AllianceBernstein Holding L.P. provides research, investment management and related services to a range of clients through three buy-side distribution channels, institutions, retail and private wealth management, and its sell-side business, Bernstein Research Services. The Company's principal services include institutional services, retail services, private wealth management services and Bernstein research services. It offers institutional services to institutional clients, including private and public pension plans, foundations and endowments, insurance companies, central banks and governments around the world. It offers retail services that serve retail clients, primarily by means of retail mutual funds. It offers private wealth management services to private clients, including high-net-worth individuals and families, trusts and estates, charitable foundations, partnerships, private and family corporations, and other entities. It is engaged in providing various investment services.