David Edelmaier

Stone & Webster, Inc. provides engineering, construction, consulting and related services. The company clients include petrochemical, refining, power, industrial and governmental sectors. The company was founded in 1889 by Charles Augustus Stone and Edwin Sibley Webster. It is headquartered in Stoughton, MA.

Kinder Morgan G.P., Inc. owns and manages energy transportation and storage assets. The firm also delivers gasoline, diesel fuel, jet fuel, and natural gas liquids to various markets. The company was founded in 1992 and is headquartered in Houston, TX.

Carnegie Mellon University is an American school that operates as a college or university. It is located in Pittsburgh, Pennsylvania.

General Atlantic LLC (General Atlantic) is a private equity firm founded in 1980 by Charles F. Feeney. The firm is headquartered in New York.

Goldman Sachs Asset Management LP (GSAMLP) is a SEC-registered investment advisor headquartered in New York City. The firm is a wholly owned subsidiary of GSAM Holdings LLC, and their ultimate parent is Goldman Sachs Group, Inc. (NYSE: GS). Founded in 1988, GSAMLP provides investment solutions to a range of individual and institutional investors worldwide.

Duke University is an academic university that offers undergraduate, graduate and professional programs. It also has publications and research services. The university was founded in 1838 and is headquartered in Durham, NC.

Part of Kinder Morgan, Inc., El Paso Field Services Co. transports, stores, and supplies natural gas. The company is based in Houston, TX.

Ariel Research Corp. develops chemical regulatory software. It provides research and regulatory data, information systems and services for regulatory compliance, global environmental, health and safety management solutions. The company's global regulatory content, products and comprehensive services provides solutions to help optimize EHS operations while reducing costs. Ariel Research was founded in 1989 and is headquartered in McLean, VA

COMSYS IT Partners, Inc. provides information technology and management services. It offers contingent and direct hire placement of IT professionals. The company was founded on December 12, 2005 and is headquartered in Dallas, TX.

Silverhawk Capital Partners LLC (Silverhawk Capital Partners) is a private equity firm founded in 2005 by Ted Allan Gardner, James Crawford Cook, David James Scanlan and Mark Charles Demetree. The firm is headquartered in Greenwich, Connecticut.

Main Street Capital Partners LLC(Main Street Capital Partners) is a private equity firm founded in 1990 by Vincent Foster. The firm is headquartered at Houston, Texas.

SCF Partners LLC (SCF Partners) is a private equity subsidiary of SCF Partners, Inc. founded in 1989 by L.E. Simmons. The firm is headquartered in Houston, Texas.

Kidder, Peabody & Co., Inc. provides security brokerage services. The private company is based in Buffalo, NY and has subsidiaries in Switzerland. The company was founded by Thomas W. Ostrander.

Price Gregory Services is a leading provider of infrastructure services with focus on pipeline construction and related services. The Company was formed through the merger of H.C. Price and Gregory & Cook Construction, two of the largest contractors with the equipment and capability to build large diameter pipelines. The Company's history stretches to the beginning of oil pipeline construction industry, with predecessor companies involved in the construction of the first 'Big Inch' pipeline during World War II. In addition, the Company has worked internationally in the Middle East, Africa, and Mexico. Price Gregory is currently focused in North America with a presence in the Lower 48, Canada, and Alaska (including the North Slope).

Select Energy Services LLC operates as an oil and gas service company. The firm offers water solutions and environmental, well completions & intervention and facilities construction & engineering services. The company was founded in 2008 and is headquartered in Houston, TX.

B. S. C. Holding, Inc. provides and distributes rock salt and deicing products. It owns and operates a vertically-integrated rock salt mine located in Lyons, Kansas. The company was founded on December 14, 1982 and is headquartered in Shawnee Mission, KS.

Summit Materials LLC manufactures construction materials. It uses its materials internally to produce ready-mixed concrete and asphalt paving mix. The firm operates through the following segments: West, East, and Cement. The company was founded by Thomas W. Hill in 2009 and is headquartered in Denver, CO.

Kissner Milling Co. Ltd. engages in the manufacture and distribution of rock salt and packaged specialty deicing products. The company was founded in 1878 and is headquartered in Kitchener, Canada.

Westinghouse Corp. is an American company that specializes in providing safe and innovative nuclear and other clean power technologies and services. With over 135 years of innovation, Westinghouse is the preferred partner for advanced technologies covering the complete nuclear energy life cycle. The private company supplied the world's first commercial pressurized water reactor in 1957, and its technology is the basis for nearly one-half of the world's operating nuclear plants.

Part of Archrock, Inc., Exterran Energy LLC is a company that manufactures equipment for oil and natural gas production, processing, and transportation. The company is based in Houston, TX.

Summit Materials Holdings LP operates as a holding company. The firm provides construction materials in the public infrastructure, residential and non residential markets. The company was founded in 2009 and is headquartered in Denver, CO.

American In-Home Care LLC provides elder care services. Its services include companionship, homemaker, alzheimer’s and dementia care, veterans aid and attendance, safety and security, light housekeeping, respite care, grocery shopping, hygiene, grooming, bathing physical assistance, and assistance with eating. The company was founded in September 2013 and is headquartered in Alpharetta, GA.

Incline Niobrara Partners LP engages in the provision of oil and gas field exploration services. The company was founded in 2015 and is headquartered in Dallas, TX.

Part of CSI Compressco LP, CSI Compressco GP LLC provides compression services and equipment for natural gas and oil production, gathering, transportation, processing, and storage. The company is based in Santa Fe, NM. The company offers gas processing mechanical refrigeration units that use a chilled medium to condense natural gas liquids from the process gas stream. The company also provides an electric compression solution, the VJack Compression Package, which is more environmentally friendly than their GasJack. The CEO of the company is John Earl Jackson.

Meridian Chemicals LLC distributes chemical products. Its products include crude tall oil, calcium chloride and PAVSAV. The company was founded in 2015 and is headquartered in Overland Park, KS.

SCIH Salt Intermediate Holdings, Inc. manufactures chemicals, plastics, and rubber products. The private company is based in Overland Park, KS and has subsidiaries in the United States. The CEO of the company is Mark Charles Demetree.