We invest in and
help build great businesses
Rainier Partners is a Seattle-based private equity firm with over $400 million in assets under management investing in lower middle-market services businesses. We look for opportunities where we can actively support business owners and management teams by providing growth capital, operational resources, and strategic partnership.
Learn more about our firm and the types of investments we make.Our investments come with a partnership mentality—we are straightforward, efficient, and relationship-oriented. We are an active partner. We roll up our sleeves to provide significant support, expertise, and financial resources to accelerate growth and build value.
Learn more about our approach to building value.We focus on industries where we can be most helpful to our portfolio companies. These are industries in which we have extensive experience, a network of partners, and deep resources: business services, consumer services, industrial services, and financial services. When we invest, we often do so alongside the founders and management teams of our portfolio companies.
Learn more about our portfolio companies.Our most important investment is the team we are actively building at Rainier. Our group is made up of driven, smart, hard-working, and humble individuals with experience across investing and operations. We’re a relationship-driven firm centered on a culture of entrepreneurship.
Learn more about our team.
Seattle, WA (July 14, 2025) ¬- Rainier Partners, a private equity firm investing in lower middle-market services businesses, is pleased to announce the promotions of Henry Anderson and Luke Bench to Principal and Dave Shephard to Executive Director. Henry joined the Rainier team in 2020 and is a Principal. Prior to Rainier, Henry served as… Read More
Seattle, WA (December 19, 2024) - Rainier Partners, a private equity firm investing in lower middle-market services businesses, is pleased to announce its investment in Welfare & Pension Administration Service (“WPAS”), a third-party administration (TPA) firm specializing in multi-employer benefit plan administration. Based in Mercer Island, WA, WPAS has a 70+ year history of dedicated,… Read More
Seattle, WA (September 25, 2024) - Rainier Partners, a private equity firm investing in lower middle-market services businesses, and its portfolio company Omega Fitness are pleased to announce the acquisition of 21 gyms in Wisconsin from MDS Fitness. Along with additional tuck-ins and new gym openings, this acquisition adds to Omega’s position as the fastest-growing Anytime… Read More
We’re always looking for great people and great businesses to become market leaders in their sectors.
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