consulting, search engine optimization, BI & big data consulting & SI, and more.

Specializing in custom software and mobile app development, the 666 employees of DVT Johannesburg provide digital solutions for global clients. Testing and DevOps are also part of the Johannesburg-based team's portfolio. The firm has been in business since 1999.  

Brierley, a marketing strategy company, was founded in 1985. The midsize team offers marketing strategy, CRM consulting and SI, market research, mobile & app marketing, and more. The company is in Frisco, Texas; London, United Kingdom and Chiyoda City, Japan.

Gap Dynamics is a website development company. Founded in 2020, the midsize firm is located in Düsseldorf, Germany. Their services include web development, mobile app development, e-commerce development, digital strategy, and more.

Software Country, an user experience company, is headquartered in Plymouth Meeting, Pennsylvania; London, United Kingdom; Tallinn, Estonia and Beograd, Serbia. The midsize team provides ux/ui design, IT strategy consulting, CRM consulting and SI, custom software development, and more. The agency was founded in 1993.

Midsize marketing strategy company Wunderman Thompson MAP, is in København, Denmark; Bangkok, Thailand; Barcelona, Spain and Lisboa, Portugal. The team focuses on marketing strategy, social media marketing, search engine optimization, CRM consulting and SI, and more.

UX design agency Avensia, Inc. Was established in 1998. They are located in Lund, Sweden; London, United Kingdom; Oslo, Norway and Chicago, Illinois and have a midsize team. Avensia, Inc. Provides ux/ui design, IT strategy consulting, CRM consulting and SI, IT managed services, and more.

CloudEQ, an IT strategy consulting company, is in Novi, Michigan; El Segundo, California; Chicago, Illinois and Atlanta, Georgia. Launched in 2019, the midsize team provides IT strategy consulting, cloud consulting & SI, IT managed services, mobile app development, and more.

Emixa is an IT strategy consulting company. They specialize in IT strategy consulting, BI & big data consulting & SI, ERP consulting and SI, IoT development, and more and were founded in 2022. Their midsize team is headquartered in Naarden, Netherlands and City of London, United Kingdom.

Adarma Security, a cybersecurity company, is located in Edinburgh, United Kingdom and City of London, United Kingdom. They focus on cybersecurity, BI & big data consulting & SI, and business valuation services and were launched in 2009.

Zenith Business Solutions is a midsize digital strategy company. They provide digital strategy, IT strategy consulting, BI & big data consulting & SI, cybersecurity, and more and were launched in 2010. The company is based in Al Kuwayt, Kuwait; Hyderabad, India; London, England and Dubai, United Arab Emirates.

Alcor Solutions, Inc. Is an IT strategy consulting company. Their midsize team is headquartered in London, England; Dublin, California and Toronto, Canada. The company offers IT strategy consulting, cloud consulting & SI, mobile app development, ux/ui design, and more.

Insead Tech, a midsize e-commerce development company, is located in London, England. Their services include e-commerce development, ERP consulting and SI, web development, social media marketing, and more.

Midsize compliance consulting company Netwrix Corporation, is in Frisco, Texas and City of London, England. They provide compliance consulting, IT strategy consulting, and cybersecurity and were founded in 2006.

Computer Care, a IT strategy consulting company, is located in Leatherhead, United Kingdom. The small team focuses on IT strategy consulting, cloud consulting & SI, cybersecurity, and IT managed services and was established in 2001.

RF-Smart is a mobile software development company founded in 1982. Since then, the company has grown to around 140 employees across 3 locations. It's headquartered in Jacksonville, Fla., and has offices in Highlands Ranch, Colo., and Castleford, United Kingdom. RF-Smart specializes in mobile app development and enterprise resource planning & sales intelligence.

Based in Nürnberg, Germany; São Paulo, Brazil; Palo Alto, California and London, United Kingdom, EXASOL AG is a business intelligence company. The company specializes in BI & big data consulting & SI and is midsize.The company was founded in 2000.

Circle IT, an IT managed services company, was established in 2002. The midsize team provides IT managed services, other IT consulting and SI, and cybersecurity. The company is based in Cardiff, United Kingdom.

Iomart Group, a cloud consulting & SI company, was established in 1998. The firm focuses on cloud consulting & SI, IT managed services, and IT strategy consulting and has a midsize team.

IT managed services company Acora is headquartered in Burgess Hill, United Kingdom; Shirley, United Kingdom and London, United Kingdom. They offer IT managed services and ERP consulting and SI and were founded in 1989.

Agilitas IT Solutions is a Nottingham, United Kingdom-based IT managed services and other IT consulting and SI company. The midsize company was launched in 1990. Their team specializes in IT managed services and other IT consulting and SI.

AIMES Grid Services CIC is an IT managed services company. They are based in Liverpool, United Kingdom and have a midsize team. Their team offers IT managed services and cloud consulting & SI.

Founded in 2011, Aquila Insight is a business intelligence company. Their midsize team is in Edinburgh, United Kingdom and London, United Kingdom. Their services include BI & big data consulting & SI, digital strategy, and IT strategy consulting.

OnApp is a cloud consulting & SI and IT managed services company launched in 2010. The midsize team specializes in cloud consulting & SI and IT managed services. The company is based in London, United Kingdom and , Ukraine.

Based in London, United Kingdom, The Berkeley Partnership is a big data company. The midsize company was founded in 1990. Their team focuses on BI & big data consulting & SI, digital strategy, IT strategy consulting, and HR services.

Dufrain is a business intelligence company headquartered in Edinburgh, United Kingdom; London, United Kingdom; Manchester, United Kingdom and Dublin, United Kingdom. The midsize team offers BI & big data consulting & SI and was launched in 2010.