GCP Team

Marshall F. Wallach, Chairman

Marshall presides over GCP's Board of Managers. His career in management spans over forty-five years. Prior to commencing his investment banking career, he was Vice President of Planning for Great Western United, a Fortune 300 U.S. corporation. Marshall began his investment banking career with Boettcher & Company, where he became a General Partner, and was integral in developing the firm's corporate finance and merger departments. In 1984, Marshall founded The Wallach Company, an investment banking firm which, for sixteen years, planned and executed mergers, acquisitions, divestitures and financings for middle-market corporations across the U.S. In 2001, the firm was sold to KeyCorp. He is currently President of Wallach Capital Advisors which provides investment oversight services for affiliates of the Gates Family. He also serves as director on a number of other profit and nonprofit boards and is active in numerous community organizations.


Marshall earned a Bachelor of Arts (Economics) from Dartmouth College in 1965. He served in the U.S. Army as an officer for three years, and then earned an MBA from the Harvard Graduate School of Business Administration in 1970.

John Zimmerman, President

John was appointed President of Gates Capital Partners on January 1, 2018.  Prior to this appointment, he served on the Board of Managers of GCP in 2016 and 2017.  John is also President and Chief Investment Officer of Crosscreek Capital Group which provides investment oversight services for affiliates of the Gates Family.  He has been a Senior Advisor to Oakhill Capital Partners since 2015.  John served on the Board of Directors and was Chief Financial Officer of Gates Corp. until December 21, 2014.  Gates Corp. was a $3.0 billion, private equity backed, global manufacturing and engineering business based in Denver, CO.  He also served as a Main Board Director and Chief Financial Officer of Tomkins plc, (the parent company of Gates Corp.) and played a lead role in the public-to-private leveraged buyout of Tomkins in 2010.  Tomkins was a London based FTSE 100 and NYSE listed company.


John received a Bachelor of Commerce (Honors) degree from the University of Cape Town, South Africa and is a Chartered Accountant (S.A.).  Prior to joining Tomkins, he had extensive experience in public accounting, strategy consulting, corporate finance and mergers and acquisitions.

Karin Kissane
Managing Director, Private Equity

Karin brings eighteen years of private equity experience including four years experience making venture capital investments in software and Internet companies and twelve years making LP commitments to buyout, venture capital, growth equity, distressed debt, and secondary funds.  Since 2004 she has led the Gates family to launch its private equity program within Gates Capital Partners. Prior to working in the private equity field, Karin worked as a management consultant with Parthenon Consulting and Spire Group.


Karin earned a Bachelor of Science (International Relations) from Stanford University (1992) and an MBA from the Harvard Graduate School of Business Administration (1997) where she graduated with Second Year Honors and focused on entrepreneurial finance. 

Joan Akiyama
Private Equity Administrator

Joan joined Gates Capital Partners in 2012 and works directly with the Manager of Private Equity, Karin Kissane.  Joan has over 15 years experience as a paralegal in corporate and securities law, and recently worked for the University of Colorado Hospital, managing their nursing Continuing Education program.  Joan received a Bachelor of Arts (Business Administration) from the University of Wisconsin – Milwaukee in 1978.


Laurie Wopat 
Executive Assistant

Laurie Wopat works directly with John Zimmerman and joined the Gates offices in August of 2016.  Laurie has a 30-year career in business management, administration and business development.  Prior to joining the Gates offices, Laurie managed a private practice specializing in Oral and Maxillofacial Surgery with locations in Colorado and Kansas.


Laurie earned an Associate Degree in Interior Design from the Colorado Institute of Art in 1992.  She has had art work published in “Builder/Architect – Colorado Edition,” the “Fort Collins,” and advertisements for the Fort Collins Museum of Art.



Merial Currier

Merial is President of Gates Capital Management, LLC, the parent company of Gates Capital Partners. Prior to joining Gates Capital Management in 1998, she was responsible for managing private banking, trust and investments for a large bank. She was previously a practicing CPA in both Texas and Colorado specializing in the extractive industries, hospitality and financial services; and she served as the Chief Auditor for a large Colorado bank holding company. She serves on the Board of Trustees of the National Western Scholarship Trust, is a member of the National Western Junior Livestock Auction Committee and the Board of the Ricks Center for Gifted Children at the University of Denver. She is also actively involved with other non-profit organizations and has served on numerous other nonprofit boards and committees.

Merial holds a BSBA from the University of Denver. She is a member of the American Institute of Certified Public Accountants and represents Gates Capital Management in the Institute of Private Investors.

J. Landis ("Lanny") Martin

Lanny began his career at the Kirkland & Ellis law firm where he worked for 14 years, serving on its management and executive committees. Lanny then became CEO of several related NYSE listed companies during the next 18 years, including NL Industries (chemicals), Titanium Metals Corporation and Baroid Corporation (oil field services). In 2005 Lanny founded Platte River Ventures, a private equity firm investing in small to mid cap companies in aerospace, industrial services, metals, chemicals, agricultural and other market segments.

Lanny is lead director of four NYSE companies: Apartment Investment Management Company, Crown Castle International Inc. (cell towers), Intrepid Potash Inc., and Halliburton Company. Lanny has long been involved in the community and currently serves as Co-Chairman of the Denver Art Museum; Trustee of Northwestern University, Chair of Academic Affairs Committee; Chairman of the Bonfils Stanton Foundation; and Chairman Emeritus of Central City Opera House Association.

Lanny joined the GCP Board of Managers in 2011.

Lanny earned his B.S.B.A. (Economics) and J.D. at Northwestern University. He also served in the U.S. Army.

Diane Gates Wallach

Diane Wallach is a Manager and President of Cody Resources LP, a real asset investment company that focuses on energy and agribusiness. She also serves on the boards of Hat Creek Energy LLC, Gates Capital Partners, LLC and Bear Creek Inc., a private trust company. Previously, she worked for Citibank and held various positions at the Gates Rubber Company and Gates Corporation.

Within the community, Diane currently serves on the boards of the Gates Family Foundation and the Gates Frontiers Fund, both private Colorado-based charitable organizations, IAALS (Institute for the Advancement of the American Legal System, and Cardigan Mountain School. Previously, she served on the boards of Children's Hospital Colorado, Colorado Outward Bound School, Denver Art Museum Foundation, and Colorado Zoological Trust.

Diane earned both her bachelor's degree in human biology (1976) and master's degree in business administration (1983) from Stanford University.

Marshall F. Wallach (bio above)


Bringing them in: the daily round-up at
A-Bar-A Ranch.