Updated:
Rosemark Management
Rosemark Management, Inc. was established in 1992 to oversee the portfolio assembled by Arthur G. Cohen. Cohen developed landmark Manhattan projects including...
Rosemark Management
Rosemark Management, Inc. was established in 1992 to oversee the portfolio assembled by Arthur G. Cohen. Cohen developed landmark Manhattan projects including Olympic Tower and One Worldwide Plaza. The firm continues to hold and expand those positions through targeted acquisitions. The portfolio centers on real estate with confirmed holdings that include the Paramount Building at 1501 Broadway in New York, 375 S County Road in Palm Beach, 243 Worth Avenue in Palm Beach, and 340-350 Royal Palm Way in Palm Beach. Additional positions cover Olympic Tower at 641 Fifth Avenue and One Worldwide Plaza at 825 Eighth Avenue. The firm also maintains a digital asset portfolio and two art collections. Geographic reach spans New York and Florida. No public disclosure exists on team size or additional offices. The Arthur G. Cohen Foundation operates as the family's philanthropic vehicle. No operational events from the last twenty-four months appear in available records. The structure remains a direct single-family office without external fund vehicles or co-investor clubs. Ownership and acquisition decisions stay inside the family and its named partners.
General information
Firm type
Single Family Office
Year founded
1992
AUM
Undisclosed
Location
Region
North America
Country
United States
City
New York
Corporate office
New York, NY, United States
Principals
Remy Cohen
President
Charles Rosenberg
Managing Partner
Spencer Schlager
Partner
Sector focus
Frequently asked questions
Who runs investment decisions at Rosemark Management?
Remy Cohen serves as President. Charles Rosenberg acts as Managing Partner. Spencer Schlager participates as Partner in the CS Ventures joint venture.
Does Rosemark Management participate in fund commitments or only direct deals?
The firm executes direct acquisitions and ownership of real estate assets. No fund commitments are disclosed.
Where does the underlying wealth come from?
The portfolio originated from real estate development by Arthur G. Cohen, including Olympic Tower and One Worldwide Plaza.
Does Rosemark Management maintain philanthropic structures?
The Arthur G. Cohen Foundation serves as the family's separate philanthropic vehicle.
What asset classes does Rosemark Management hold?
Holdings center on commercial, residential, mixed-use, senior living and industrial real estate plus a digital asset portfolio and art collections.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
Need institutional-grade insight on family offices?
Altss delivers:
Prefer a guided tour?
We’ll walk you through: