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 / Summit Partners, L.P.

Summit Partners, L.P.

Private equity with venture activity · probableBoston, MAsummitpartners.comSEC registered investment adviser

At Summit Partners we provide capital and resources to power the growth of category-leading companies as a growth-focused private equity investor.

registered adviser; venture funds are 0% of 76 private funds

Importance
70
high
Active deployment
40
elevated
Emerging
0
low
Completeness
88
high
Freshness
100
high
Research priority
14
low
Identity and regulatory footprint
Headquarters
Boston, MAadviserinfo.sec.gov
Office address
222 BERKELEY STREET, Boston, MA, 02116-3748adviserinfo.sec.gov
Business phone
617-824-1000adviserinfo.sec.gov
SEC adviser type
registered investment adviseradviserinfo.sec.gov
SEC exemption claimed
unknown
Latest Form ADV
Sep 30, 2024
Private funds reported
76 (0 venture capital funds)adviserinfo.sec.gov
Private fund gross assets
$35Badviserinfo.sec.govreported GAV of the funds, the adviser's own number; not fund size, not dry powder
Regulatory AUM
$35Bthe adviser's RAUM, a regulatory measure, never a fund size
Employees
205
Owners on Schedule A
Summit Master Company, LLC (General Partner), NA
business phone
617-824-1000adviserinfo.sec.govpublished by the subject
Stated thesis versus observed behaviour
4 observed deals
Stated (the firm’s website)
Sectors
ai, healthcare, biotech, consumer, space, cybersecurity, media
Stages
growth
Geography
boston, global, new york
Check size
not stated; DFX does not estimate checks from round sizes
Self-described
growth investor
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 67%follow-on rate 0%new logos, 12 months 4
Funds and vehicles
21 reported
VehicleTypeVintageLifecycleReported GAVOwnersForm D soldLatest Form D
Summit Partners GE XIIFund2025 lp reportedEarly deploymentunknownunknownunknownunknown
Summit Partners Growth Equity Fund XII, L.PGrowth fund2024 lp reportedEarly deploymentunknownunknownunknownunknown
Summit Partners Europe Growth Equity Fund IV, SCSpGrowth fund2024 lp reportedEarly deploymentunknownunknownunknownunknown
Summit Growth Equity Fund XII, LPGrowth fund2024 lp reportedEarly deploymentunknownunknownunknownunknown
Summit Partners Growth Equity XIIGrowth fund2024 lp reportedEarly deploymentunknownunknownunknownunknown
Summit Partners GE XII AFund2024 lp reportedEarly deploymentunknownunknownunknownunknown
Summit Partners Europe GE IIIFund2021 lp reportedMatureunknownunknownunknownunknown
Summit Partners Growth Equity Fund XIGrowth fund2021 lp reportedMatureunknownunknownunknownunknown
Summit Partners Venture Capital Fund V-A LPFeeder or parallel2021 lp reportedMatureunknownunknownunknownunknown
Summit Partners VC Fd V-A L.PFeeder or parallel2021 lp reportedMatureunknownunknownunknownunknown
Summit Partners Growth Equity XGrowth fund2020 lp reportedMatureunknownunknownunknownunknown
Summit Partners Growth Equity Fund X-AGrowth fund2019 lp reportedMatureunknownunknownunknownunknown
Summit Partners Europe Growth Equity Fund II, SCSPGrowth fund2018 lp reportedHarvestunknownunknownunknownunknown
Summit Partners Growth Eqty Fd IX-A,L.PGrowth fund2017 lp reportedHarvestunknownunknownunknownunknown
Summit Partners Venture Capital Fund IV-A, L.PFeeder or parallel2016 lp reportedHarvestunknownunknownunknownunknown
Summit Partners Growth Equity Fund IXGrowth fund2015 lp reportedHarvestunknownunknownunknownunknown
Summit Partners Credit Fund B-2, L.PFund2014 lp reportedHarvestunknownunknownunknownunknown
Summit Partners Venture Capital Fund III-A, L.PFeeder or parallel2012 lp reportedHarvestunknownunknownunknownunknown
Summit Partners Venture Capital III-AFeeder or parallel2012 lp reportedHarvestunknownunknownunknownunknown
Summit Partners Growth Equity Fund VIIIGrowth fund2011 lp reportedHarvestunknownunknownunknownunknown
Summit Partners Private Equity Fund VII-A, L.PFeeder or parallel2006 lp reportedHarvestunknownunknownunknownunknown
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
128 current, 14 departed
David H. Schiller
Managing Director and Chief Investor Relations Officer
Investor relations
Max Miller
Vice President, Investor Relations
Investor relations
Yoon K. Lee
Partner and Head of International Investor Relations
Investor relations
Adam Hugh Hennessey
Chief Financial Officer & Limited Partner · since Jul 1, 2018
Platform and operations
Jonah Bookman
Vice President, Growth Marketing
Platform and operations
Mark F. Hexamer
Principal, Growth Products & Services Human Capital
Principal
14 departed (kept with end dates)
