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John Rompon
Private Investor at Marjo Investments LLC
John Rompon is a prominent private equity investor and the Managing Partner at Marjo Investments LLC, a firm focused on the governance and management of private investments in collaboration with family offices globally. He has held this position since January 2017 and is based in the Greater Chicago Area.13
Professional Background
Rompon has over 25 years of experience in private company and family office investing. His career encompasses various roles, including:
- Chief Executive Officer and Board Member of multiple companies.
- Adjunct Professor at Indiana University Maurer School of Law, where he teaches a Family Office Program.13
- Leadership positions at firms such as McNally Capital LLC, where he was a co-founder and Managing Partner prior to Marjo Investments.34
Investment Focus
At Marjo Investments, Rompon specializes in identifying and structuring investments with an aggregate enterprise value exceeding $1.2 billion. His expertise includes:
- Sourcing and structuring investment opportunities.
- Improving operations and developing strategic initiatives for portfolio companies.13
Education and Licenses
Rompon holds a J.D. from Indiana University Maurer School of Law and a B.A. in Economics and History from Northwestern University. He is licensed to practice law in multiple states, including Illinois, Washington, and California, and holds several FINRA certifications.13
Board Memberships
In addition to his role at Marjo Investments, Rompon serves on the boards of several companies, including:
- CoreCentric Solutions
- Riverain Technologies
- AIA Corporation He also contributes to philanthropic efforts as a Trustee and Investment Committee member for The Newberry Library.234
Rompon's extensive background in private equity, corporate governance, and family office operations positions him as a significant figure in the investment community.


