Brenneman started his career at
Bain and Company, where he became one of the youngest partners in the firm's history. He left Bain to join
Continental Airlines as president and chief operating officer. Brenneman was appointed president and chief executive officer of
PwC Consulting in June 2002. His initial plan was to lead the separation of PwCs consulting business from its accounting & audit operations to avoid potential conflicts of interest where it serves as both the financial auditor and the consultant for a single company. However, IPO plans were quickly scrapped after an offer from IBM for $3.5B was received. The IBM PwC Consulting deal closed in October 2002. Brenneman remained with the company during a brief transitional period before returning to a private equity firm he founded in 1994, TurnWorks. Reuters said he was hired by Quiznos in Jan. 2007 as a "turnaround expert" due to his work with Burger King and Continental Airlines. Brenneman is the chairman of
CCMP Capital, an American private equity firm. He serves on the
board of directors of
The Home Depot, Inc.,
Baylor College of Medicine and
Automatic Data Processing. In August 2021, he purchased Porta'Vino restaurants in
Houston. ==Philanthropy==