Transparency varies enormously across this market. This index records, for each of 185 organizations, whether it publishes its criteria, a price, a member count, a founding year and its chapter locations — five facts a prospective member would reasonably expect to find.

99%publish at least one criterion

52%publish a price

54%state a member count

43%list chapter locations

Reading the pattern

Criteria are published far more often than prices: an organization that wants to keep a room consistent has every reason to state who qualifies and, if it sells through Chairs or franchisees, every reason not to state what it costs. Member counts are the weakest figure — where they are published they are often rounded, sometimes contradictory across an organization's own pages, and rarely dated, which is why the database records the date it observed each count and marks counts older than two years. Invitation-only bodies publish the least of all, by design.

The index

Yes means the organization itself publishes the fact or a document a named publication reproduced states it. A reported second-hand figure does not count.
Organization	Type	Criteria	Price	Members	Chapters	Score
5 Hertford Street	Private club	Yes	No	No	Yes	3/5
ACG	Professional association	Yes	Yes	Yes	Yes	5/5
AM&AA	Professional association	Yes	Yes	Yes	Yes	5/5
Abundance360	Paid mastermind	Yes	Yes	Yes	Yes	5/5
Academy for Chief Executives	Peer advisory	Yes	No	Yes	No	2/5
All Raise	Networking organization	Yes	Yes	Yes	No	4/5
Alliance of Angels	Investment community	Yes	No	Yes	No	3/5
Angel Capital Association	Professional association	Yes	Yes	Yes	No	4/5
Angel Squad	Investment community	Yes	No	Yes	No	3/5
Annabel's	Private club	Yes	No	No	Yes	3/5
Aspen Global Leadership Network	Leadership network	Yes	No	Yes	No	3/5
Athena Alliance	Networking organization	Yes	Yes	No	No	2/5
BLCK VC	Networking organization	Yes	No	No	Yes	3/5
Baby Bathwater Institute	Invitation-only community	Yes	Yes	No	No	3/5
Band of Angels	Investment community	Yes	No	Yes	No	3/5
Bohemian Club	Private club	Yes	No	No	No	2/5
Business Roundtable	Professional association	Yes	No	Yes	No	3/5
C12	Peer advisory	Yes	No	Yes	No	3/5
C200	Professional association	Yes	No	Yes	No	3/5
CCC Alliance	Family-office network	Yes	No	No	No	2/5
CCIM Institute	Professional association	Yes	Yes	Yes	Yes	5/5
CEO Global Network	Peer advisory	Yes	No	No	No	1/5
CFO Leadership Council	Professional association	Yes	Yes	Yes	Yes	5/5
CORE:	Private club	Yes	No	Yes	Yes	4/5
CREDA (formerly NAIOP)	Professional association	Yes	Yes	Yes	Yes	5/5
CREW Network	Professional association	Yes	Yes	Yes	Yes	5/5
Campden Wealth	Family-office network	Yes	No	Yes	No	3/5
Casa Cipriani	Private club	Yes	Yes	No	Yes	4/5
Central Texas Angel Network	Investment community	Yes	Yes	Yes	No	4/5
Chief	Networking organization	Yes	No	No	Yes	3/5
Chief Executive Network	Peer advisory	Yes	Yes	Yes	Yes	5/5
Chief Executives Organization	Invitation-only community	Yes	No	No	No	2/5
