Rainier Partners Reviews & Profile

About Rainier Partners

Rainier Partners is a private equity firm in Seattle. It buys stakes in lower middle-market services companies and works alongside owners and management teams.

Services

Growth capital: funding to help portfolio companies expand.
Operational resources: hands-on support and expertise from an investing and operating team.
Strategic partnership: it often invests together with founders and managers.

Clients

Owners and managers of services businesses in four areas: business services, consumer services, industrial services and financial services. Portfolio and news items include Kleen-Tech Services, a janitorial firm operating in more than 30 states, Wilmar, a tool and equipment platform, and Pet Food Express.

Key facts

Based in: Seattle, Washington
Type: private equity
Market: lower middle market services

Profile written by TrustList from the business's own published information, Sep 2026.

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