This industry comprises establishments primarily engaged in writing, editing or proofreading documents; providing word processing or desktop publishing services; and providing stenographic (except court or stenographic reporting), transcription and other secretarial services.

This industry comprises establishments primarily engaged in receiving and/or making telephone calls for others. These establishments are engaged in activities such as soliciting or providing information; promoting goods or services; taking orders; and raising funds for clients. This industry also includes establishments primarily engaged in answering telephone calls and relaying messages to clients; and establishments primarily engaged in providing voice mailbox services.

This industry comprises establishments, known as copy shops, primarily engaged in providing mailbox rental and other postal and mailing services (except direct-mail advertising), and establishments that provide a range of office support services, such as mailing services, copying services, facsimile services, word processing services, on-site personal computer (PC) rental services and office product retailing.

This industry comprises establishments primarily engaged in collecting payment for claims and remitting these payments to their clients.

This industry comprises establishments primarily engaged in compiling information, such as credit and employment histories on individuals and credit histories on businesses, and providing the information to financial institutions, retailers and others who have a need to evaluate the credit worthiness of these persons and businesses. This industry also includes establishments providing credit investigation services.

This industry comprises establishments, not classified to any other industry, primarily engaged in providing other business support services.