EnCap Flatrock Midstream is a direct investment limited partner based in San Antonio, Texas. Established in 2008, the firm specializes in buyout and growth capital investments in start-up, early-stage to mid-stage companies. It was founded by Flatrock Energy Advisors and EnCap Investments. The private equity and venture capital firm seek to invest in the power, midstream energy infrastructure sector with a focus on natural gas, natural gas liquids, and crude oil. The assets of the firm are managed by the executive management team.