Geico

American auto insurance company founded in 1936 by Leo Goodwin — which pioneered direct-to-consumer auto insurance (bypassing agents) — and which Warren Buffett first invested in after meeting Ben Graham's student Lorimer Davidson, eventually acquiring it fully for Berkshire Hathaway.

Built the direct-to-consumer insurance model — eliminating the agent commission by selling directly through mail and later phone — which created the cost structure advantage that made Geico consistently the lowest-cost auto insurer and one of Berkshire Hathaway's greatest investments.