Best IT Services Companies in London, United Kingdom
The 759 best IT Services companies in London, United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Global Switch.
Ranked: Best IT Services companies in London
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Tech stack | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Global Switch Provider of IT infrastructure services | $4.9B | 82 mo ago | 94 | 1998 | John Corcoran CEO | WordPressApple iCloud MailMySQL+18 | 1 partnership |
| 2 | Labyrinth Drives Provider of network security services | $1.9B | 69 mo ago | — | 2019 | Krzysztof Plaza CEO | — | — |
| 3 | Endava Provider of digital transformation services using artificial intelligence and automation | $253M | 53 mo ago | 11,853 11,853 → 9,557 (-19%) | 2000 | — | HubSpot CMS HubApple iCloud MailMicrosoft 365+15 | — |
| 4 | Shop Circle AI-first technology holding company that acquires and scales mission-critical software, modernising it for… | $158M | 6 mo ago | 9 | 2021 | Gian Gramondi Co-Founder | Cart FunctionalityShopifyBootstrap+23 | — |
| 5 | QualiTest 🦄 Provider of software testing services | $137M | 62 mo ago | 2,132 | 1997 | Eli Margolin Co-Founder & CTO | WordPressMySQLPHP+41 | — |
| 6 | Contino Services related to the implementation of CD/CI tools in enterprises | $98M | 93 mo ago | 421 | 2013 | — | SanityApple iCloud MailGoogle Workspace+11 | — |
| 7 | JMAN Group Provider of IT consulting services | $80M | 37 mo ago | 121 | 2010 | Michael Leovalan Co-Founder & CTO | WordPressZohoMySQL+30 | 1 partnership · 1 award |
| 8 | mthree Provider of recruitment services | $58M | 93 mo ago | 214 | 2010 | — | ProcessWireApple iCloud MailMicrosoft 365+20 | — |
| 9 | TPXimpact Provider of digital transformation services for public and health sectors | $35M | 45 mo ago | 86 | 2016 | Antony Heljula Director of Innovation | Apple iCloud MailGoogle WorkspaceMicrosoft ASP.NET+19 | 1 partnership · 1 award |
| 10 | UENI Provider of website development services | $31M | 80 mo ago | 51 | 2014 | Christine Telyan Co-Founder | WebflowBootstrapstyled-components+21 | 2 job openings |
| 11 | Mesh-AI Provides AI development, machine learning, automation, and other services | $30M | 56 mo ago | 43 43 → 24 (-44%) | 2021 | — | WebflowApple iCloud MailGoogle Workspace+17 | — |
| 12 | Future Thinking Provider of data analytics services | $27M | 82 mo ago | 9 | 2015 | Adele Gritten CEO | — | — |
| 13 | Cynomi Provides a range of cyber security services | $24M | 14 mo ago | 4 | 2019 | David Primor Co-Founder & CEO | WordPressApple iCloud MailMicrosoft 365+28 | 2 launchs |
| 14 | Kin + Carta Provider of IT service suite solutions | $23M | 49 mo ago | 1,854 | 1981 | Kelly Manthey CEO | — | — |
| 15 | Kocho Provider of Microsoft-centric identity, security, and cloud solutions 45News top 30%Partners top 40%Tech top 45%Fin. health top 46% All 9 signals ▾Newstop 30% Partnerstop 40% Techtop 45% Fin. healthtop 46% Fundingtop 47% Markettop 50% Talentbottom 49% Globalbottom 37% Growthbottom 35% News: 4 BI events in 12 mo (of 7 tracked, 3 types) · Top themes: Contracts, Leadership Partners: 2 contract events in 12 mo · Named contractor/client in 2 deals rank vs industry peers · Fliar Intelligence Index 45/100 | $19M | 63 mo ago | 260 | 2001 | Des Lekerman CEO | WordPressMySQLRedis+22 | 1 award |
| 16 | Hofy Provider of IT support services | $15M | 56 mo ago | 5 | 2020 | Michael Ginzo Co-founder and CPO | WebflowApple iCloud MailGoogle Workspace+23 | — |
| 17 | Devtech Services related to cloud migration, integration and advisory for cloud transformation | $13M | 47 mo ago | 200 | 2012 | — | WordPressApple iCloud MailMySQL+28 | 1 award |
| 18 | Skillvest Limited information available | $13M | 315 mo ago | — | 1999 | Jacintha Peeris Founder & CEO | — | — |
| 19 | Over-C Big data analytics for business operations | $13M | 39 mo ago | 9 | 2011 | — | WordPressApple iCloud MailMicrosoft 365+27 | — |
| 20 | Nash Squared Provider of IT consulting & services | $13M | 28 mo ago | 3,300 | 1988 | — | WebflowTypekitGoogle Font API+12 | — |
| 21 | Crossword Cybersecurity Product commercialisation solution provider for cybersecurity technology | $12M | 45 mo ago | 51 | 2014 | Tom Ilube CEO/Founder | — | — |
| 22 | Lightworks Provider of strategic enterprise services for regulated AI, cloud, and data | $12M | 4 mo ago | — | 1989 | John Painter Founder & CEO | — | 1 expansion |
