Updated: Jun 04, 2014 9:37 PM UTC | Originally published: May 06, 2013
Apollo Global Management
Apollo Global Management is a global alternative investment manager headquartered in New York City. It raises, invests and manages funds on behalf of some of the world's most prominent pension and endowment funds as well as other institutional and individual investors.
Leucadia National Corp. is a holding company. In 2012 it began a merger with Jefferies that was finalized in March 2013.
Colfax Corp., based out of Fulton, Md., is a global industrial manufacturing and engineering company that develops, manufactures, engineers and services fluid handling systems.
Alleghany Corp. provides property, casualty reinsurance, insurance and financial services.
KKR is a global investment firm specializing in private equity.
Annaly Capital Management
Annaly Capital Management is a real estate investment trust that owns and manages a portfolio of mortgage-backed securities.
Superior Energy Services
Superior Energy Services, Inc. provides oil field services to oil and gas companies operating worldwide.
Energy Transfer Equity
Energy Transfer Equity started as a natural gas pipeline operator in Texas and now also works with NGLs, and crude oil and refined products.
Express Scripts Holding
Express Scripts is a prescription drug benefits manager. It acquired Medco in 2012, which more than doubled sales.
SandRidge Energy is an oil and gas company operating in northern Oklahoma, western Kansas. It also has assets in the Gulf of Mexico.
Nexeo Solutions Holdings
Nexeo Solutions is a Texas-based company that distributes chemicals, plastics, composites and environmental services.
Ecolab makes and distributes cleaning and sanitizing products.
The financial services provider's sales jumped to $81 billion in 2012.
Rock-Tenn manufactures packaging products, including recycled paperboard, containerboard, bleached paperboard and merchandising displays.
AGL Resources is a company specializing in natural gas distribution, marketing and energy services.
Centene Corp. provides healthcare programs and services to 17 states in the Northeast, South and Pacific Northwest.
United Rentals sells and rents commercial construction, HVAC and other heavy equipment.
Continental Resources is a U.S. petroleum liquid producer.
Calumet Specialty Products
Calumet Specialty Products is a refiner and processor of specialty hydrocarbon products.
Level 3 Communications
Level 3 Communications is an international communications company and a Tier 1 Internet provider based in Broomfield, Colo.
Green Mountain Coffee Roasters
Green Mountain Coffee Roasters is a coffee brand based in Waterbury, Vt. The company owns Keurig.
Groupon is a daily deals website that features a variety of goods and services.
Apple is a technology company that makes iEverything: computers, tablets, and phones.
Windstream, formerly known as Valor Communications, provides voice, broadband and entertainment services.
Verifone provides technology for electronic payment transactions and value-added services at the point of sale.