Berkshire Hathaway Inc.

Berkshire Hathaway is a diversified holding company with a wide range of businesses. Its primary operations include insurance (property, casualty, life, accident, and health insurance and reinsurance), freight rail transportation through its railroad systems in North America, and utility businesses that generate, transmit, store, and distribute electricity from various sources such as natural gas, coal, wind, solar, hydroelectric, nuclear, and geothermal. The company also operates natural gas distribution and storage facilities, interstate pipelines, and liquefied natural gas facilities. Additionally, Berkshire Hathaway manufactures products like boxed chocolates and confectionery, specialty chemicals, metal cutting tools, components for aerospace and power generation, residential homes, flooring, insulation, roofing, paints and coatings, bricks, and masonry products. It also offers home construction and related lending services, recreational vehicles, apparel, footwear, toys, jewelry, alkaline batteries, and provides logistics services and professional aviation training.

Berkshire Hathaway's Class B shares (ticker BRK-B) are listed on the New York Stock Exchange (NYSE). The company is based in the United States and trades in U.S. dollars (USD). As a U.S.-domiciled company, its financial reporting is in USD, and investors typically trade the stock in U.S. currency. The NYSE is one of the world's largest stock exchanges, providing liquidity and visibility for Berkshire Hathaway's shares.

Berkshire Hathaway operates in the Financial Services sector, specifically within the Insurance - Diversified industry. This classification reflects its core insurance and reinsurance operations, which form a significant part of its business. However, due to its vast and diverse portfolio, the company also has substantial interests in other sectors such as transportation, utilities, manufacturing, and retail. The 'diversified' aspect highlights that Berkshire Hathaway's insurance activities span multiple lines, including property, casualty, life, accident, and health insurance, as well as reinsurance.

Berkshire Hathaway's portfolio includes a wide array of well-known businesses and products. In manufacturing, it produces boxed chocolates and confectionery, specialty chemicals, metal cutting tools, and components for aerospace and power generation. It also manufactures prefabricated and site-built residential homes, flooring products, insulation, roofing, engineered products, paints and coatings, bricks, and masonry products. The company offers recreational vehicles, apparel, footwear, toys, jewelry, custom picture framing, and alkaline batteries. In services, it provides logistics, professional aviation training, and shared aircraft ownership programs. Additionally, it distributes televisions and information products, as well as grocery and non-food consumer products. Its utility segment generates electricity from diverse sources and operates natural gas infrastructure.

Berkshire Hathaway generates revenue through multiple segments. Its insurance operations collect premiums and earn investment income from float. The freight rail transportation business moves goods across North America, earning fees. The utility segment sells electricity and natural gas to customers. Manufacturing and service businesses sell products like chocolates, chemicals, homebuilding materials, and aerospace components. The company also earns from retail and distribution of electronics, groceries, and other consumer goods. Additionally, it provides lending and financial services related to home construction. This diversified model allows Berkshire Hathaway to generate income from various economic sectors, reducing reliance on any single source.