Commonwealth Club World Affairs	Networking organization	Yes	Yes	Yes	Yes	5/5
Convene	Peer advisory	Yes	No	No	Yes	3/5
Cosmos Club	Private club	Yes	No	No	No	2/5
Council on Foreign Relations	Invitation-only community	Yes	Yes	Yes	No	4/5
Detroit Athletic Club	Private club	Yes	No	No	No	2/5
Detroit Economic Club	Networking organization	Yes	Yes	Yes	No	4/5
Duquesne Club	Private club	Yes	No	No	No	2/5
Dynamite Circle	Invitation-only community	Yes	Yes	Yes	Yes	5/5
Ellevate Network	Networking organization	Yes	Yes	No	Yes	4/5
Endeavor	Leadership network	Yes	No	Yes	Yes	4/5
Entrepreneur Leadership Network	Networking organization	Yes	Yes	No	No	2/5
Entrepreneurs' Organization	Peer advisory	Yes	Yes	Yes	Yes	5/5
Family Business Alliance	Family-business organization	Yes	Yes	Yes	No	4/5
Family Business Association	Family-business organization	Yes	Yes	No	Yes	4/5
Family Business Network (FBN)	Family-business organization	Yes	Yes	Yes	Yes	5/5
Family Business UK	Family-business organization	Yes	Yes	No	No	3/5
Family Enterprise Center at Kennesaw State University	Family-business organization	Yes	Yes	No	No	3/5
Family Enterprise USA	Family-business organization	Yes	Yes	No	No	3/5
Family Firm Institute (FFI)	Professional association	Yes	Yes	No	No	3/5
Family Office Association	Family-office network	Yes	No	No	No	2/5
Family Office Exchange	Family-office network	Yes	No	Yes	No	3/5
Family Office Networks	Family-office network	Yes	Yes	Yes	No	4/5
Fast Company Executive Board	Networking organization	Yes	No	No	No	1/5
Financial Executives International	Professional association	Yes	Yes	Yes	Yes	5/5
Fisher Island Club	Private club	Yes	No	No	No	2/5
Forbes Councils	Networking organization	Yes	No	No	No	1/5
Forum of Young Global Leaders	Leadership network	Yes	No	Yes	No	3/5
Forward Global	Philanthropic network	Yes	No	Yes	Yes	4/5
Founders Forum	Invitation-only community	Yes	No	Yes	No	3/5
Founders Network	Networking organization	Yes	Yes	Yes	Yes	5/5
Front Row Dads	Paid mastermind	Yes	Yes	No	Yes	4/5
G100 Network	Peer advisory	Yes	No	Yes	No	2/5
Gartner C-level Communities	Leadership network	Yes	No	Yes	Yes	3/5
Genius Network	Paid mastermind	Yes	No	No	No	2/5
Global Philanthropists Circle	Philanthropic network	Yes	No	No	No	2/5
Global Shapers Community	Leadership network	Yes	No	Yes	Yes	4/5
Gobundance	Paid mastermind	Yes	Yes	Yes	Yes	5/5
Golden Seeds	Investment community	Yes	No	Yes	Yes	4/5
HBR Advisory Council	Invitation-only community	Yes	Yes	No	No	2/5
HBS Alumni Angels	Investment community	Yes	Yes	Yes	Yes	4/5
Hampton	Peer advisory	Yes	No	Yes	Yes	3/5
Harvard Club of Boston	Private club	Yes	Yes	No	No	3/5
Harvard Club of New York City	Private club	Yes	Yes	No	No	3/5
Helm	Invitation-only community	Yes	Yes	Yes	Yes	5/5
Home Grown	Private club	Yes	Yes	No	Yes	4/5
Home House	Private club	Yes	Yes	No	Yes	4/5
Houston Angel Network	Investment community	Yes	Yes	Yes	No	4/5
Hyde Park Angels	Investment community	Yes	No	Yes	No	3/5
ICSC	Professional association	Yes	Yes	Yes	No	4/5
ILPA	Professional association	Yes	Yes	Yes	No	4/5
