David Thomas

Credit Suisse Securities (USA) LLC (Credit Suisse Securities USA) is the broker/dealer division of Credit Suisse Securities (USA) LLC, an investment banking company headquartered in New York City. The firm was founded in 1998 and is a wholly owned subsidiary of Credit Suisse (USA), Inc., ultimately owned by Credit Suisse Group AG (SWX: CSGN) in Switzerland. Credit Suisse Securities USA offers a suite of equities, solutions and credit products and services which includes global securities sales, trading and execution, prime brokerage and comprehensive investment research. Their clients include financial institutions, corporations, governments, institutional investors, such as pension funds and hedge funds, and private individuals around the world.

J.F. Lehman & Co. (JF Lehman) is a private equity firm founded by John Francis Lehman, Donald Glickman and Keith E. Oster in 1992. The firm is headquartered in New York with an additional office in Arlington, Virginia.

Heritage-Crystal Clean, Inc. engages in the provision of parts cleaning and waste management services to the manufacturing and vehicle service sectors. It operates through the Environmental Services, and Oil Business segments. The Environmental Services segment includes parts cleaning, containerized waste management, vacuum truck services, antifreeze recycling activities, and field services. The Oil Business segment consists of used oil collection, recycled fuel oil sales, used oil re-refining activities, and used oil filter removal and disposal services. The company was founded by Joseph Chalhoub in 1999 and is headquartered in Hoffman Estates, IL.

Inland Pipe Rehabilitation LLC engages in the provision of underground pipe rehabilitation services. It offers trenchless rehabilitation services and technologies to repair and maintain critical water, wastewater and industrial pipe infrastructure. The firm's services include pipe bursting, cured in place pipe, expanda, sliplining, tv and sonar inspections and underground cleaning. The company was founded in 1973 and is headquartered in Conyers, GA.

NorthStar Group Holdings LLC provides environmental remediation and demolition services. The company is headquartered in New York, NY.

Lone Star Disposal LP provides waste management services. It offers roll off containers, waste compactors, hauling services, recycling and materials processing and disposal, and a range of construction soils and landscape materials. The company is headquartered in Houston, TX.

Trident Maritime Systems, Inc. is a full-service company that specializes in designing, fabricating, and installing maritime interior systems for cruise, military, energy, and commercial shipbuilders. The private company is based in Arlington, VA. The company provides creative solutions to complex challenges and cover the entire spectrum of maritime infrastructure needs. The CEO of the company is Thomas J. Eccles.