AUSTIN, Texas & NEW YORK–(BUSINESS WIRE)–RRC Companies (“RRC” or the “Firm”), a leading provider of integrated engineering services specializing in utility-scale renewables power generation and battery storage, and New Mountain Capital, LLC (“New Mountain”), a leading growth-oriented investment firm, today announced a majority investment from funds managed by New Mountain to support the Firm’s continued growth amid increasing demand for electricity and investment in power infrastructure. RRC