Rainier Partners Email Format
Venture Capital and Private Equity PrincipalsWashington, United States11-50 Employees
Rainier Partners is a private equity firm based in Seattle, rooted in the Pacific Northwest. It targets lower middle-market companies primarily across the Western United States and Canada, with investments spanning Business Services, Financial Services, Industrial Services, and Consumer Services. The firm emphasizes forming partnerships with owners and management teams and relies on open, collaborative communication to support profit growth. In 2025, Rainier Capital Partners LP completed the acquisition of Kleen-Tech Services, a national janitorial services provider, expanding its services platform. Its activity reflects a focus on the lower middle-market within the services ecosystem and a collaborative approach to developing portfolio companies.