Joost Thesseling

CI Capital Partners LLC (CI Capital Partners) is a private equity firm founded in 1993 by Frederick Iseman. The firm is headquartered in New York.

Valley National Gases LLC distributes liquefied industrial gases and welding equipment. The company was founded in 1958 and is headquartered in Wheeling, WV.

Engelhard Corp. is a surface and materials science company that provides technologies for environmental, process, appearance and performance applications. It enables customers to improve the productivity of their processes with a wide range of technologies available, it serves a broad range of chemical market segments, including petrochemicals, oleochemicals and fine chemicals.

PricewaterhouseCoopers LLC provides assurance, tax and advisory services. Its services include audit and assurance, consulting, deals, human resources, legal, tax, and family business. The firm also offers accountability, risk management, structuring, mergers and acquisitions, and performance and process improvement. The company was founded in 1998 and is headquartered in Buffalo, NY.

Ply Gem Holdings, Inc. manufactures exterior building products. The company was founded in 2004 and is headquartered in Cary, NC.

Ply Gem Industries, Inc. designs and manufactures residential interior and building products. It offers siding, steel siding, windows, doors, stone, trim, fence and rail, roofing, gutters, and accents. The company was founded in 1943 and is headquartered in Cary, NC.

Barentz supplies and distributes specialty chemicals and ingredients. It supplies specialty resins, additives, pigments, and packaging to customers in the paint and coatings, sealants and adhesives, and graphic arts industries. The company was founded by Anthony P. Maroon in 1977 and is headquartered in Avon, OH.