AllianceBernstein (AllianceBernstein Holding L.P., NYSE: AB) is a leading global asset management firm headquartered in Nashville, Tennessee, managing trillions of dollars in assets under management (AUM) for a diverse clientele including institutional investors, high-net-worth individuals, and retail investors worldwide. The firm operates through a network of offices across the Americas, Europe, Asia-Pacific, and the Middle East, offering research-driven investment management services across equities, fixed income, alternatives, and multi-asset solutions.

The company traces its origins to 1967 when Sanford C. Bernstein founded his eponymous private investment firm, known for value equity and tax-exempt fixed income expertise. The modern entity was formed in October 2000 through the merger of Alliance Capital Management and Sanford C. Bernstein, combining Alliance's growth equity and corporate fixed income strengths with Bernstein's value-oriented capabilities. This strategic union created a comprehensive asset manager with blended expertise that had few industry precedents.

AllianceBernstein is structured as one firm with two core businesses: Selling, Servicing & Execution (SS&E) for institutional and retail clients, and Private Wealth Management for high-net-worth individuals. The company has expanded into sustainable investing and technology-driven solutions while maintaining a commitment to innovation, global reach, and delivering long-term value to clients amid evolving financial landscapes.