Mr. Mark R. Sotir serves as a Co-President at Equity Group Investments. Previously, he was Managing Director at the firm. Mr. Sotir works as a member of portfolio companies' leadership teams to develop and execute business strategy, setting goals, and establishing metrics. He serves on temporary assignment within select portfolio companies to increase the depth of his internal leadership in effectively executing a company's new direction. He specializes in combining financial and operations expertise to develop business strategies. Prior to EGI, Mr. Sotir served as the Chief Executive Officer of Sunburst Technology Corporation. He served as the President of North America, BRACC from January 1999 to December 1999 and its Senior Vice President of Operations from August 1998 to January 1999, Senior Vice President of Marketing from June 1997 to August 1998, Vice President of Marketing from June 1996 to June 1997 and Vice President of Revenue Management from April 1995 to June 1996. Prior to BRACC, he served as Marketing Manager of The Coca-Cola Company from August 1994 to April 1995 and Senior Production Manager from July 1993 to August 1994. He served as an Interim President of Interactive Inc. at Tribune Company from February 2008 to April 2008. He served on the boards of: CareerBuilder, Cars.com, QuadrantOne, and Metromix. He served as the President of Budget Group Inc. from January 2000 to 2003 and served as its Chief Operating Officer from May 3, 2000 to 2003. Mr. Sotir has been Executive Chairman of the Board and Director at Exterran Corporation since October 30, 2015. Mr. Sotir also serves as the Chairman of Veridiam and WRS Holding Company. He was the Chairman of Rewards Network Inc. He was an Executive Vice Chairman and Director of Rewards Network Inc. since January 2008. He served as an Executive Chairman of Archrock, Inc. (also known as Exterran Holdings, Inc.) from April 30, 2013 to November 3, 2015 and previously served as its Executive Vice Chairman from November 1, 2011 to April 30, 2013. He has been a Director of Sirva, Inc. since June 2010 and VIA marketer. He served as a Director of Archrock, Inc. from November 1, 2011 to November 3, 2015. He served as a Director of MiddleBrook Pharmaceuticals, Inc. since September 2008, Budget Group Inc. since February 12, 2002, Adams Respiratory Therapeutics, Inc. since April 19, 2007 and Sunburst. He has 15 years of C-level and board leadership experience across consumer and B2B industries. Mr. Sotir holds a BA in Economics from Amherst College and an MBA from Harvard Business School.