Berkshire Hathaway Inc. is a holding company with a diverse business model. It operates in various industries through its subsidiaries.

The company is involved in the insurance sector, offering primary and reinsurance services through segments like GEICO and the Berkshire Hathaway Reinsurance Group. Berkshire Hathaway also has a presence in the railroad industry through its BNSF segment, which manages rail networks in North America.

The company is active in the energy sector through Berkshire Hathaway Energy, providing regulated electric and gas utilities. Manufacturing is another key segment, producing a range of industrial, consumer, and construction products. The McLane Company specializes in wholesale distribution of food and non-food items. Pilot Travel Centers operates travel centers and serves as a wholesale fuel distributor in North America. Berkshire Hathaway has a broad reach across multiple industries.