Known by some as a "miniature Berkshire," Leucadia National is a U.S.-based holding company with a diverse range of assets, from mining to banking. Executives Ian Cumming and Joseph Steinberg each own over 10% of Leucadia, and their subsidiary, WMAC Investment, has strong ties to Bill Ackman's Pershing Square. Leucadia also owns National Beef Packing Company, Jefferies, and has a joint ownership of Berkadia Commercial Mortgage with Berkshire Hathway itself.