Firms, funds, partners, companies and rounds from sworn filings, firm sites and announcements, kept as a graph with a date and a source on every edge. Facts, inferences and estimates are labelled as such. A fund target is never a close, GAV is never dry powder, and a round size is never an investor’s check.

Firms / Rainier Capital Partners LP

Rainier Capital Partners LP

Private equity with venture activity · probableSeattle, WArainierpartners.comSEC registered investment adviser

Rainier Partners is a Seattle-based private equity firm 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.

registered adviser; venture funds are 0% of 3 private funds

Importance
34
moderate
Active deployment
26
moderate
Emerging
0
low
Completeness
75
high
Freshness
100
high
Research priority
11
low
Identity and regulatory footprint
Headquarters
Seattle, WAadviserinfo.sec.gov
Office address
1111 3RD AVENUE, SUITE 3030, Seattle, WA, 98101-3296adviserinfo.sec.gov
Business phone
206-880-3413adviserinfo.sec.gov
Website
https://www.rainierpartners.com/
SEC adviser type
registered investment adviseradviserinfo.sec.gov
SEC exemption claimed
unknown
Latest Form ADV
Mar 29, 2024
Private funds reported
3 (0 venture capital funds)adviserinfo.sec.gov
Private fund gross assets
$313Madviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
Regulatory AUM
$313Mthe adviser's RAUM, a regulatory measure, never a fund size
Employees
11
Owners on Schedule A
Rainier Capital Partners GP LLC (General Partner), E
business email
recruiting@rainierpartners.comrainierpartners.compublished by the subject
business email
info@rainierpartners.comrainierpartners.compublished by the subject
business email
recruitment@rainierpartners.comrainierpartners.compublished by the subject
business phone
206-880-3413adviserinfo.sec.govpublished by the subject
Stated thesis versus observed behaviour
7 observed deals
Stated (the firm’s website)
Sectors
consumer, industrial
Stages
not stated or not yet read
Geography
colorado, denver, seattle
Check size
not stated; DFX does not estimate checks from round sizes
Observed (from deals on record)
Stage at participation: no observed deals yet
Stage at first entry: no observed deals yet
Sectors
unknown 100%
lead rate n/afollow-on rate n/anew logos, 12 months 7
Funds and vehicles
3 reported
VehicleTypeVintageLifecycleReported GAVOwnersForm D soldLatest Form D
Rainier Partners Fund I-A, LPFund · ADV: Private Equity Fund2021 form d first saleMature$116M
Mar 29, 2024
9$286M
of $286M
Dec 22, 2022
Rainier Partners Investments I, LPFund · ADV: Private Equity Fund2021 form d first saleMature$7.7M
Mar 29, 2024
7$17.3M
of $17.3M
Apr 15, 2021
Rainier Partners Fund I, LPFund · ADV: Private Equity FundunknownUnknown$189M
Mar 29, 2024
22unknownunknown
GAV is the gross asset value the adviser reported on Form ADV for the vehicle, never the fund’s committed size and never dry powder. Form D sold is the amount sold as of the latest filing, never a final close.
Investment team
18 current, 0 departed
Analyst
FactVenture organization websites (about, team, portfolio, thesis, news pages)
Analyst
FactVenture organization websites (about, team, portfolio, thesis, news pages)
Jed Kim
Analyst
Analyst
FactVenture organization websites (about, team, portfolio, thesis, news pages)
Analyst
FactVenture organization websites (about, team, portfolio, thesis, news pages)
Jessa Moomaw
Associate
Associate
FactVenture organization websites (about, team, portfolio, thesis, news pages)
Nikky Soni
Associate
Associate
FactVenture organization websites (about, team, portfolio, thesis, news pages)
Alex Rolfe
Co-Founder and Managing Partner
Managing partner
FactVenture organization websites (about, team, portfolio, thesis, news pages)
Jon Altman
Co-Founder and Managing Partner
Managing partner
FactVenture organization websites (about, team, portfolio, thesis, news pages)
Alex John Rolfe
Member · since Feb 1, 2020
Partner
FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Jonathan David Altman
Member · since Feb 1, 2020
Partner
FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Benjamin Robert Painter
Chief Financial Officer · since Sep 1, 2023
Platform and operations
FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Darren West
Head of Finance
Platform and operations
info@rainierpartners.com (published by the subject)FactVenture organization websites (about, team, portfolio, thesis, news pages)
Dave Shephard
Executive Director of Portfolio Operations
Platform and operations
FactVenture organization websites (about, team, portfolio, thesis, news pages)
Frank Robert Galea
Chief Compliance Officer · since Jan 1, 2023
Platform and operations
FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Principal
FactVenture organization websites (about, team, portfolio, thesis, news pages)
James Whittle
Director of Business Development
Principal
FactVenture organization websites (about, team, portfolio, thesis, news pages)
Principal
FactVenture organization websites (about, team, portfolio, thesis, news pages)
Lucas Bench
Principal
Principal
FactVenture organization websites (about, team, portfolio, thesis, news pages)
Investments on record
7 edges, 7 companies, 0 partner-attributed
CompanyRoundRolePartnerRound sizeThis investorDateSource
Kleen Techportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Omega Fitnessportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Pet Food Expressportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Sci Flooringportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Welfare Pension & Administration Service (“WPAS”)portfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Wilmar Corporationportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
Wpasportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
“This investor” is the amount disclosed for this investor alone; it is unknown unless a source said it. The round size is the whole round.
Co-investors
0 relationships from shared deals, counted for the whole firm
No co-investor relationship yet: these are derived only from rounds and portfolio listings the graph has seen both investors on.
Limited partners
0 disclosed
No LP commitment on record. An LP edge needs a public disclosure with a quote: a pension report (see Limited partners for the plans read), a fund announcement naming the LP, or a Form ADV owner. The fund page carries the LP’s reported performance.
Timeline
6 dated events
  1. Sep 1, 2023
    Benjamin Robert Painter joined Schedule A of Rainier Capital Partners LP as Chief Financial Officer
    Person joinedPeopleFactBenjamin Robert PainterSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
  2. Jan 1, 2023
    Frank Robert Galea joined Schedule A of Rainier Capital Partners LP as Chief Compliance Officer
    Person joinedPeopleFactFrank Robert GaleaSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
  3. Mar 4, 2022
    Rainier Capital Partners LP first filed Form ADV (ERA)
    First SEC adviser filingOrganizationFactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
  4. Mar 4, 2022
    Rainier Partners Fund I-A, LP first reported on Form ADV by Rainier Capital Partners LP (Private Equity Fund), GAV $32,200,000
    Fund first reported on Form ADVFundsFactRainier Partners Fund I-A, LPSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
  5. Mar 4, 2022
    Rainier Partners Investments I, LP first reported on Form ADV by Rainier Capital Partners LP (Private Equity Fund), GAV $19,786,885
    Fund first reported on Form ADVFundsFactRainier Partners Investments I, LPSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
  6. Mar 4, 2022
    Rainier Partners Fund I, LP first reported on Form ADV by Rainier Capital Partners LP (Private Equity Fund), GAV $85,400,000
    Fund first reported on Form ADVFundsFactRainier Partners Fund I, LPSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Classification history
  1. Sep 12, 2026
    Private equity with venture activity (probable, 75%, cls-1)
    registered adviser; venture funds are 0% of 3 private funds
Evidence
32 observations from 2 sources
Every observation behind this profile, with its source, date and class
FactValueEffectiveClassSource
SEC adviser typeregistered_investment_adviserMar 29, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
First Form ADV filing2022-03-04Mar 29, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Adv history loadedadv-hist-1Sep 12, 2026FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Latest Form ADV filing2024-03-29Mar 29, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Venture share of reported funds0Mar 29, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Business phone206-880-3413Mar 29, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Contact page urlhttps://www.rainierpartners.com/contact/
“contact page linked from the home page”
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
DescriptionRainier Partners is a Seattle-based private equity firm 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.
“meta description”
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
DescriptionRainier Partners is a Seattle-based private equity firm 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.
“meta description”
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Employees11Mar 29, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
HeadquartersSeattle, WAMar 29, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Office address1111 3RD AVENUE, SUITE 3030, Seattle, WA, 98101-3296Mar 29, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Portfolio pagehttps://www.rainierpartners.com/portfolio/
“7 entries read”
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Portfolio pagehttps://www.rainierpartners.com/portfolio/
“7 entries read”
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Private funds reported3Mar 29, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Private fund gross assets (reported)$313MMar 29, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Regulatory AUM (adviser, not fund size)$313MMar 29, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Stated geographycolorado,denver,seattle
“geography words on the home page”
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated geographycolorado,denver,seattle
“geography words on the home page”
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated sectorsconsumer,industrial
“sector words on the home page”
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated sectorsconsumer,industrial
“sector words on the home page”
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Team pagehttps://www.rainierpartners.com/team/
“14 name/title pairs read”
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Team pagehttps://www.rainierpartners.com/team/
“14 name/title pairs read”
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Venture funds reported0Mar 29, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Websitehttps://www.rainierpartners.com/Mar 29, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Site titleRainier Partners - Private Equity Firm - We invest in and help build great businesses.
“title tag”
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Site titleRainier Partners - Private Equity Firm - We invest in and help build great businesses.
“title tag”
Sep 15, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)