Rainier Partners is a private equity firm. Based in Seattle, Washington, United States. Among the 6 companies in the known portfolio are AppOnboard, Mildang PT, Primemas, N-Dream, Pet Food Express and Wilmar.
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Investment focus
- Focus
- Business ServicesConsumer ServicesDataDeveloper APIsDeveloper ToolsIndustrial Services
Contacts
Who to pitch at Rainier Partners
Rainier Partners portfolio companies (6)
- AppOnboard
- Mildang PT
- Primemas
- N-Dream
- Pet Food Express
- Wilmar
Co-investors
Funds that share portfolio companies with Rainier Partners.
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About Rainier Partners
The firm's listing covers sectors Consumer and Education, and focus areas Business Services, Consumer Services, Data and Developer APIs; known deals cluster at Late-Stage, Seed and Series B.
Of the 4 people on file at Rainier Partners, Alex Rolfe (Co-Founder and Managing Partner), Jonathan A. (Managing Partner) and Beatrice Woodruff (Vice President) are listed as the contacts to approach first.
Across the known portfolio, 9 co-investors appear alongside Rainier Partners, including Shinhan Bank, Tiller Partners and Modern Times Group MTG AB.
Frequently asked questions
What is Rainier Partners?
Rainier Partners is a private equity firm based in Seattle, Washington, United States, with a known portfolio of 6 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Rainier Partners invest in?
Listed sectors include Consumer and Education; listed focus areas include Business Services, Consumer Services, Data and Developer APIs. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Rainier Partners invest at?
The known deals of Rainier Partners include Late-Stage, Seed and Series B rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Rainier Partners?
3 of the 4 people on file at Rainier Partners are listed as contacts for the firm. All 4 have their own profile page.
How do I contact Rainier Partners?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 4 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal