Ambac Financial Group, Inc., through its subsidiaries, provides financial guarantees and financial services to clients in the public and private sectors worldwide. The company operates through two segments, Financial Guarantee and Financial Services. The Financial Guarantee segment provides financial guarantee insurance and other credit enhancement products in the U.S. public finance market, the U.S. structured finance and asset-backed market, and the international finance market. The Financial Services segment manages interest rate swap and investment agreement run off businesses for municipalities and other public entities, health care organizations, investor-owned utilities, and asset-backed issuers. Ambac Financial Group was founded in 1971 and is headquartered in New York, New York.