Sole Source Capital adds new operating partner to team

Sole Source Capital has appointed Ruth Dreessen as an operating partner. She is the former managing director at Lion Chemical Partners.


SANTA MONICA, Calif.–(BUSINESS WIRE)–Sole Source Capital LLC (“SSC” or the “Firm”), an industrial-focused private equity firm providing capital to North American lower-middle market companies, today announced the appointment of Ruth Dreessen as an Operating Partner.

Ms. Dreessen brings decades of experience in private equity, investment banking and industry, driving change and improved performance across a range of chemicals and energy businesses. In her role as Operating Partner at SSC, Ms. Dreessen will work closely with the Firm’s investment team, as well as SSC’s seasoned group of operating partners, to support portfolio company management teams as they execute their value creation plans and drive value for SSC’s investors.

“Throughout her career, Ruth has been an agent for transformation, advancing excellence across business functions,” said David Fredston, Founder and Managing Partner of Sole Source Capital. “I am confident that her experience and relationships will be immediately impactful, furthering our industry insights to the benefit of our investors and the management teams with which we partner. I look forward to working together as we build on the Firm’s recent momentum and capitalize on the attractive opportunities ahead.”

“SSC’s uniquely collaborative partnership culture, blend of management and financial skills, and unmatched commitment to operational excellence sets the Firm apart,” said Ms. Dreessen. “I am eager to join this talented team and leverage my complementary experience to enhance the work SSC does in growing companies in the industrial sector and delivering value to investors.”

About Ms. Dreessen
Ms. Dreessen serves as the Chairman of the Board of Directors at Gevo, a renewable technology, chemical products, and next-generation biofuels company and joined the Board of Directors at Andeavor Logistics, a diversified midstream logistics company, in 2018. From 2010 through 2018, Ms. Dreessen served as a Managing Director at Lion Chemical Partners, a private equity firm focused on chemical and related industries. Prior to joining Lion Chemical Partners, Ms. Dreessen served as the Executive Vice President and Chief Financial Officer of TPC Group from 2005 to 2010. Before joining TPC Group, she served as Senior Vice President, Chief Financial Officer and Director of Westlake Chemical Corporation, an international manufacturer and supplier of petrochemicals, polymers and building products. Ms. Dreessen spent 21 years at JP Morgan Securities and predecessor companies, ultimately as a Managing Director of chemicals investment banking. Ms. Dreessen received a bachelor’s degree in European history from New College of Florida and a Master of International Affairs from Columbia University.

About Sole Source Capital
Founded in 2016 by David Fredston and an experienced group of private equity professionals, Sole Source Capital LLC (“SSC”) is an operationally-focused lower-middle market investment firm that targets investments in manufacturing, distribution, and industrial service companies. SSC seeks to partner with founder-owned businesses and capitalize on opportunities with a higher degree of complexity, including corporate carve-outs and management buy-outs. The firm is headquartered in Santa Monica, California. For more information on SSC, please visit or contact