Rainier Partners
General contacts
Investor type
PE
Founded
2020
AUM
$400 M
Location
Seattle, Washington, United States
Investor profile last updated: 30 March, 2026
Profile
Rainier Partners is a private equity firm rooted in the Pacific Northwest that invests in businesses in the lower middle market, primarily in the Western US and Canada. Rainier’s principals have deep experience investing in businesses across verticals including Business Services, Financial Services, Industrial Services and Consumer Services. Rainier’s approach is to develop a partnership with owners and management teams, combined with an open, collaborative form of communication, that allows businesses to accelerate their profit growth.
Industry
Rainier Partners Funds
| Name | Type |
|
|
|
Size | AUM | Launch date |
|---|---|---|---|---|---|---|---|
|
Rainier Partners Fund I
|
Private Equity (PE)
|
Business Services (B2B)
Consumer Products
Consumer Services (B2C)
Education
Financial Services
Fintech
Healthcare Services
Industrial
Real Estate
Logistics
|
Series B
Late Stage (Series C+)
|
North America
|
$5-10 m
|
$300 M
|
February 2023
|
Contacts
Name
Title
Email
Social Networks
Investment-team contacts for Rainier Partners — including verified work emails and LinkedIn profiles — are available to Private Equity List subscribers.
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Instant access on the web. Plans from $129/month — see pricing.
Contacts sourced from the firm's website and LinkedIn, re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.
FAQs about Rainier Partners
Is Rainier Partners a venture capital or private equity firm?
Rainier Partners is a private equity firm. It backs companies at Series B and Late Stage (Series C+), writing tickets of $10-50 m.
Where is Rainier Partners located?
Rainier Partners is located in Seattle, Washington, United States.
When was Rainier Partners founded?
Rainier Partners was founded in 2020.
What sectors and industries does Rainier Partners invest in?
Rainier Partners invests in companies and startups in Business Services (B2B), Education, Financial Services, Fintech, Industrial, Real Estate, Logistics, Consumer Products, Consumer Services (B2C), Healthcare Services.
What is Rainier Partners geographical focus of investments?
Rainier Partners invests in companies and startups in North America.
At what stages of companies and startups does Rainier Partners typically invest in?
Rainier Partners invests in companies and startups at Series B, Late Stage (Series C+).
What is the usual amount of Rainier Partners investment?
Rainier Partners usually invests $10-50 m on average.
What is the amount of assets of under management (AUM) for Rainier Partners?
Rainier Partners has around $400m assets under management.
When was Rainier Partners last fund created?
Rainier Partners last fund was created/launched in 2023-02-16
What are the contacts of Rainier Partners?
Rainier Partners can be reached through its website www.rainierpartners.com and its LinkedIn page. Its general enquiries address is info@rainierpartners.com. Cold-mailing a general inbox rarely reaches a partner, so Private Equity List also lists the investment-team contacts for Rainier Partners — names, roles, verified work emails and LinkedIn profiles — available on a Pro plan from $129/month (see pricing). Contacts are sourced from the firm's website and LinkedIn and re-verified on a rolling cycle. Spot a stale contact, or none at all? Report it — we re-run that firm within 48h and get back to you.
Can I access Rainier Partners data via API or MCP?
Yes. Every field on this page — profile, funds, investment criteria, portfolio and investment-team contacts — is available programmatically through the Private Equity List REST API and MCP server, so AI assistants such as Claude and ChatGPT can query Rainier Partners directly instead of scraping this page. One subscription covers both the web app and machine access — see API & MCP.
When was the Rainier Partners profile last updated?
Private Equity List re-verifies investor profiles on a rolling cycle, pulling from the firm's own website and LinkedIn rather than a one-off import. This profile was last updated on 30 March, 2026. Something out of date here? Report it — we re-run that firm within 48h and get back to you.