Institute for Private Investors	Family-office network	Yes	No	Yes	No	3/5
Institute of Directors	Professional association	Yes	Yes	Yes	Yes	5/5
Invest Europe	Professional association	Yes	No	Yes	No	3/5
Jonathan Club	Private club	Yes	No	No	Yes	3/5
Kauffman Fellows	Leadership network	Yes	Yes	Yes	No	4/5
Keiretsu Forum	Investment community	Yes	Yes	Yes	Yes	5/5
LAVA	Networking organization	Yes	Yes	No	No	3/5
Level 20	Networking organization	Yes	Yes	Yes	Yes	5/5
Long Angle	Invitation-only community	Yes	Yes	No	No	3/5
Loyola University Chicago Family Business Center	Family-business organization	Yes	Yes	No	No	3/5
Luminary	Networking organization	Yes	Yes	Yes	Yes	5/5
MMT	Invitation-only community	Yes	No	Yes	No	3/5
MacKay CEO Forums	Peer advisory	Yes	Yes	Yes	Yes	5/5
Maverick1000	Invitation-only community	Yes	Yes	No	No	3/5
Miami Angels	Investment community	No	No	Yes	No	2/5
Milken Institute Young Leaders Circle	Leadership network	Yes	No	Yes	No	2/5
NAWBO	Professional association	Yes	Yes	No	Yes	4/5
NEXUS Global	Philanthropic network	Yes	Yes	Yes	Yes	5/5
NVCA	Professional association	Yes	Yes	No	No	3/5
National REIA	Investment community	Yes	No	Yes	Yes	4/5
Ned's Club	Private club	Yes	No	No	Yes	3/5
NeueHouse	Private club	Yes	Yes	No	Yes	4/5
New World Angels	Investment community	Yes	Yes	Yes	No	4/5
New York Angels	Investment community	Yes	No	Yes	No	3/5
On Deck	Invitation-only community	Yes	Yes	Yes	Yes	5/5
PEWIN	Invitation-only community	Yes	No	Yes	Yes	4/5
PREA	Professional association	Yes	Yes	Yes	No	4/5
Pacific-Union Club	Private club	No	No	No	No	1/5
Pavilion	Peer advisory	Yes	Yes	Yes	Yes	5/5
Petroleum Club of Houston	Private club	Yes	Yes	No	No	3/5
Pipeline Angels	Investment community	Yes	No	Yes	No	3/5
Portfolia	Investment community	Yes	No	Yes	No	2/5
R360	Invitation-only community	Yes	No	Yes	Yes	3/5
REAPS	Investment community	Yes	Yes	No	No	3/5
REF	Peer advisory	Yes	Yes	Yes	Yes	5/5
REIN	Investment community	Yes	Yes	No	No	3/5
Renaissance Weekend	Invitation-only community	Yes	No	No	No	2/5
Resource Generation	Philanthropic network	Yes	Yes	Yes	Yes	5/5
San Vicente Bungalows	Private club	Yes	No	No	Yes	3/5
Sand Hill Angels	Investment community	Yes	No	Yes	No	3/5
Searchfunder	Investment community	Yes	Yes	No	No	2/5
Seattle Executives Association	Networking organization	Yes	No	Yes	No	3/5
Small Giants Community	Networking organization	Yes	Yes	No	No	3/5
Social Venture Partners International	Philanthropic network	Yes	Yes	Yes	Yes	5/5
Society for Information Management	Professional association	Yes	Yes	Yes	Yes	5/5
Soho House	Private club	Yes	Yes	Yes	Yes	5/5
Solidaire Network	Philanthropic network	Yes	No	No	No	2/5
Somerset Club	Private club	Yes	No	No	No	2/5
South Park Commons	Invitation-only community	Yes	Yes	Yes	Yes	5/5
Spring Place	Private club	Yes	No	No	Yes	3/5
Strategic Coach	Paid mastermind	Yes	No	No	Yes	3/5
Summit	Invitation-only community	Yes	Yes	No	Yes	4/5
TCA Venture Group	Investment community	Yes	No	Yes	Yes	4/5
TEC Canada	Peer advisory	Yes	No	Yes	Yes	4/5
