HiJoJo Partners Appoints Brett Mock as CEO of US Subsidiary, Strengthening Investment Sourcing in the US with Former Nasdaq Private Market Chairman's Participation
HiJoJo Partners has appointed Brett Mock, former Chairman of Nasdaq Private Market, as CEO of its US subsidiary to bolster its investment sourcing capabilities in the United States. This move aims to expand access to global private markets and enhance HiJoJo's platform connecting Japanese investors with international private companies.
📋 Article Processing Timeline
- 📰 Published: May 12, 2026 at 01:00
- 🔍 Collected: May 11, 2026 at 16:32
- 🤖 AI Analyzed: May 11, 2026 at 16:58 (25 min after Collected)
HiJoJo Partners Inc. (hereinafter, HiJoJo) is pleased to announce the appointment of Mr. Brett Mock as CEO of its U.S. subsidiary, HiJoJo Management Company Inc., with the aim of strengthening its business development in the United States.
Background and Purpose
HiJoJo established its U.S. base in March 2026, reinforcing its system for providing global private market investment opportunities. In particular, investment opportunities in middle and late-stage companies, including unicorns, continue to expand primarily in the United States, making the strengthening of local deal sourcing capabilities a crucial management challenge.
By welcoming Mr. Brett Mock, who possesses extensive experience and a robust network in the U.S. capital and private markets, as CEO, we aim to further enhance collaboration with the local investment ecosystem and improve our capabilities in discovering and structuring promising investment opportunities.
About Mr. Brett Mock
Mr. Brett Mock has over 30 years of experience in the capital markets and private investment sectors, having served as Chairman of Nasdaq Private Market (NPM). He has been deeply involved in the development of unlisted stock trading and secondary markets in the United States.
HiJoJo has previously built a relationship with Nasdaq Private Market through a capital and business alliance, and Mr. Mock's participation is positioned to further deepen this partnership.
Future Developments
As CEO of the U.S. subsidiary, Mr. Brett Mock will primarily oversee the following areas:
* Strengthening investment sourcing and execution systems in the U.S.
* Building relationships with venture and growth companies.
* Promoting strategic partnerships.
This structure will further strengthen HiJoJo's function as a cross-border investment platform connecting Japanese investors with global private companies.
Representative Comment
Comment from Spiridon Menzas, Co-CEO of HiJoJo Partners:
"We are delighted to welcome Brett. His extensive experience and network will significantly accelerate our U.S. expansion and further broaden access to high-quality investment opportunities. We aim to continue growing as a platform providing global private market access."
Overview of HiJoJo
HiJoJo was established in 2017 by Spiridon Menzas as an independent asset management company in Japan. HiJoJo is one of the largest VCs in Japan investing in U.S. unicorn companies, and has sold funds investing in middle and late-stage companies, totaling over 50 billion yen (as of February 5, 2026), to Japanese investors through both face-to-face and online channels since its establishment. Our shareholders include major Japanese financial institution groups such as Credit Saison, Mizuho Securities, SBI Group, Finatext Holdings, Mitsubishi UFJ Innovation Partners, Okasan Securities Group, Japan Investment Adviser, Monex Group, Pegasus Tech Ventures, i-nest capital, and SMBC Venture Capital.
We will continue to meet the diverse needs of investors by providing global private market investment opportunities.
Please refer to the following for details:
https://www.hijojo-partners.com
Trade Name: HiJoJo Partners Inc.
Registration Number: Kanto Local Finance Bureau (Kinsho) No. 3065
Registered Business: Type II Financial Instruments Business, Investment Management Business, Investment Advisory and Agency Business
Member Associations: The Japan Securities Dealers Association, The Investment Trusts Association, Japan (General Incorporated Association)
Background and Purpose
HiJoJo established its U.S. base in March 2026, reinforcing its system for providing global private market investment opportunities. In particular, investment opportunities in middle and late-stage companies, including unicorns, continue to expand primarily in the United States, making the strengthening of local deal sourcing capabilities a crucial management challenge.
By welcoming Mr. Brett Mock, who possesses extensive experience and a robust network in the U.S. capital and private markets, as CEO, we aim to further enhance collaboration with the local investment ecosystem and improve our capabilities in discovering and structuring promising investment opportunities.
About Mr. Brett Mock
Mr. Brett Mock has over 30 years of experience in the capital markets and private investment sectors, having served as Chairman of Nasdaq Private Market (NPM). He has been deeply involved in the development of unlisted stock trading and secondary markets in the United States.
HiJoJo has previously built a relationship with Nasdaq Private Market through a capital and business alliance, and Mr. Mock's participation is positioned to further deepen this partnership.
Future Developments
As CEO of the U.S. subsidiary, Mr. Brett Mock will primarily oversee the following areas:
* Strengthening investment sourcing and execution systems in the U.S.
* Building relationships with venture and growth companies.
* Promoting strategic partnerships.
This structure will further strengthen HiJoJo's function as a cross-border investment platform connecting Japanese investors with global private companies.
Representative Comment
Comment from Spiridon Menzas, Co-CEO of HiJoJo Partners:
"We are delighted to welcome Brett. His extensive experience and network will significantly accelerate our U.S. expansion and further broaden access to high-quality investment opportunities. We aim to continue growing as a platform providing global private market access."
Overview of HiJoJo
HiJoJo was established in 2017 by Spiridon Menzas as an independent asset management company in Japan. HiJoJo is one of the largest VCs in Japan investing in U.S. unicorn companies, and has sold funds investing in middle and late-stage companies, totaling over 50 billion yen (as of February 5, 2026), to Japanese investors through both face-to-face and online channels since its establishment. Our shareholders include major Japanese financial institution groups such as Credit Saison, Mizuho Securities, SBI Group, Finatext Holdings, Mitsubishi UFJ Innovation Partners, Okasan Securities Group, Japan Investment Adviser, Monex Group, Pegasus Tech Ventures, i-nest capital, and SMBC Venture Capital.
We will continue to meet the diverse needs of investors by providing global private market investment opportunities.
Please refer to the following for details:
https://www.hijojo-partners.com
Trade Name: HiJoJo Partners Inc.
Registration Number: Kanto Local Finance Bureau (Kinsho) No. 3065
Registered Business: Type II Financial Instruments Business, Investment Management Business, Investment Advisory and Agency Business
Member Associations: The Japan Securities Dealers Association, The Investment Trusts Association, Japan (General Incorporated Association)