Company lists · Data refreshed September 2026
Top 25 Board governance consulting firms based in London, United Kingdom
RevenueBase identified 134 board governance consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 677 professional contacts across them, including 299 with verified work emails and 49 with mobile numbers. London is the largest hub.
This list covers board governance consulting firms 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 2, 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 25 largest board governance consulting firms based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 144 contacts → | ||||
Partial evidence “Board Intelligence is EMEA's largest board technology and advisory firm, trusted by more than leaders across the Fortune 500, FTSE 100, and OMX 30.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 2 | 40 contacts → | ||||
Partial evidence “Warren Partners is a leading purpose driven, employee-owned search firm, devoted to building and supporting diverse boards and executive leadership teams internationally.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 3 | 28 contacts → | ||||
Indirect evidence “What we do strengthens the position of business leaders and builds a more productive and efficient business by driving the right behaviours and culture in your teams through…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 4 | 25 contacts → | ||||
Strong evidence “MWM is a leading international Executive Search and Board Advisory consulting firm.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 5 | 20 contacts → | ||||
Strong evidence “An independent executive search and board consulting partnership BOARD ADVISORY Lygon's advisory services support on Board performance with advice on executive and non-executive…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 6 | 20 contacts → | ||||
Partial evidence “The Financial Times Board Director Programme leads the way in supporting aspiring and existing board members.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 7 | 19 contacts → | ||||
Strong evidence “OUR VISION To contribute to the global economy through refining the Environmental, Social, and Corporate Governance space by creating responsible corporates through Board…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 8 | 17 contacts → | ||||
Strong evidence “Inclusive Boards is an agency set up specifically to support organisations in efforts to develop boards that are more diverse, inclusive organisations, and stronger governance…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 9 | 14 contacts → | ||||
Partial evidence “Sam Allen Associates (SAA) is a boutique Board services firm with the expertise, tenacity and reach of a global search firm.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 10 | 13 contacts → | ||||
Partial evidence “Fidelio Partners, founded in 2009, is a leading London-based Board advisory firm, committed to building better Boards.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 11 | 12 contacts → | ||||
Partial evidence “NEDonBoard, the Institute of Board Members is the professional membership and development body for non-executive directors and board members.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 12 | 10 contacts → | ||||
Partial evidence “Centralis Governance, Risk & Compliance gives clients the freedom to focus on their core strengths and business strategy.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 13 | 8 contacts → | ||||
Partial evidence “Since 2002, we have become Europe's leading Board review provider through word of mouth, with a team that has completed over mandates.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 14 | 7 contacts → | ||||
Partial evidence “Together, our mission is to promote and develop excellent governance across civil society.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 15 | 6 contacts → | ||||
Partial evidence “By choosing Round Governance Services, you’re choosing to alleviate some of the burden that falls on you as the company secretary or director.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 contacts → | ||||
Partial evidence “Better Boards exists to help ambitious organisations get the boards they deserve – knowledgeable, curious and truly effective.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Indirect evidence “Co-founded by Anna Joseph and John Allan, J&A Mentoring Partners represents a group of highly experienced Chairs and former CEOs who are passionate about mentoring and its power…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 18 | 6 contacts → | ||||
Partial evidence “Philia International is a not-for-profit board and leadership consultancy.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 19 | 5 contacts → | ||||
Indirect evidence “Leadership Advisor Group is on a mission to make the world better led.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Partial evidence “FVP is a network of investment professionals who act as Board Advisors and Independent Directors when companies face complex operational, financial, legal and stakeholder issues.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 21 | 4 contacts → | ||||
Strong evidence “We launched AMBA over a decade ago, to support Boards with Corporate Governance and Company Secretarial Services.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 contacts → | ||||
Partial evidence “Identified by the Financial Times as one of the top consultancies operating in the private and public sectors, the Good Governance Institute (GGI) has a decade of experience…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Partial evidence “We help small (<£500.00) to mid-size charitable organisations grow their missions by finding and placing the best board members with the necessary expertise and commitment.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 24 | 3 contacts → | ||||
Strong evidence “Established in 2012, Cornforth Consulting is an independent search boutique specialising in board appointments and asset management.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Indirect evidence “Offering professional support and structure to those wishing to gain a commercial NED role as a senior executive or to create, refresh or extend a portfolio career as a…” Source: RevenueBase Database · checked Sep 2, 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: board governance consulting firms. 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 board governance consulting firms.
- Partial evidence
- Its own public description names part of board governance consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name board governance consulting firms. 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 25 of 134 board governance consulting firms based in London, United Kingdom
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 299 reachable decision-makers.
Free signup · no credit card
Board governance consulting firms based in London, United Kingdom at a glance
As of Sep 2, 2026Companies by employee count
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 board governance consulting firms, 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 “board governance consulting firms”. 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 board governance consulting firms), 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 board governance consulting firms, 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, 299 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 2, 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.
Board governance consulting firms by metro in the United Kingdom
- Board governance consulting firms in London134
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 board governance consulting firms, 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 board governance consulting firms are there based in London, United Kingdom?
RevenueBase identified 134 board governance consulting firms 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?
Board Intelligence, headquartered in London, tops this list with the largest team on record.
Which city has the most board governance consulting firms?
London leads with 134 headquartered companies, followed by Bristol (5) and Edinburgh (4).
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 299 verified decision-maker contacts tracked across these 134 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 2, 2026.
Ready to reach these companies? Verified emails and direct dials for all 134 board governance consulting firms based in London, United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Board governance consulting firms by geography
- Board governance consulting firms based in the United States
- Board governance consulting firms based in the United Kingdom
- Board governance consulting firms based in Australia
- Board governance consulting firms based in Brazil
- Board governance consulting firms based in Sweden
- Board governance consulting firms based in Canada
- Board governance consulting firms based in the Netherlands
- Board governance consulting firms based in Switzerland
- Board governance consulting firms based in France
- Board governance consulting firms based in Germany
- Board governance consulting firms based in South Africa
- Board governance consulting firms based in Denmark
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
- Board governance consulting firms based in the United States
- Board governance consulting firms based in the United Kingdom
- Board governance consulting firms based in Australia
- Board governance consulting firms based in Brazil
- Board governance consulting firms based in Sweden
- Board governance consulting firms based in Canada