Companies
84 companies mentioned across Buffett's letters — organized by relationship to Berkshire Hathaway, sorted by number of mentions.
View full company index →Insurance — Float-Powered Core
Berkshire's insurance empire — the source of its structural competitive advantage
Wholly Owned — Railroad & Energy
Critical infrastructure businesses generating stable, long-duration cash flows
Wholly Owned — Consumer Goods
Branded consumer businesses with durable pricing power
Wholly Owned — Retail & Home
High-volume, low-cost retailers built on trust rather than advertising
Wholly Owned — Manufacturing
Industrial businesses with specialized expertise and embedded customer relationships
Wholly Owned — Media
Legacy media franchises that defined local information monopolies
Wholly Owned — Services & Finance
Diversified service businesses generating steady owner earnings
Wholly Owned — Aviation
Aviation training and fractional jet ownership businesses
Equity Investments
Significant stock investments — businesses Buffett owns without controlling
Historical Associations
Companies central to Berkshire's early history and structural evolution
Notable Case Studies
Investments Buffett documented as teaching examples — both wins and mistakes