# PBC Index

> An open index of U.S. companies devoted to human flourishing: Public Benefit Corporations, certified B Corps, steward-owned firms, and other structures that protect purpose from short-term shareholder pressure.

The PBC Index is an open, read-only index of 364 U.S. companies with
mission-locking governance (statutory benefit corporations / Public Benefit
Corporations, certified B Corps, steward-owned firms, perpetual-purpose trusts,
golden shares). Data is licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/); please attribute "PBC Index, https://pbcindex.com".

## Data API (read-only, no key, CORS open)

- The full index as JSON: https://pbcindex.com/api/companies
  - Optional filters: ?governance_type=pbc|certified_b_corp|steward_owned|perpetual_purpose_trust|golden_share|other
  - ?status=public|private  ·  ?q=<name substring>
- The full index as CSV: https://pbcindex.com/api/companies?format=csv
- A single company by slug: https://pbcindex.com/api/companies/{slug}
- The JSON Schema for an entry: https://pbcindex.com/api/schema

## Docs

- Human-readable API reference and examples: https://pbcindex.com/for-ai
- How the AI lookup pipeline works: https://pbcindex.com/docs
- About and methodology: https://pbcindex.com/about

## Notes

- The API is read-only. To add a company, search its name on https://pbcindex.com and the on-site AI lookup researches and publishes it.
- Entries are informational, not legal advice. Verify against the cited sources before relying on any entry.