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Private company

SUMMIT PARTNERS L P

American company, incorporated in Delaware. Summary from the record

Last updated Oct 21, 2026.

Overview

  • HeadquartersDE1

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Corporate structure

SUMMIT PARTNERS L P sits at the top of its group. 16 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of SUMMIT PARTNERS L P

  • Peter Y Chung Owns 5% to 10% of Summit Partners L P, since 08/1999 (Form ADV)
  • Scott Charles Collins Owns 5% to 10% of Summit Partners L P, since 08/1999 (Form ADV)
  • John Robert Carroll Owns 5% to 10% of Summit Partners L P, since 08/2017 (Form ADV)
  • Craig David Frances Owns 5% to 10% of Summit Partners L P, since 08/2017 (Form ADV)
  • Christopher John Dean Owns 5% to 10% of Summit Partners L P, since 12/2022 (Form ADV)
  • Darren Michael Black Owns 5% to 10% of Summit Partners L P, since 12/2021 (Form ADV)
  • Martin Joseph Mannion Owns control (general partner, trustee or manager) of Summit Master Company, LLC Member, since 02/2019 (Form ADV)
  • SUMMIT PARTNERS L P DE
    • SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC Subsidiary · Boston, Massachusetts, United States
      • Summit Partners Alpineer L/S Master Fund, L.P. Fund · Boston, Massachusetts, United States
      • SUMMIT PARTNERS CG K2 QP FUND, L.P. Fund · Wilmington, Delaware, United States
      • Summit Partners CG Olympus QP Fund, L.P. Fund · Boston, Massachusetts, United States
      • Summit Partners Concentrated Growth L/S Master Fund, L.P. Fund · Boston, Massachusetts, United States
      • Summit Partners Sustainable Opportunities L/S Fund Limited Fund · Boston, Massachusetts, United States
      • SUMMIT PARTNERS SUSTAINABLE OPPORTUNITIES L/S FUND, L.P. Fund · Boston, Massachusetts, United States
      • SUMMIT PARTNERS SUSTAINABLE OPPORTUNITIES L/S QP FUND, L.P. Fund · Boston, Massachusetts, United States
      • SUMMIT PARTNERS TECHNOLOGY L/S MASTER FUND, L.P. Fund · Boston, Massachusetts, United States
    • A.K.A. BRANDS HOLDING CORP. Stake · San Francisco, California
    • A10 Networks Stake · San Jose, California, United States
    • EngageSmart, Inc. Stake · Braintree, Massachusetts
    • Klaviyo Stake · Boston
    • LifeStance Health Group, Inc. Stake · Scottsdale, Arizona
    • Solo Brands, Inc. Stake · Grapevine, Texas, United States

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); major holders from Schedules 13D and 13G; stakes of 5% or more it reported on Schedules 13D and 13G (6 companies); owners and owned firms from Form ADV, the registration investment advisers file with the SEC. Each entity in the chart links to its source.

Investment adviser

SUMMIT PARTNERS L P is registered with the SEC as an investment adviser. This is what it reports on Form ADV, the registration every adviser files and keeps current.

  • Assets it manages$42.0B2 87 accounts, all with discretion
  • Employees218 118 in investment advice or research
  • ClientsPooled investment vehicles (other than investment companies and: 87 ($42.0B)
  • How it is paidA percentage of assets under its management; Performance-based fees
  • What it doesPortfolio management for pooled investment vehicles (other than investment companies)
  • Holds client assetsYes: cash and securities
  • RegistrationSEC 801-64273, CRD 135271 IAPD record

Who owns it

Owners of 5% or more as the firm lists them (Schedule A), and the owners of those owners up the chain (Schedule B).

  • Darren Michael Blackowns 5% to 10%, since 12/2021
  • John Robert Carrollowns 5% to 10%, since 08/2017
  • Peter Y Chungowns 5% to 10%, since 08/1999
  • Scott Charles Collinsowns 5% to 10%, since 08/1999
  • Christopher John Deanowns 5% to 10%, since 12/2022
  • Craig David Francesowns 5% to 10%, since 08/2017
  • Darren Michael Blackowns general partner, trustee or manager of SUMMIT MASTER COMPANY, LLC MEMBER, since 02/2019
  • John Robert Carrollowns general partner, trustee or manager of SUMMIT MASTER COMPANY, LLC MEMBER, since 08/2017
  • Peter Y Chungowns general partner, trustee or manager of SUMMIT MASTER COMPANY, LLC MEMBER, since 11/2011
  • Scott Charles Collinsowns general partner, trustee or manager of SUMMIT MASTER COMPANY, LLC MEMBER, since 09/2015
  • Christopher John Deanowns general partner, trustee or manager of SUMMIT MASTER COMPANY, LLC MEMBER, since 11/2024
  • Craig David Francesowns general partner, trustee or manager of SUMMIT MASTER COMPANY, LLC MEMBER, since 08/2017
  • Martin Joseph Mannionowns general partner, trustee or manager of SUMMIT MASTER COMPANY, LLC MEMBER, since 02/2019

Filings

25 filings to the SEC since October 2021: 25 other. The latest 20:

  1. Aug 24, 2026N-PX EDGAR
  2. Jul 30, 202613F-HR EDGAR
  3. May 8, 202613F-HR EDGAR
  4. Feb 6, 202613F-HR EDGAR
  5. Nov 4, 202513F-HR EDGAR
  6. Nov 4, 202513F-HR/A EDGAR
  7. Aug 28, 2025N-PX/A EDGAR
  8. Aug 25, 2025N-PX EDGAR
  9. Jul 16, 202513F-HR EDGAR
  10. May 5, 202513F-HR EDGAR
  11. Feb 4, 202513F-HR EDGAR
  12. Oct 31, 202413F-HR EDGAR
  13. Aug 22, 2024N-PX EDGAR
  14. Jul 18, 202413F-HR EDGAR
  15. May 15, 202413F-HR EDGAR
  16. Jan 12, 202413F-HR EDGAR
  17. Oct 24, 202313F-HR EDGAR
  18. Jul 21, 202313F-HR EDGAR
  19. Apr 20, 202313F-HR EDGAR
  20. Feb 13, 202313F-HR EDGAR

The 25 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Stakes it holds

SUMMIT PARTNERS L P has told the SEC it owns more than 5% of 6 companies, latest first (Schedules 13D and 13G).

Sources

The numbers on this page point here. Each one links to the record it came from.

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