This major group includes establishments engaged in the underwriting, purchase, sale, or brokerage of securities and other financial contracts on their own account or for the account of others; and exchanges, exchange clearinghouses, and other services allied with the exchange of securities and commodities.

• Industry Group 621: Security Brokers, Dealers, And Flotation
  • 6211 Security Brokers, Dealers, And Flotation Companies
  
  
• Industry Group 622: Commodity Contracts Brokers And Dealers
  • 6221 Commodity Contracts Brokers And Dealers
  
  
• Industry Group 623: Security And Commodity Exchanges
  • 6231 Security And Commodity Exchanges
  
  
• Industry Group 628: Services Allied With The Exchange Of Securities
  • 6282 Investment Advice
  • 6289 Services Allied With The Exchange Of Securities Or Commodities, Not