Company Directory
John Steen
- Senior Managing Director
- Investment Team
John is a Senior Managing Director with Stonepeak and supports Stonepeak’s investments in the energy sector. Previously, John operated as Chief Executive Officer of two Stonepeak portfolio investments, including most recently West Texas Gas and previously Paradigm Energy Partners. Prior to Paradigm, John worked in various midstream business development capacities for Sage Midstream, Energy Transfer and LDH Energy. He is the vice chairman of the board of King Ranch, Inc. and the former chairman of the Texas Racing Commission, which oversees all pari-mutuel wagering on horse and greyhound racing in the state.
John graduated cum laude from Vanderbilt University and received a Master of Business Administration from the Wharton School as well as a Master of Arts in International Studies from the University of Pennsylvania. John is also a CFA charterholder.
Mara Swan
- Operating Partner
- Senior Advisors & Operating Partners
Mara is an Operating Partner with Stonepeak and supports Stonepeak’s investments with matters related to talent. Mara works with members of the Stonepeak team from across the firm to assess and provide advice and counsel on management, organization structure, diversity equity & inclusion, compensation design, and other talent priorities for potential new investments and existing portfolio companies.
Before joining Stonepeak, Mara spent almost fifteen years at ManpowerGroup where she was most recently EVP, Global Strategy and Talent and the leader of the Right Management business. She joined ManpowerGroup from the Molson Coors Brewing Company where she served as Chief People Officer for its global operations. She currently holds board positions at TRAC Intermodal, Uline, BrightView Holdings, and GOJO Industries.
Mara received a Bachelor of Business Administration from the University of Buffalo and a Master of Industrial Relations from the University of Minnesota.
John Trani
- Operating Partner
- Senior Advisors & Operating Partners
John is an Operating Partner with Stonepeak and supports Stonepeak’s general portfolio operations. Previously, John spent nineteen years at General Electric (1978-1997) where he gained broad experience across multiple businesses. At the time of his departure from GE, John served as President & Chief Executive Officer of GE Medical Systems where he reported directly to Jack Welch, the Chief Executive Officer of GE. John was tasked with running GE’s Mobile Communication Division during the 1980s. In his two years running the division, John increased cash flow by $80mm. The Mobile Communications Division role represented the start of a consistent rise for John through the ranks of GE, culminating in his role as Chief Executive Officer of GE Medical Systems. John also served as the Chairman and Chief Executive Officer of The Stanley Works from 1997 to 2003. Since leaving The Stanley Works, John has worked in various operating roles for private equity firms.
Kevin Walsh
- Operating Partner
- Senior Advisors & Operating Partners
Kevin is an Operating Partner with Stonepeak and supports Stonepeak’s investments in renewable energy. Kevin has more than thirty-five years of experience in the renewable energy sector and was most recently Managing Director and Head of U.S. Renewable Energy at GE Energy Financial Services (“GE-EFS”) from 2006-2019 where he led the team that invested $1-2 billion annually in renewable energy projects. Under Kevin’s leadership, GE-EFS successfully invested approximately $16 billion in renewable energy projects globally with the capacity to generate 16+ gigawatts of power, primarily from wind (onshore and offshore) and solar power but also hydro, geothermal and biomass. Kevin has also been active in various policy matters supporting the renewable energy industry including U.S. tax reform, PTC/ITC renewal and U.S. Treasury/IRS Guidance for new and repowered wind. Kevin is a member of the Board of Directors of ACORE and previously served as its Board Treasurer. He is also a member of the Board of Directors of the Connecticut Greenbank. In prior roles Kevin led Power and Renewable Energy investing at GE-EFS and was responsible for the management of its approximately $20 billion global portfolio of energy investments, as well as related portfolio sales and reinvestment. He also led energy venture investing for GE-EFS from 2007-2011. Kevin joined the predecessor of GE-EFS Financial Services, GE Structured Finance, in 1990, where he held various leadership positions in Energy, Capital Markets and GE Industrial.
Kevin graduated cum laude from Fairfield University, where he received a Bachelor of Business Management degree and where he currently serves on the Advisory Council at the Dolan School of Business. He is a graduate of General Electric’s Financial Management Program. Kevin is also a member of the Board of Directors of The Kennedy Center in Trumbull, CT.