| 23 | Somo Provider of UI/UX design, mobile application development, content marketing, and brand strategy services | $10M | 121 mo ago | 106 | 2009 | Daniel Mohacek Managing Director | — | — |
| 24 | ControlCircle Data center and internet managed services | $9M | 195 mo ago | 98 | 2001 | — | — | — |
| 25 | babble Business communication, managed IT, cloud contact center, and call management services provider | $9M | 138 mo ago | 337 | 2001 | — | WordPress Block EditorwpBakeryWordPress+39 | — |
| 26 | Bloop Provider of AI based code completion software | $7M | 54 mo ago | 3 | 2021 | Gabriel Gordon-Hall Co-Founder | Node.jsHeadless UITailwind CSS+14 | — |
| 27 | KOPE Provider of cloud-based designing tool for the construction industry | $7M | 29 mo ago | 10 | 2019 | Mark Thorley Co-Founder and CEO | TypeScriptGraphQLWindows Server+11 | — |
| 28 | Big Data Partnership Big Data services and consultancy | $7M | 133 mo ago | 57 | 2012 | — | — | — |
| 29 | Deazy Offers application development services | $7M | 52 mo ago | 6 | 2012 | — | HubSpot CMS HubApple iCloud MailGoogle Workspace+29 | — |
| 30 | Secretarium Application offering confidential computing solutions | $7M | 51 mo ago | 11 | 2013 | Cedric Wahl Co-Founder | — | — |
| 31 | PlayJam Publishing and technology provider for gaming industry | $6M | 123 mo ago | 1 | 1999 | — | — | — |
| 32 | Sparta Global Provider of technology talent through training and deployment | $5M | 73 mo ago | 859 859 → 568 (-34%) | 2013 | — | ProcessWirePHPBootstrap+19 | — |
| 33 | Plandek Provider of application development, devops and data analytics services | $5M | 44 mo ago | 28 28 → 63 (+125%) | 2017 | — | WordPressMySQLPHP+28 | 1 award |
| 34 | Vaire Computing Provider of cloud computing services | $4M | 23 mo ago | — | 2021 | Rodolfo Rosini Co-Founder & CEO | Craft CMSPleskPHP+9 | 1 award |
| 35 | Hexens Provider of cybersecurity and blockchain technology services | $4M | 44 mo ago | 29 | 2021 | Sipan Vardanyan Co-Founder & CEO | TurbopackNode.jsReact+13 | 1 job opening · 1 launch · 1 partnership |
| 36 | Grasp Developer of an adaptive learning platform for complex subjects | $4M | 34 mo ago | 4 | 2022 | Jacob Sidorov Co-Founder | — | — |
| 37 | USIO Services related to the development of UX/UI for enterprises | $4M | 55 mo ago | 108 | 1998 | — | WordPressTypeScriptPHP+42 | — |
| 38 | eXate Provider of data access management, privacy, and data sovereignty solutions | $3M | 66 mo ago | 4 | 2015 | Sonal Rattan Co-founder and CTO at eXate | WixSentryBootstrap+11 | — |
| 39 | Say It Now Provides IT services suite | $3M | 24 mo ago | 22 | 2018 | — | WordPress Block EditorWordPressMySQL+19 | — |
| 40 | Deverium Provider of mobile application, software, and devops development services | $2M | 21 mo ago | — | 2019 | Erika Maslauskaite CEO & Co-Founder | — | — |
| 41 | Ciklum Software development and data analytics company | $2M | 65 mo ago | 3,200 | 2002 | Raj Radhakrishnan CEO | WordPressMySQLSalesforce+29 | — |
| 42 | Atman Labs Applied AI research laboratory specializing in building, designing, and researching the frontier of AI-agent… | $2M | 31 mo ago | — | 2023 | Shravan Nageswaran Co-Founder | — | — |
| 43 | Niya Provider of cloud solutions, data base, software development, and other services | $1M | 24 mo ago | 19 | 2020 | — | AlgoliaNode.jsBubble+16 | — |
| 44 | Catalysis Provider of onchain programmable protection for onchain markets 55Growth top 35%Global top 45%Tech bottom 49%Talent bottom 45% All 5 signals ▾Growthtop 35% Globaltop 45% Techbottom 49% Talentbottom 45% Fundingbottom 38% Growth: Fresh capital in last 24 mo Global: Investors from 3 countries beyond United Kingdom rank vs industry peers · Fliar Intelligence Index 55/100 | $1M | 14 mo ago | — | 2023 | Abhishek Kumar Founder | Framer SitesReactstyled-components+6 | — |
| 45 | Elemendar Provider of cybersecurity services | $1M | 38 mo ago | 7 | 2017 | Devon Barrett Co-Founder | — | — |
| 46 | Legit Provider of software development services | $717K | 21 mo ago | — | 2017 | Drazen Orescanin Co-Founder | — | — |
| 47 | Exponential e Business communication and cloud services provider | $522K | 48 mo ago | 644 | 2002 | — | JoomlaSentryAwesomplete+27 | 1 partnership · 1 award |
