John Collins

Rio Energy Investment Holdings LLC provides energy services. The company was founded in 2012 and is headquartered in Boston, MA.

Petra Funds Group LLC is a fund administration provider that offers comprehensive fund administration and related middle and back-office services to private equity, venture capital, and private debt funds. The private company is based in New York, NY and partners with fund managers throughout their ESG journey, ensuring they have credible ESG policies and processes that stand up to regulatory scrutiny and enhance their reputation in the eyes of investors. Petra's services include fund administration, investor servicing, regulatory compliance, management company services, and ESG advisory services. The company was founded by Peter Haskopoulos and Stephen S. Coats.

Advent International LP (Advent) is an independent private equity firm founded in 1984 by Henry H. Haight. The firm is headquartered in Boston, Massachusetts.

Denham Capital Management LP (Denham Capital) is a private equity firm founded by Stuart Denham Porter, Riaz Qamar Siddiqi and Carl John Tricoli. The firm is headquartered in Boston, Massachusetts.

Capital Resource Partners (Capital Resource Partners) is a private equity firm founded in 1987 by Robert C. Ammerman. The firm is headquartered in Boston, Massachusetts.