Operating Partners

Brian T. Clingen

Mr. Clingen is the Founder and Managing Partner of BP Capital Management. Previously, Mr. Clingen served as the Chief Executive Officer and Chairman of the Board of KAR Auction Services (“KAR”) until 2009 and 2014, respectively. Mr. Clingen originally invested in the purchase of Insurance Auto Auctions in 2004 and was on its board until its merger with KAR in 2007. Additionally, Mr. Clingen has served on the board for a number of public companies including Universal Outdoor, Inc. from 1988 to 1998 and Endo Pharmaceuticals from 2002 to 2006. Mr. Clingen is a certified public accountant and earned an undergraduate degree in finance from the University of Notre Dame and master’s degree in business from the Kellogg School of Management at Northwestern University.

Eric Foss

Mr. Foss served as Chief Executive Officer of Aramark from 2012 to 2019. When joining Aramark as the Chief Executive Officer in 2012, Mr. Foss was tasked with overseeing its initial public offering, and leading a strategic transformation and repositioning of the business. During his time at Aramark, Mr. Foss accelerated growth by repositioning the brand portfolio, improving the customer experience by implementing a repeatable business model, and reconceptualizing the Aramark supply chain to achieve operational excellence and industry-leading margin improvements. Mr. Foss completed the two largest acquisitions in the company’s history, the acquisitions of AmeriPride Services Inc. and Avendra LLC, which added scale and improved Aramark’s competitive positioning, leading to significant stakeholder value creation. Prior to his time at Aramark, Mr. Foss served as Chief Executive Officer of Pepsi Beverages Company and served as Chief Executive Officer of Pepsi Bottling Group (“PBG”) while being elected to the PBG board in 2006 and named Chairman in 2008. Mr. Foss has been a member of the board of Cigna, Member of Business Roundtable, WSJ CEO Council, Catalyst and on the National Board of Back on My Feet. Mr. Foss holds a B.S. in Marketing from Ball State University.

Fred Buttrell

Mr. Buttrell is the former Chief Executive Officer of Air Medical Group Holdings (“AMGH”), a company which he grew from a regional air medical company of 42 bases to the world’s largest provider of air medical services with 350 base locations across 40 states, as well as growing its ground medical transportation operation to the world’s largest with 240 base locations across 42 states. Mr. Buttrell’s impact on AMGH resulted in a Fortune 1000 company. Prior to joining AMGH, Mr. Buttrell spent 10 years in the commercial airline industry as the President and Chief Executive Officer of Comair Airlines and Chief Executive Officer of Delta Connection. As a Captain in the United States Air Force, Mr. Buttrell was awarded and recognized for several prestigious accomplishments, which include his role as a mission commander during Operation Desert Storm and Operation Southern Watch, his 100% success rate with no losses while deployed, being selected to brief President George H.W. Bush on the F-15E combat systems, and the award of Top Gun of his fighter squadron. Mr. Buttrell holds a B.S. from the Air Force Academy and an M.B.A. from the Southern Methodist University Cox School of Business.

Gerald C. Rittenberg

From 1997 until 2014, Mr. Rittenberg served as Chief Executive Officer of Party City Holdco Inc. (formerly known as Amscan Inc.), the largest designer, manufacturer, and distributor of party goods in the United States. Mr. Rittenberg began his career at Amscan in 1989 and served in various roles, including Chief Executive Officer, and subsequently as its Executive Chairman from 2014 until 2017. When Mr. Rittenberg was named CEO in 1997, the company had approximately $200 million of revenue. Upon its initial public offering in 2015, the company had revenue of approximately $2.3 billion and an enterprise valuation of approximately $3.8 billion. Mr. Rittenberg holds a B.A. in communications from Lynn University.

Dr. William Joyce

Dr. Joyce has served as the Chairman and Chief Executive Officer of Advanced Fusion Systems since 2008. Prior to his time at Advanced Fusion Systems, Dr. Joyce was the Chief Executive Officer and Chairman of Nalco from November 2003 to December 2007 and the Chief Executive Officer and Chairman at Hercules Incorporated from 2001 to 2003. Prior to Hercules, he had a distinguished career at Union Carbide where he served as Chief Executive Officer and Chairman of the Board. Upon Union Carbide’s merger with Dow Chemical Company in 2001, Dr. Joyce was named Vice Chairman of Dow Chemical. Dr. Joyce has served on a number of boards such as Hexion Holdings, El Paso Corporation, CVS Caremark Corporation, Reynolds Metals and Momentive Performance Material Holdings Inc. Dr. Joyce has received numerous accolades, including the National Medal of Technology Award in 1993 from President Bill Clinton, the Plastics Academy’s Lifetime Achievement Award in 1997, and the Society of Chemical Industry Perkin Medal Award in 2003. Dr. Joyce holds a B.S. in Chemical Engineering from Pennsylvania State University and an M.B.A. and Ph.D. from New York University.