Research and data
Original analysis built from the database: what dues actually cost across peer groups, how thresholds have moved, how the organizations are classified, and what is and is not disclosed. Each piece states its method and the date of the data it used.
Published membership thresholds, and how they have moved
Every numeric entry test in the database — age ceilings, revenue floors, net-worth and investable-asset minimums — for 69 organizations, with the changes captured.
The disclosure index: what each organization publishes about itself
For 185 organizations, whether the criteria, the price, the member count, the founding year and the chapters are public — and the pattern behind who discloses what.
What membership costs: every published fee in the database
A survey of disclosed dues and initiation fees across 185 organizations, with the share that publish a price at all — regenerated from the records.
Programmatic access
The same records are available through a bounded, rate-limited API with provenance in every response, and every organization page is served as JSON and Markdown. API documentation · llms.txt