| 48 | Spendkey Cloud-based expense and financial management platform | $452K | 37 mo ago | — | 2019 | Shashikant Mundlik Co-Founder | Webflow EcommerceWebflowVimeo+20 | — |
| 49 | EXO Labs Provider of IT services | $250K | 24 mo ago | — | 2024 | Mohamed Baioumy Co-Founder | Node.jsRadix UITailwind CSS+11 | — |
| 50 | Anzen Technology Systems Provider of data security and cloud services | $127K | 24 mo ago | 5 | 2016 | Hoon-Ywen Li CEO | — | — |
Top 12 IT Services companies in London
#1
Series B · London, England · founded 2021 · 9 employees$158.4Mraised▾
AI-first technology holding company that acquires and scales mission-critical software, modernising it for the AI era. Through a centralised AI platform deployed across its portfolio, the company expands software from systems of record into systems of action. It focuses on software powering the physical world, characterised by high retention, multi-year contracts, and significant switching costs, with a portfolio serving companies worldwide.
- Dec 2025Venture Debt$100M
- Feb 2025Series B$60M
- Oct 2023Series A$2.1M
- Sep 2023Venture Debt—
#2
Series B · London, England · founded 1989$12Mraised▾
Provider of strategic enterprise services for regulated AI, cloud, and data. The company enables enterprises to execute AI deployments and scale complex migration and modernization initiatives. Services include agentic control plane enablement, CTO support, managed currency, migration and modernization, and SaaS enablement.
- Feb 2026Series B$12M
#3
Series B · London, England · founded 2019 · 4 employees$23.5Mraised▾
Provides a range of cyber security services
- Apr 2025Series B$37M
- Apr 2024Series A$20M
- Feb 2022Grant (prize money)$500K
- Feb 2022Seed$3.5M
#4
Acquired · London, England · founded 1998 · 94 employees$4.9Braised▾
Global Switch is a leading provider of large-scale, network-dense data centers in Europe and Asia-Pacific, offering carrier and cloud-neutral solutions to multiple customers. The company owns and operates multiple data centers across key cities, providing high-power density and connectivity options. With a focus on providing secure and reliable infrastructure, Global Switch serves a range of industries, including cloud, colocation, and enterprise customers.
- Aug 2019PE$2.2B
- Jul 2018PE$2.8B
- Jun 2017Conventional Debt$559.7M
- Feb 2017Conventional Debt$528.9M
#5
Seed · London, England · founded 2023$1.2Mraised▾
Provider of onchain programmable protection for onchain markets. It offers protection capacity backed by restaked digital assets for institutional decentralized finance. The company provides institution-first design with legally enforceable and compliance-forward contracts. Smart contracts handle dynamic pricing, automated evaluation, and fast disbursements.
- Apr 2025Seed$1.2M
#6
Series D · London, England · founded 2019$1.9Braised▾
Provider of network security services
- Sep 2020Series D$994.7M
- May 2020Series D$924.8M
#7
Seed · London, England · founded 2021$4.5Mraised▾
Provider of cloud computing services
- Jul 2024Seed$4M
#8
Seed · London, England · founded 2018 · 22 employees$2.6Mraised▾
Provides IT services suite
- Jun 2024Seed$163.5K
- Apr 2024Seed$107.2K
- Jan 2024Seed$774.4K
- Nov 2021Seed$1.3M
#9
Seed · London, England · founded 2019$2.2Mraised▾
Provider of mobile application, software, and devops development services
- Sep 2024Seed$2.2M
#10
Late Stage · London, England · founded 2010 · 121 employees$79.6Mraised▾
Provider of IT consulting services
- May 2023PE$79.6M
#11
Public · London, England · founded 2000 · 11853 employees$252.8Mraised▾
Provider of digital transformation services using artificial intelligence and automation. Services include software engineering, core system modernization, and cloud infrastructure implementation. Technical teams integrate data analytics and intelligent automation to build digital products and infrastructure for various business sectors. The focus remains on technical execution and the deployment of software solutions to support organizational operations.
- Jan 2022PE—
- Dec 2020Grant (prize money)$33.4K
- Oct 2019Conventional Debt$252.8M
#12
Early Stage · London, England · founded 1988 · 3300 employees$12.6Mraised▾
Provider of IT consulting & services
- Feb 2024Unattributed$12.6M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of IT Services coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising