A holding company is a company or firm that owns other companies' outstanding stock. The term usually refers to a company which does not produce goods or services itself; rather, its purpose is to own shares of other companies. Holding companies allow the reduction of risk for the owners and can allow the ownership and control of a number of different companies. In the United States, 80% or more of stock, in voting and value, must be owned before tax consolidation benefits such as tax-free dividends can be claimed.
Sometimes a company intended to be a pure holding company identifies itself as such by adding "Holdings" or "(Holdings)" to its name, as in Sears Holdings Corporation.
United States 
In the United States, Berkshire Hathaway is the largest publicly traded holding company; it owns numerous insurance companies, manufacturing businesses, retailers, and other companies. Two other large notable holding companies are United Continental Holdings and AMR Corporation, whose primary purposes are to wholly own United Airlines and American Airlines, respectively. In some instances, holding companies have held capital for pending investments.
In US broadcasting, many major media conglomerates have purchased smaller broadcasters outright, but have not changed the broadcast licenses to reflect this, resulting in stations that are (for example) still licensed to Jacor and Citicasters, effectively making them such as subsidiary companies of their owner Clear Channel Communications. This is sometimes done on a per-market basis; for example in Atlanta both WNNX and later WWWQ are licensed to "WNNX LiCo, Inc." (LiCo meaning "license company"), both owned by Susquehanna Radio (which was later sold to Cumulus Media). In determining caps to prevent excessive concentration of media ownership, all of these are attributed to the parent company, as are leased stations, as a matter of broadcast regulation.
Personal holding company 
- Gross income test: At least 60% of the corporation's adjusted ordinary gross income is from dividends, interest, rent, and royalties.
- Stock ownership test: More than 50% in value of the corporation's outstanding stock is owned by five or fewer individuals.
Parent company 
A parent company is a company that owns enough voting stock in another firm (subsidiary) to control management and operations by influencing or electing its board of directors. A parent company could simply be a company that wholly owns another company. This would be known as a "wholly owned subsidiary".
See also 
- Bank holding company
- Dubai World
- Investment company
- Airline holding companies
- Patent holding company
- Public Utility Holding Company Act of 1935
- Samuel Insull
- Shell corporation
- Emergence of Electrical Utilities in America, Smithsonian Institute, National Museum of American History
- UK Holding Companies
- KPMG article – Hong Kong as a Holding Company location
- Incorporate a holding company in Hong Kong
- I.R.C. § 1504(a); I.R.C. § 243(a)(3).
- "The PHC Trap". New York State Society of Certified Public Accountants. Retrieved 2010-07-27.