TIGER 21	Peer advisory	Yes	Yes	Yes	Yes	5/5
TMA	Professional association	Yes	Yes	Yes	Yes	5/5
The 'Quin House	Private club	Yes	No	No	No	2/5
The Alternative Board	Peer advisory	Yes	No	No	No	2/5
The Arts Club	Private club	Yes	Yes	No	Yes	4/5
The Aster	Private club	Yes	Yes	Yes	Yes	4/5
The Battery	Private club	Yes	No	No	Yes	3/5
The Business Council	Invitation-only community	Yes	No	Yes	No	3/5
The CEO Institute	Peer advisory	Yes	No	No	Yes	3/5
The CMO Club	Networking organization	Yes	No	Yes	No	2/5
The California Club	Private club	Yes	Yes	No	No	3/5
The Chicago Club	Private club	Yes	Yes	No	No	3/5
The Clubhouse	Private club	Yes	Yes	No	Yes	4/5
The Collective Genius	Paid mastermind	Yes	No	Yes	No	2/5
The Conduit	Private club	Yes	Yes	No	Yes	4/5
The Conference Board Councils	Peer advisory	Yes	No	No	No	2/5
The Economic Club of Chicago	Invitation-only community	Yes	No	Yes	No	3/5
The Economic Club of New York	Invitation-only community	Yes	Yes	No	No	3/5
The Economic Club of Washington, D.C.	Invitation-only community	Yes	No	Yes	No	3/5
The Executives' Club of Chicago	Networking organization	Yes	Yes	No	No	2/5
The Family Office Club	Networking organization	Yes	Yes	No	No	3/5
The Giving Pledge	Philanthropic network	Yes	No	Yes	No	3/5
The Groucho Club	Private club	Yes	Yes	No	Yes	4/5
The ImPact	Family-office network	Yes	No	Yes	No	3/5
The Lifestyle Investor Mastermind	Paid mastermind	Yes	Yes	No	Yes	3/5
The Metropolitan Club	Private club	Yes	No	No	No	2/5
The Metropolitan Club of the City of Washington	Private club	Yes	No	No	No	2/5
The PEER 150	Networking organization	Yes	Yes	Yes	Yes	5/5
The Rainier Club	Private club	Yes	Yes	No	No	3/5
The Real Estate Roundtable	Invitation-only community	Yes	No	No	No	2/5
The Twenty Two	Private club	Yes	Yes	No	Yes	4/5
The Union League of Philadelphia	Private club	Yes	No	Yes	No	3/5
The University Club of New York	Private club	Yes	No	No	No	2/5
The Yale Club of New York City	Private club	Yes	No	Yes	No	3/5
Toniic	Investment community	Yes	Yes	Yes	No	4/5
Tony Robbins Platinum Partnership	Paid mastermind	Yes	Yes	No	No	2/5
Tower Club Dallas	Private club	Yes	Yes	No	No	3/5
Tugboat Institute	Peer advisory	Yes	No	No	Yes	3/5
UK Private Capital (formerly BVCA)	Professional association	Yes	Yes	Yes	No	4/5
Union League Club of Chicago	Private club	Yes	No	No	No	2/5
Urban Land Institute	Professional association	Yes	Yes	Yes	Yes	5/5
Vistage	Peer advisory	Yes	No	Yes	No	3/5
Vistage Australia and New Zealand	Peer advisory	Yes	No	Yes	Yes	4/5
Washington Athletic Club	Private club	Yes	No	No	No	2/5
Women Moving Millions	Philanthropic network	Yes	Yes	Yes	No	4/5
Women Presidents Organization	Peer advisory	Yes	No	No	Yes	3/5
YPO	Peer advisory	Yes	Yes	Yes	Yes	5/5
Young Entrepreneur Council	Networking organization	Yes	No	No	No	2/5
Zero Bond	Private club	Yes	Yes	No	Yes	4/5

Regenerated from the records as of 14 October 2026.

The disclosure index: what each organization publishes about itself

Reading the pattern

The index

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