Investments on record
4 edges, 4 companies, 2 partner-attributed
CompanyRoundRolePartnerRound sizeThis investorDateSource
Cancer Insightportfolio listingunknownunknownunknownunknownSep 16, 2026Fact Venture organization websites (about, team, portfolio, thesis, news pages)
KeyfactorFunding roundleadAndy Collins (confirmed)$1.0BunknownJul 6, 2026Fact Press release wires (Business Wire, PR Newswire, GlobeNewswire public RSS)
RunpodFunding roundleadMichael Medici (confirmed)$100MunknownJun 24, 2026Fact Press release wires (Business Wire, PR Newswire, GlobeNewswire public RSS)
onXStrategic InvestmentparticipantunknownunknownunknownNov 3, 2025Fact Press release wires (Business Wire, PR Newswire, GlobeNewswire public RSS)
“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
3 relationships from shared deals, counted for the whole firm
Limited partners
47 disclosed
Timeline
39 dated events
  1. Jun 30, 2026
    MSBI reports Summit Partners Growth Equity XII: $250,000,000 committed, vintage 2024
  2. Jun 30, 2026
    MSBI reports Summit Partners Growth Equity Fund XI: $250,000,000 committed, vintage 2021, net IRR 5.9%, 1.13x
  3. Jun 30, 2026
    MSBI reports Summit Partners Growth Equity Fund X-A: $150,000,000 committed, vintage 2019, net IRR 11.4%, 1.53x
  4. Jun 30, 2026
    MSBI reports Summit Partners Growth Equity Fund IX: $100,000,000 committed, vintage 2015, net IRR 21.7%, 1.97x
  5. Jun 30, 2026
    MSBI reports Summit Partners Growth Equity Fund VIII: $100,000,000 committed, vintage 2011, net IRR 25.3%, 2.33x
  6. Dec 31, 2025
    APFC reports Summit Partners Growth Equity Fund XII-A LP: $70,000,000 committed
  7. Dec 31, 2025
    APFC reports Summit Partners Reinvestment Fund LP: $15,020,970 committed, vintage 2021
  8. Jun 30, 2025
    CalSTRS reports Summit Partners Europe PE Fund: $58,692,473 committed, vintage 2009, net IRR 18.5%, 2.62x
  9. Jun 30, 2025
  10. Mar 31, 2025
    NYSCRF reports Summit Partners Co-Invest (Liberty), LP: $200,000,000 committed, vintage 2024
  11. Dec 30, 2024
    NYSCRF commits $200,000,000 to Summit Partners Co-Invest (Liberty), L.P. (Summit Partners), closed 2024-12-30, existing relationship
  12. Oct 1, 2024
    NYSCRF commits $250,000,000 to Summit Partners Growth Equity Fund XII, L.P. (Summit Partners), closed 2024-10-01, new relationship
  13. Mar 28, 2023
    Bruce Roger Evans (Limited Partner) no longer on Schedule A of Summit Partners, L.P.
  14. Mar 28, 2023
    Thomas Scott Roberts (Limited Partner) no longer on Schedule A of Summit Partners, L.P.
  15. Mar 28, 2023
    Robin Winters Devereux (Chief Administrative Officer) no longer on Schedule A of Summit Partners, L.P.
  16. Dec 1, 2022
    Christopher John Dean joined Schedule A of Summit Partners, L.P. as Limited Partner
  17. Mar 30, 2021
    Charles James Fitzgerald (Limited Partner) no longer on Schedule A of Summit Partners, L.P.
  18. Jul 1, 2019
    Erin Helen White joined Schedule A of Summit Partners, L.P. as Chief Compliance Officer
  19. Feb 1, 2019
    Martin Joseph Mannion joined Schedule A of Summit Partners, L.P. as Board Member
  20. Feb 1, 2019
    Darren Michael Black joined Schedule A of Summit Partners, L.P. as Board Member
  21. Jul 1, 2018
    Adam Hugh Hennessey joined Schedule A of Summit Partners, L.P. as Chief Financial Officer
  22. Mar 30, 2018
    James Richard Westra (Personal Representative Of The The Estate Of Joseph F. Trustey) no longer on Schedule A of Summit Partners, L.P.
  23. Mar 30, 2018
    Walter German Kortschak (Limited Partner) no longer on Schedule A of Summit Partners, L.P.
  24. Mar 30, 2018
    Martin Joseph Mannion (Limited Partner) no longer on Schedule A of Summit Partners, L.P.
  25. Mar 30, 2018
    Robert G. Bannish (Personal Representative Of The The Estate Of Joseph F. Trustey) no longer on Schedule A of Summit Partners, L.P.
  26. Aug 1, 2017
    John Robert Carroll joined Schedule A of Summit Partners, L.P. as Board Member
  27. Aug 1, 2017
    Craig David Frances joined Schedule A of Summit Partners, L.P. as Board Member
  28. Aug 1, 2017
    Thomas Hungerford Jennings joined Schedule A of Summit Partners, L.P. as Board Member
  29. Aug 1, 2017
    Charles James Fitzgerald joined Schedule A of Summit Partners, L.P. as Limited Partner
  30. Mar 30, 2016
    Joseph Francis Trustey (Limited Partner) no longer on Schedule A of Summit Partners, L.P.
  31. Oct 2, 2015
    Stephen Gilbert Woodsum (Board Member) no longer on Schedule A of Summit Partners, L.P.
  32. Aug 1, 2015
    Robert G. Bannish joined Schedule A of Summit Partners, L.P. as Personal Representative Of The The Estate Of Joseph F. Trustey
