Mark Dirzulaitis

Advent International LP (Advent) is an independent private equity firm founded in 1984 by Henry H. Haight. The firm is headquartered in Boston, Massachusetts.

Goldman Sachs & Co. LLC (GS&Co.) is a securities brokerage firm headquartered in New York City. Founded in 1927, the firm is a subsidiary of The Goldman Sachs Group, Inc. (NYSE: GS). GS&Co. provides services to help hedge funds manage risk, monitor portfolios, maintain liquidity and build their businesses. They offer clients access to global equity and derivatives markets, as well as foreign exchange, commodities, European Lefts, rates and credit across the Americas, Europe and Asia. The firm proactively monitors capital markets, searching for pockets of liquidity and news that may require changes to those strategies. Integration with the Goldman Sachs network gives clients access to the firm's sectored block trades and their insights into price discovery. Their electronic trading program provides clients with tools to manage their trades from pre-trade analytics to post-trade analysis.

VCP I Inc (VCP) is a private equity firm, a subsidiary of Vestar Management Corp. II founded in 1988 by Norman W. Alpert, Daniel S. O’Connell and Robert L. Rosner. The firm is headquartered in New York.

American Securities LLC (American Securities) is a private equity firm founded in 1994 by Michael Gerald Fisch and Charles D.Klein. The firm is headquartered in New York, United States.