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Solon Mack Capital
Solon Mack Capital was established in 2003 by William Mack, Richard Mack and Stephen Mack. The family's wealth originated in commercial real estate, first...
Solon Mack Capital
Solon Mack Capital was established in 2003 by William Mack, Richard Mack and Stephen Mack. The family's wealth originated in commercial real estate, first through Mack-Cali Realty and later through the ongoing operations of Mack Real Estate Group. The office deploys capital through direct co-investments, SPVs, hedge funds, private equity and real estate. Confirmed holdings include a position in Digital Currency Group, commodity contracts and tax liens. Geographic reach remains limited to North America. Portfolio companies and assets are concentrated in real estate projects such as 335 Carroll Street in Brooklyn and the Arcade Building Retail Condominium in Seattle. No headcount figure is published. The firm lists no additional offices beyond Greenwich. Philanthropic vehicles include the Richard and Christine Mack Family Foundation, the David and Sondra Mack Family Foundation and the William and Phyllis Mack Family Foundation. William Mack previously chaired the Wharton Board of Overseers and the Guggenheim Museum Board of Trustees. Investment decisions sit with the same three Mack principals who control Mack Real Estate Group. This overlap creates a direct link between operating real-estate activity and the family's investment book, rather than a separate professional staff managing an arm's-length portfolio.
General information
Firm type
Single Family Office
Year founded
2003
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Greenwich
Corporate office
Greenwich, CT, United States
Principals
William Mack
Co-founder
Richard Mack
Co-founder and CEO of Mack Real Estate Group
Stephen Mack
Co-founder and principal of Mack Real Estate Group
Mark Lodish
Partner
Roberto Mignone
Managing Partner
Sector focus
Frequently asked questions
Who runs investment decisions at Solon Mack Capital?
Richard Mack, William Mack and Stephen Mack serve as the three co-founders and retain final authority over allocations. Mark Lodish and Roberto Mignone act as partners on day-to-day matters.
How is Solon Mack Capital related to Mack Real Estate Group?
Solon Mack Capital functions as the family office for the principals of Mack Real Estate Group. The two entities share the same controlling family members and coordinate on real-estate investments.
Does Solon Mack Capital participate in fund commitments or only direct deals?
The office uses both approaches. It holds hedge fund and private equity fund positions while also executing direct co-investments and SPVs in real estate and venture assets.
What investment stages does Solon Mack Capital typically target?
The firm targets growth equity and venture alongside established real estate assets. No early-stage seed focus is disclosed.
Where does the underlying wealth come from?
The Mack family's capital stems from multi-generation commercial real estate development, principally Mack-Cali Realty and the ongoing Mack Real Estate Group platform.
Does Solon Mack Capital maintain philanthropic structures?
Three family foundations are disclosed: the Richard and Christine Mack Family Foundation, the David and Sondra Mack Family Foundation and the William and Phyllis Mack Family Foundation.
What is Solon Mack Capital's known posture on co-investments alongside external GPs?
The office executes direct co-investments and SPVs, indicating willingness to participate alongside or independent of external managers in real estate and venture opportunities.
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.
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