MSIG Holdings (U.S.A.), Inc. (MSIG USA)

MSIG USA is the U.S.-based subsidiary of MS&AD Insurance Group Holdings, Inc., a global property and casualty (P&C) carrier. The company's core business revolves around providing comprehensive commercial insurance solutions. Its mission is to contribute to the development of a vibrant society and help secure a sound future by delivering security and safety through its global insurance and financial services business. MSIG USA's U.S. operational headquarters is located in Warren, New Jersey.

MSIG USA offers a diverse portfolio of commercial insurance products, including property, casualty, marine (inland and ocean), financial insurance (political risk and trade credit), and cyber solutions. Beyond insurance policies, the company provides value-added services such as risk engineering, loss runs, and premium audits, aimed at helping clients reduce exposures and prevent losses. Serving both US-based and multinational businesses, MSIG USA is admitted in all P&C lines across all 50 states, the District of Columbia, and Puerto Rico, and also operates an Excess & Surplus (E&S) lines carrier.

In recent news, MSIG USA earned its second consecutive Celent Model Insurer Award in June 2026 for Data, Analytics, and AI, acknowledging its advancements in AI-powered underwriting transformation. Concurrently, AM Best affirmed A+ (Superior) ratings for MSIG USA's existing U.S. insurance companies and assigned an A+ rating to its newly established E&S lines carrier, MSIG Specialty Insurance America, Inc., a rating also assigned by S&P Global Ratings in May 2026. Peter McKenna serves as the CEO of MSIG USA, while Martin J. Sullivan was appointed Chairman of the Board of MSIG Holdings (U.S.A.), Inc. in September 2025. The company maintains a strong market position, underscored by its A+ ratings from AM Best and S&P, reflecting the financial strength and extensive global reach of its parent organization.