Establishments primarily engaged in furnishing services to security or commodity holders, brokers, or dealers, not elsewhere classified.
- Bondholders protective committees
- Custodians of securities
- Exchange clearinghouses, commodity
- Exchange clearinghouses, security
- Financial reporting
- Quotation service, stock
- Royalty owners protective associations
- Security custodians
- Security holders protective committees
- Stock transfer agents
- Transfer agents, securities