Wilfried Ernst Kaffenberger

Duquesne Light Holdings, Inc. engages in the generation, transmission, distribution, and sale of electric energy through its subsidiaries. The company was founded in 1989 and is headquartered in Pittsburgh, PA.

Duquesne Light Co. produces and supplies electricity. The company is headquartered in Pittsburgh, PA.

Heathrow Airport Holdings Ltd. engages in the operation of an airport. The firm owns and runs London Heathrow Airport. The company was founded in 1966 and is headquartered in Hounslow, the United Kingdom.

HanaroTelecom, Inc. provides telephone and broadband internet connection services. It also provides web and mail hosting and internet roaming services. Subsidiaries of the company include Hanaro Realty Development & Management Co. Ltd., Hanaro T&I, Inc., Hanaro Dream Co. Ltd. The company also operates call centers across Korea. HanaroTelecom, founded in 1997 is headquartered in Seoul, Korea.

International Finance Corp. (IFC) operates as a global development institution. It is an organization that fosters sustainable economic growth in developing countries by financing private sector investment, mobilizing capital in the international financial markets and providing advisory services to businesses and governments. The firm operates through three segments: Investment Services, Treasury Services and Advisory Services. The Investment Services segment offers loans, equities, debt securities, trade and supply chain finance and client risk management services. The Treasury Services segment consists of the borrowing, liquid asset management, asset and liability management, and client risk management activities. The company was founded in 1956 and is headquartered in Washington, DC.

Founded in 1982 by Moeen Qureshi and Donald Roth, EMP Global LLC is a private equity firm located in Washington, DC with additional offices in Hong Kong, Bahrain and Brunei

AEI Services LLC generates, transmits, and distributes natural gas and electricity. Its business segment includes power distribution, power generation, natural gas transportation and services and natural gas distribution. The company was founded in 2003 and is headquartered in Houston, TX.