Founder • Investor • Author • Philanthropist
Justin Peter
Gardiner Lowe
American-Swiss investor with thirty years in global capital markets. Founder of Gardiner Investments and author of the novel Since Ninety-One.
Biography
Thirty years of building,
investing & leading
Justin Peter Gardiner Lowe is an American-Swiss investor and the founder of Gardiner Investments, a family office active in technology, financial technology and natural resources. Three decades in global capital markets and investment banking have given him deep experience in origination and capital solutions, underwriting and distribution, special situations and global asset management.
He began investing in hedge funds in 1999 and co-founded Reliance Management, a leading fund of hedge funds manager that grew beyond $2 billion in assets under management by 2008. In 2010 Reliance acquired the New York-based Pan Funds to form Pan Reliance Capital Advisors, which won Sustained Excellence in Funds of Hedge Funds Management in 2014 and Fund of Hedge Funds Adviser of the Year in 2013 and 2017.
Following a successful exit, he founded Gardiner Investments and serves as Chairman of the Advisory Board of PSG Capital. His first novel, Since Ninety-One, follows four lives converging on a negotiating room in Geneva and is available on Amazon in October 2026.
American-Swiss
Miami, Florida
English, French, Spanish, German
Columbia MBA • LSE B.Sc. (Econ.)
Career
A record of building
& scaling institutions
2018 – Present
Gardiner Investments — Founder
Founded the family office through which he invests across technology, financial technology and natural resources, with a particular interest in the metals underpinning the energy transition. Chairman of the Advisory Board of PSG Capital and of its Abu Dhabi financial technology subsidiary, Peregrine.
1999 – 2018
Reliance Management / Pan Reliance Capital Advisors — Co-Founder
Co-founded one of the leading fund of hedge funds managers, growing assets under management beyond $2 billion by 2008 and acquiring the New York-based Pan Funds in 2010 to form Pan Reliance Capital Advisors. Winner of Sustained Excellence in Funds of Hedge Funds Management (2014) and Fund of Hedge Funds Adviser of the Year (2013 and 2017). Exited the business.
1999 – 2001
Software Venture — Founder
Founded a software company that grew out of his work at Broadview International, now part of Jefferies, a venture and investment banking firm focused on the information technology industry. Exited in 2001.
1993 – 1999
Bain & Company — Consultant
Began his career as a management consultant with Bain & Company, serving in the Geneva, Paris, London and Munich offices across a range of strategic engagements.
Education & Service
Credentials
Columbia Business School
Columbia University, New York
London School of Economics
International Relations
Swiss Armed Forces
Completed full service
Boards & Chairmanships
Where he serves
- Chairman of the Advisory BoardPSG Capital
And its Abu Dhabi financial technology subsidiary, Peregrine.
- FounderGardiner Investments
Family office: technology, fintech and natural resources.
- Board MemberSurfrider Foundation, Miami Chapter
Ocean, wave and beach conservation.
- Senior AdvisorFit For Life Foundation
Healthy ageing and independent mobility.
Heritage
The Gardiner Legacy
Justin carries forward a transatlantic lineage spanning finance, diplomacy and public service. That inheritance shapes the values he brings to his own work: stewardship, integrity and a preference for institutions built to last.
He is the great-grandson of Robert Hallowell Gardiner IV, who founded the Fiduciary Trust Company in Boston in 1928, a landmark institution in American wealth management. Through the Gardiner line he inherits a tradition of fiduciary responsibility and long-horizon thinking that still informs his approach to investment.
He is also the great-grandson of Adrien Lachenal, elected President of the Swiss Confederation in 1896, and the grandson of Marc Peter, Swiss envoy to the United States from 1919 to 1939. The dual American-Swiss heritage is central to his identity and to his perspective on business and philanthropy.
Robert Hallowell Gardiner IV
Founder, Fiduciary Trust Co., Boston (1928)
Adrien Lachenal
President of the Swiss Confederation (1896)
Marc Peter
Swiss envoy to the United States (1919–1939)
Elsewhere on this site
Continue
Gardiner Investments
The family office: how capital is deployed across technology, financial technology, natural resources and special situations.
Investment focus →Since Ninety-One
A first novel: four lives, four countries, one negotiating room in Geneva. On Amazon, October 2026.
About the novel →Philanthropy
Ocean conservation with Surfrider Miami and healthy ageing with the Fit For Life Foundation.
Giving back →Investment Commentary
Essays on critical minerals, uranium and the places where capital and industrial policy fail to meet.
Read the commentary →Get in touch
Let's connect
Whether you are exploring a co-investment, seeking advisory guidance, or share a commitment to the causes he supports, he would welcome the conversation.
jl@gardinerinvest.com