Tokio Marine Holdings, Inc. operates as a global conglomerate, offering a wide array of services including property and casualty insurance, life insurance, financial solutions, and various general business activities. The company structures its extensive operations across four key segments: domestic non-life insurance, domestic life insurance, international insurance, and a division for financial and other ventures.

Its comprehensive insurance portfolio covers fire and allied perils, marine (hull and cargo), health, personal accident, and automotive insurance, among others. Beyond insurance, the firm provides asset management, investment advisory, and investment trust services, alongside offerings like staffing, facility operational management, and nursing care.

Established in 2002 as Millea Holdings, Inc., the company rebranded to Tokio Marine Holdings, Inc. in 2008 and is headquartered in Tokyo, Japan.