This industry comprises legal entities (i.e., funds (except pension, and health- and welfare-related employee benefit funds)) organized to provide insurance exclusively for the sponsor, firm, or its employees or members. Self-insurance funds (except employee benefit funds) and workers' compensation insurance funds are included in this industry. Cross-References. ? Legal entities (i.e., funds, plans, and/or programs) organized to provide retirement income benefits exclusively for the sponsor's employees or members are classified in Industry 525110, Pension Funds; ? Legal entities (i.e., funds, plans, and/or programs) organized to provide health- and welfare-related employee benefits exclusively for the sponsor's employees or members are classified in Industry 525120, Health and Welfare Funds; ? Establishments primarily engaged in managing portfolios of insurance funds are classified in Industry 523920, Portfolio Management; ? Establishments primarily engaged in third party claims administration of insurance, and other employee benefit funds are classified in U.S. Industry 524292, Third Party Administration of Insurance and Pension Funds; and ? Establishments primarily engaged in providing insurance on a fee or contract basis are classified in Industry Group 5241, Insurance Carriers.