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Private company

Advantage Partners

Advantage Partners is a Japanese company, founded in 2005.1 Its website says: “Advantage Partners are the first Private Equity fund in Japan. Since the establishment in 1997, we have led the PE fund business in Japan.”4

株式会社アドバンテッジパートナーズ（英: Advantage Partners Inc.）は、日本の投資会社。ベイン・アンド・カンパニー出身の2名によって設立されたプライベート・エクイティ・ファンドである。2 From the Japanese Wikipedia, CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Sep 13, 2005Founded1

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Corporate structure

Advantage Partners sits at the top of its group. 1 entity, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of Advantage Partners

  • Taisuke Sasanuma Owns 5% to 10% of Advantage Partners, since 09/2022 (Form ADV)
  • Catherine Marie Watters Sasanuma Owns 5% to 10% of Advantage Partners, since 09/2022 (Form ADV)
  • Rlf Spoke Holdings, LLC Owns 25% to 50% of Advantage Partners, since 09/2022 (Form ADV)
  • Tc Jupiter Investments, LLC Owns 10% to 25% of Advantage Partners, since 09/2022 (Form ADV)
  • Christopher Kosuke Sasanuma Owns 5% to 10% of Advantage Partners, since 12/2023 (Form ADV)
  • Julia Yoshino Sasanuma Owns 5% to 10% of Advantage Partners, since 09/2022 (Form ADV)
  • Andrew Shinsuke Sasanuma Owns 5% to 10% of Advantage Partners, since 09/2022 (Form ADV)
  • Alexandra Masano Sasanuma Owns 5% to 10% of Advantage Partners, since 12/2023 (Form ADV)
  • Richard Folsom Owns 75% or more of Rlf Spoke Holdings, LLC Member, since 09/2018 (Form ADV)
  • Tokyo Century Corp Owns 75% or more of Tc Jupiter Investments, Member LLC, since 10/2019 (Form ADV)
  • Advantage Partners

Built from major holders from Schedules 13D and 13G; 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

Advantage Partners 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.

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).

  • RLF SPOKE HOLDINGS, LLCowns 25% to 50%, since 09/2022
  • TC JUPITER INVESTMENTS, LLCowns 10% to 25%, since 09/2022
  • Alexandra Masano Sasanumaowns 5% to 10%, since 12/2023
  • Andrew Shinsuke Sasanumaowns 5% to 10%, since 09/2022
  • Catherine Marie Watters Sasanumaowns 5% to 10%, since 09/2022
  • Christopher Kosuke Sasanumaowns 5% to 10%, since 12/2023
  • Julia Yoshino Sasanumaowns 5% to 10%, since 09/2022
  • Taisuke Sasanumaowns 5% to 10%, since 09/2022
  • Richard Folsomowns 75% or more of RLF SPOKE HOLDINGS, LLC MEMBER, since 09/2018
  • TOKYO CENTURY CORPORATIONowns 75% or more of TC JUPITER INVESTMENTS, MEMBER LLC, since 10/2019

Timeline

  1. Sep 13, 2005Founded Founded1

Sources

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

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