Company lists · Data refreshed September 2026
Top 24 IT consulting partners based in London, United Kingdom
RevenueBase identified 2,510 IT consulting partners headquartered in London, United Kingdom as of September 2026 and tracks 72,654 professional contacts across them, including 28,696 with verified work emails. Across the United Kingdom, London is the largest hub for this category.
This list covers IT consulting partners headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 27, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 24 largest IT consulting partners based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,653 contacts → | ||||
Indirect evidence “For over two decades, we have been harnessing technology to drive meaningful change.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 7,396 contacts → | ||||
Indirect evidence “Capco, a Wipro company, is a global technology and management consultancy specializing in driving digital transformation in the financial services industry.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 5,203 contacts → | ||||
Indirect evidence “Photon, a global leader in AI and digital solutions, helps clients accelerate AI adoption and embrace DigitalHyper-expansion® to ‘make tomorrow happen today’.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,611 contacts → | ||||
Indirect evidence “We are experts in technology, delivering smart solutions that solve business challenges and create value.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,508 contacts → | ||||
Indirect evidence “Noventiq (Noventiq Holdings PLC) is a leading global solutions and services provider in digital transformation and cybersecurity, headquartered in London.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,417 contacts → | ||||
Partial evidence “K2 Partnering Solutions is a global provider of unique end-to-end consultative solutions in the enterprise applications, AI, and cloud space.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,178 contacts → | ||||
Indirect evidence “Genisys Group is a new age global information technology and business process services company.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,172 contacts → | ||||
Indirect evidence “We are honoured to be recognised as one of the Top 10 Best Places to Work in the UK for the third year running, according to Glassdoor’s prestigious 2026 list.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 976 contacts → | ||||
Partial evidence “Delta Capita is a leading global Capital Markets consulting, managed services, and technology provider with a unique combination of experience in financial services and capability…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 910 contacts → | ||||
Indirect evidence “We empower people to create sustainable value with the clever use of technology.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 742 contacts → | ||||
Indirect evidence “Kerv exists to use the power of technology for good: for our customers, our people, our communities and the planet.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 697 contacts → | ||||
Indirect evidence “Follow us now at WPP Enterprise Solutions, WPP’s global business transformation unit, designing, building and operating the growth systems that competitive businesses rely on.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 545 contacts → | ||||
Indirect evidence “At Acuvate, we empower enterprises to accelerate their Next gen transformation journeys with an AI-First approach.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 422 contacts → | ||||
Indirect evidence “Our team of world-class professionals across the globe work together to innovate and enable sustainable business transformation.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 408 contacts → | ||||
Indirect evidence “Zenitech creates technology to transform businesses.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 401 contacts → | ||||
Partial evidence “We believe successful businesses are underpinned by quality IT infrastructure.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 400 contacts → | ||||
Indirect evidence “Kin + Carta was acquired by Valtech in 2024.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 398 contacts → | ||||
Indirect evidence “We’re Connect, a global systems integrator and digital transformation expert with over 35 years of experience.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 363 contacts → | ||||
Indirect evidence “We are a global niche consultancy specialising in services that span all facets of Digital transformation, DevOps, and System Integration.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 360 contacts → | ||||
Indirect evidence “Softwire exists to help organisations use technology to deliver meaningful outcomes and a positive impact for themselves, their users and the world.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 329 contacts → | ||||
Partial evidence “We are the global consulting division of Davies, accelerating business, technology and people performance across financial services including Retail Finance & Corporate Banking…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 305 contacts → | ||||
Indirect evidence “We are digital transformation specialists, on a mission to make our society an easier and more equitable place for people to live, work and thrive.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 302 contacts → | ||||
Partial evidence “Cartesian is a specialist consulting firm focused on the global telecommunications, media, and technology industries and is now part of Bounteous, an AI services firm helping…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 286 contacts → | ||||
Partial evidence “At Total IT Global, we elevate your digital journey with cutting-edge innovation, to achieve your vision of ‘the enterprise of the future’.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: IT consulting partners. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names IT consulting partners.
- Partial evidence
- Its own public description names part of IT consulting partners, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name IT consulting partners. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 24 of 2,510 IT consulting partners based in London, United Kingdom
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 28,696 reachable decision-makers.
Free signup · no credit card
IT consulting partners based in London, United Kingdom at a glance
As of Sep 27, 2026Companies by employee count
Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 2,510 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among IT consulting partners, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in London, United Kingdom whose own description of what they do matches “IT consulting partners”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names IT consulting partners), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among IT consulting partners, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 28,696 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 27, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
IT consulting partners by metro in the United Kingdom
- IT consulting partners in Manchester142
- IT consulting partners in Birmingham87
- IT consulting partners in Reading81
- IT consulting partners in Bristol76
- IT consulting partners in Leeds74
- IT consulting partners in Glasgow65
- IT consulting partners in Edinburgh55
- IT consulting partners in Milton Keynes46
- IT consulting partners in Sheffield36
- IT consulting partners in Liverpool34
- IT consulting partners in Cambridge31
- IT consulting partners in Coventry30
- IT consulting partners in Cardiff28
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names IT consulting partners, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many IT consulting partners are there based in London, United Kingdom?
RevenueBase identified 2,510 IT consulting partners headquartered in London, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Endava, headquartered in London, tops this list with the largest team on record.
Which city in the United Kingdom has the most IT consulting partners?
London leads the United Kingdom with 2,510 headquartered companies, followed by Manchester (142) and Birmingham (87).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 28,696 verified decision-maker contacts tracked across these 2,510 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,510 IT consulting partners based in London, United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
IT consulting partners by geography
- IT consulting partners based in the United States
- IT consulting partners based in the United Kingdom
- IT consulting partners based in Germany
- IT consulting partners based in France
- IT consulting partners based in Brazil
- IT consulting partners based in Canada
- IT consulting partners based in Italy
- IT consulting partners based in Australia
- IT consulting partners based in Spain
- IT consulting partners based in Mexico
- IT consulting partners based in the Netherlands
- IT consulting partners based in Switzerland
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- IT consulting partners based in the United States
- IT consulting partners based in the United Kingdom
- IT consulting partners based in Germany
- IT consulting partners based in France
- IT consulting partners based in Brazil
- IT consulting partners based in Canada