Which company is Warren Buffett's investment conglomerate, headquartered in Omaha, Nebraska?

Berkshire Hathaway is Warren Buffett’s investment conglomerate, headquartered in Omaha, Nebraska.

Buffett began buying shares in the struggling textile company Berkshire Hathaway in the 1960s. After gaining control, he shifted the business away from textiles and toward insurance, investments, and ownership of operating companies.

Berkshire’s businesses have included GEICO, BNSF Railway, Berkshire Hathaway Energy, and numerous manufacturing, retail, and service companies. Its large public-equity portfolio has also made the company a closely watched investor in major corporations.

Berkshire Hathaway is not simply a mutual fund. It owns operating subsidiaries and takes stakes in public companies, while its insurance operations provide capital known as float. The company is also unusual among giant public corporations because it has two principal publicly traded share classes, Class A and Class B.