  33. Aug 1, 2015
    James Richard Westra joined Schedule A of Summit Partners, L.P. as Personal Representative Of The The Estate Of Joseph F. Trustey
  34. Apr 1, 2013
    Gregory Milton Avis (Limited Partner) no longer on Schedule A of Summit Partners, L.P.
  35. Apr 1, 2013
    Edward Roe Stamps (Limited Partner) no longer on Schedule A of Summit Partners, L.P.
  36. Mar 30, 2012
    Summit Partners, L.P. first filed Form ADV (IA)
  37. Aug 1, 1999
    Thomas Scott Roberts joined Schedule A of Summit Partners, L.P. as Limited Partner
  38. Aug 1, 1999
    Scott Charles Collins joined Schedule A of Summit Partners, L.P. as Limited Partner
  39. Aug 1, 1999
    Bruce Roger Evans joined Schedule A of Summit Partners, L.P. as Limited Partner
Classification history
  1. Sep 12, 2026
    Private equity with venture activity (probable, 75%, cls-1)
    registered adviser; venture funds are 0% of 76 private funds
Evidence
72 observations from 2 sources
Every observation behind this profile, with its source, date and class
FactValueEffectiveClassSource
SEC adviser typeregistered_investment_adviserSep 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
First Form ADV filing2012-03-30Sep 30, 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 filing2024-09-30Sep 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Venture share of reported funds0Sep 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Business phone617-824-1000Sep 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Contact page urlhttps://www.summitpartners.com/contact
contact page linked from the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
DescriptionAt Summit Partners we provide capital and resources to power the growth of category-leading companies as a growth-focused private equity investor.
meta description
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
DescriptionAt Summit Partners we provide capital and resources to power the growth of category-leading companies as a growth-focused private equity investor.
meta description
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Employees205Sep 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
HeadquartersBoston, MASep 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Office address222 BERKELEY STREET, Boston, MA, 02116-3748Sep 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Self-described typegrowth_investor
Summit Partners Recognized as a Top Growth Equity Firm
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Self-described typegrowth_investor
Summit Partners Recognized as a Top Growth Equity Firm
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Portfolio pagehttps://www.summitpartners.com/portfolio
1 entries read
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Portfolio pagehttps://www.summitpartners.com/portfolio
1 entries read
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Private funds reported76Sep 30, 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)$35BSep 30, 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)$35BSep 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Stated geographyboston,global,new york
geography words on the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated geographyboston,global,new york
geography words on the home page
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated sectorsai,healthcare,biotech,consumer,space,cybersecurity,media
sector words on the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated sectorsai,healthcare,biotech,consumer,space,cybersecurity,media
sector words on the home page
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated stagesgrowth
stage words on the home page
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Stated stagesgrowth
stage words on the home page
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Team pagehttps://www.summitpartners.com/team
116 name/title pairs read
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Team pagehttps://www.summitpartners.com/team
116 name/title pairs read
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Venture funds reported0Sep 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
WebsiteHTTP://WWW.SUMMITPARTNERS.COMSep 30, 2024FactSEC Form ADV filing data 2011 to 2024 (every filing, Schedule D 7.B.(1) private funds, Schedules A/B)
Site titleSummit Partners | Growth Equity | Home
title tag
Sep 16, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)
Site titleSummit Partners | Growth Equity | Home
title tag
Sep 13, 2026FactVenture organization websites (about, team, portfolio, thesis, news pages)