Riordan, Lewis &amp; HadenRiordan, Lewis &amp; Haden Riordan, Lewis & Haden RLH Equity Partners is a private equity firm based in Los Angeles that focuses on making investments in growing businesses. Sectors of particular investment interest to the firm include business services, healthcare, and government services. History. The firm was co-founded in 1982 by Chris Lewis and Richard Riordan. From inception through the late 1990s, RLH invested largely the capital of its principals. Based upon the track record compiled during that period, the firm expanded its capital base, starting in 1999 by raising private equity funds predominantly from institutional investors. Over the ensuing two decades, the total  committed capital of each of the firm's institutional funds, and the size of its professional staff, have grown steadily and in parallel. The firm's first institutional fund, raised in 1999, was $120 million, while its second (raised in 2006) was $265 million, the third (raised in 2012) was $380 million, and the fourth and most recent fund (raised in 2017) comprised $510 million of capital commitments. Investments. Some of RLH's notable current and past investments include: Riordan, Lewis & Haden RLH Equity Partners is a private equity firm based in Los Angeles that focuses