Company lists · Data refreshed November 2026

Top 25 Board effectiveness assessment firms worldwide

RevenueBase identified 252 company matches for board effectiveness assessment firms worldwide as of November 2026 and tracks 1,133 professional contacts across them, including 420 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for board effectiveness assessment firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for board effectiveness assessment firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
252Companies
1,133Contacts tracked
420Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest board effectiveness assessment firms worldwide

Ranked by team size
Top 25 of 252 company matches for board effectiveness assessment firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchToronto, AB, CanadaHQ recorded Nov 6, 202611-5061 contacts →

Exact match

“Twenty years of independent judgment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchVancouver, ON, CanadaHQ recorded Nov 6, 202611-5035 contacts →

Exact match

“At Watson, we help Boards be more effective so they can positively shape the future of their organizations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact match's Hertogenbosch, NetherlandsHQ recorded Nov 6, 202611-5034 contacts →

Exact match

“Quaestus Leadership Innovators specializes in Executive Search, Leadership & Team Development and Assessment Centers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchCape Town, South AfricaHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“At Sirdar, we understand the challenges of a boardroom and the trepidation that some entrepreneurs, founders and family businesses experience when considering implementing a board.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMelbourne, AustraliaHQ recorded Nov 6, 202611-5031 contacts →

Exact match

“BoardOutlook is the leading platform for board performance, with offices in London and Melbourne.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchParis, FranceHQ recorded Nov 6, 202611-5029 contacts →

Exact match

“With proprietary tools and a unique databank tracking 400+ governance metrics per company and covering the major listed companies across the world, we offer advanced governance…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchPhiladelphia, IL, United StatesHQ recorded Nov 6, 202611-5027 contacts →

Exact match

“HFA is one of the leading executive and board search firms in the nation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchOslo, NorwayHQ recorded Nov 6, 202611-5026 contacts →

Exact match

“Visindi - kloke ledervalg!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchChicago, IL, United StatesHQ recorded Nov 6, 202611-5025 contacts →

Exact match

“JamesDruryPartners is an elite board advisory services firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBarcelona, SpainHQ recorded Nov 6, 202611-5021 contacts →

Exact match

“Sarah Marlex provides executive search and corporate governance advisory services to enhance leadership and decision-making within organisations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchStockholm, SwedenHQ recorded Nov 6, 202611-5020 contacts →

Exact match

“BoardClic is the leading platform for digital board performance reviews.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchSan Francisco, CA, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Boardspan is the leading provider of digital governance solutions for boards across all sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchQuito, EcuadorHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Somos una de las 10 firmas más grandes del mundo en búsqueda y selección de ejecutivos de alta dirección y posiciones gerenciales con más de 34 años de trayectoria global.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchMunich, GermanyHQ recorded Nov 6, 202611-5016 contacts →

Exact match

“Board Consultants International widmet sich ausschließlich den Beratungsfeldern Executive Search und Board Consulting.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Fidelio Partners, founded in 2009, is a leading London-based Board advisory firm, committed to building better Boards.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Sam Allen Associates (SAA) is a boutique Board services firm with the expertise, tenacity and reach of a global search firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMilan, ItalyHQ recorded Nov 6, 20261-1012 contacts →

Exact match

“An independent professional firm with long and significant experience in the area of consultancy, aimed at the continuous improvement of the structure and practice of corporate…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchToronto, ON, CanadaHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“Through Governance Solutions, you have access to over 30 years of leadership and expertise that spans nearly every sector and corner of the globe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBoston, MA, United StatesHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“Your Partner in Value Creation We partner with ambitious Boards, Private Equity Firms, and Management teams seeking to achieve superior performance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAuckland, New ZealandHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“We redefine governance by delivering innovative solutions to clients in New Zealand, Australia and the United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSydney, AustraliaHQ recorded Nov 6, 20261-1010 contacts →

Exact match

“Hattonneale is a specialist Board Search and Advisory firm.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchDarien, CT, United StatesHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Our mission is to create analytics that set the standard for the assessment of public company directors, officers, and corporate governance to help investors and companies create…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchDublin, IrelandHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Board Excellence is a leading International Board Consultancy Practice that enables and empowers boards and individual directors to excel in effectiveness, governance and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBoston, MA, United StatesHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Founded in 2007, Blake Street Group provides executive and organizational assessments to Private Equity, Venture Capital, and operating firms.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBrisbane City, AustraliaHQ recorded Nov 6, 20261-109 contacts →

Exact match

“YOUmanity is an executive search and organisational consulting firm operating at the intersection of leadership, strategy, and humanity.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 252 board effectiveness assessment firms worldwide

See the full list, filter by size, metro and specialty, and access 420 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Board effectiveness assessment firms worldwide at a glance

As of Nov 6, 2026
37.1%Verified-email coverage
4.5Average contacts per company
1-10Median size (employees)
9.5%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
195
11-50
50
51-200
4
201-500
1
1,001-5,000
1

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for board effectiveness assessment firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “board effectiveness assessment firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 420 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Board effectiveness assessment firms by location

2 lists · largest first

Every Board effectiveness assessment firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “board effectiveness assessment firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many board effectiveness assessment firms are there worldwide?

RevenueBase identified 252 company matches for board effectiveness assessment firms worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Hugessen Consulting INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most board effectiveness assessment firms?

The United States leads with 52 companies, followed by the United Kingdom (33). Every board effectiveness assessment firms list by country and city is linked on this page.

Which city has the most board effectiveness assessment firms?

London leads with 24 company records, followed by Melbourne (7) and Oslo (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 420 professional contacts with verified work emails tracked across these 252 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 252 board effectiveness assessment firms worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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 SmartSearch, 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.