About Rainier Partners
Rainier Partners is a private equity firm founded in 2020. It is primarily based in Seattle, United States. As of Oct 2026, Rainier Partners has a portfolio of 7 companies, comprising 7 funding rounds and 3 acquisitions. The firm primarily invests in companies based in United States. Its portfolio is spread across a wide range of sectors from Industrial Goods and Manufacturing to Financial Services. Most recently it acquired stakes in Kleen-Tech on Sep 04, 2025.
Overall Rainier Partners portfolio has seen 4 acquisitions, namely Anytime Fitness, Kleen-Tech and Calpine Containers.
Rainier Partners has a team of 16 people, including 3 partners.
Key Metrics
Founded Year
2020
Location
Seattle, United States
Portfolio Companies
Portfolio Sectors
Portfolio Locations
Acquisition Deals
Investment Deals
Rainier Partners' Portfolio
Rainier Partners has a portfolio of 7 companies. They have invested in a total of 7 companies. Their most recent investment was in WPAS (PE round) on Dec 19, 2024. Here are the most recent investments by Rainier Partners:Date | Company | Round | Amount | Co-Investors |
|---|---|---|---|---|
Dec 19, 2024 | PE | 9645 | - | |
Oct 2023 | Series A | 2718 | - | |
Jul 11, 2023 | PE | 6650 | - | |
Jun 08, 2022 | PE | 4556 | - |
Rainier Partners has acquired 3 companies. Their most recent acquisition was of Kleen-Tech on Sep 04, 2025. Here are the most recent acquisitions by Rainier Partners:
Acquisition Date | Company | Short Description | Total Funding | Founded Year |
|---|---|---|---|---|
Sep 04, 2025 | Provider of commercial cleaning services | - | 1990 | |
Oct 05, 2021 | Provides agricultural packaging products | - | 2002 | |
Apr 13, 2021 | Manufacturer and distributor of packaging containers and bags | - | 1895 |
Here is the portfolio snapshot of Rainier Partners:
Investments by Year
The maximum number of investments were made in 2023
Acquisitions by Year
The maximum number of acquisitions were made in 2021
Portfolio by Location
Companies are primarily in United States
Portfolio by Sector
Companies are primarily in Industrial Goods and Manufacturing
Team profile of Rainier Partners
Rainier Partners has a team of 16 members including 3 Partners and 6 Principals located in United States. Rainier Partners' team does not sit on the board of any company as of now.Here is a list of top team members in Rainier Partners:
Name | Designation | Location | Board Memberships | Contact Details |
|---|---|---|---|---|
Partner | Seattle | - | ||
Partner | Seattle | - | ||
Partner | San Jose | - | ||
Principal | Los Angeles | - | ||
Principal | Seattle | - | ||
Principal | Seattle | - | ||
Principal | Seattle | - | ||
Principal | Seattle | - | ||
Principal | Seattle | - | ||
Associate | - | - | ||
Associate | Seattle | - |
Rainier Partners News
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Rainier Partners Invests in Janitorial Services Provider Kleen-TechCleanlink•Sep 12, 2025•Kleen-Tech, Rainier Partners
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Rainier Partners Acquires Kleen-Tech Services, a National Janitorial Services ProviderTMC•Sep 04, 2025•Kleen-Tech, Rainier Partners
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Rainier-Backed SCI Flooring Acquires Flooring PartnersBusiness Wire•Aug 05, 2025•Rainier Partners, Flooring Partners, sciflooring.com
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Rainier Partners backs Welfare & Pension Administration ServicePE Hub•Dec 19, 2024•WPAS, Rainier Partners
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Omega Fitness and Rainier Partners Acquire MDS Fitness Gyms in WisconsinSGB Media•Sep 26, 2024•Rainier Partners, The Omega Fitness
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Rainier Partners adds United Carpet to portfolioPrivate Equity Wire•Nov 30, 2023•Rainier Partners, SCI Floor Covering, United Carpet
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United Carpet Joins Rainier-Backed Flooring Platform SCI FlooringBusiness Wire•Nov 29, 2023•United Carpet, sciflooring.com, Rainier Partners
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Rainier Partners Backs Preeminent Anytime Fitness Franchisee, Omega FitnessTullahoma News•Nov 16, 2023•Rainier Partners, The Omega Fitness
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SCI Flooring in Romulus Lands Majority Investment From Rainier PartnersDbusiness•Jul 24, 2023•SCI Floor Covering, Rainier Partners
