This industry comprises establishments primarily engaged in acting as agents or brokers (except securities brokerages and commodity contracts brokerages) in buying and selling financial contracts providing financial investment activities (except securities and commodity exchanges, portfolio management, and investment advice). Investment banking and securities dealing, securities brokerage, commodity contracts dealing, or commodity contracts brokering--are classified in Industry Group 5231, Securities and Commodity Contracts Intermediation and Brokerage; Acting as principals (except investment bankers, securities dealers, and commodity contracts dealers) in buying or selling financial contracts (except securities or commodity contracts)--are classified in Industry 523910, Miscellaneous Intermediation; Furnishing physical or electronic marketplaces for the purpose of facilitating the buying and selling of securities and commodities--are classified in Industry 523210, Securities and Commodity Exchanges; Managing the portfolio assets (i.e., funds) of others--are classified in Industry 523920, Portfolio Management; Providing customized investment advice--are classified in Industry 523930, Investment Advice; Awarding grants from trust funds--are classified in Industry 81321, Grantmaking and Giving Services; Performing real estate escrow or real estate fiduciary activities--are classified in Industry 531390, Other Activities Related to Real Estate; and Financial transactions processing, reserve, and clearinghouse activities--are classified in Industry 522320, Financial Transactions Processing, Reserve, and Clearinghouse Activities.