HarbourVest Partners, LLC is a private equity investment firm specializing in direct, fund of funds, and secondary indirect investments. Within direct investments, the firm makes private equity, venture capital, and mezzanine debt investments in established, growing companies at a variety of stages, including later-stage venture, growth equity, private debt–providing capital for senior debt and credit investments, special situations like turnarounds, buyout, management buyouts, and buyout co-investment opportunities. It also makes distressed debt investments.