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Mack & Co. Partners, LP

mackco.com Direct investor

Mack & Co. Partners, LP is an SEC-registered investment adviser that provides advisory and direct investment solutions for family offices and institutions. It focuses on late-stage venture and growth equity investments, and also offers investment management and capital advisory services.

Mack & Co. Partners, LP is an investor headquartered in Dallas, United States, founded in 2010. It invests directly in companies, from Series C and later to growth, in late-stage venture, growth equity, private equity and real estate.

“We source and invest in unique hard to access curated late stage venture and growth equity investment opportunities through special purpose investment vehicles.”

Mack & Co. Partners, LP, own website
Layer
Direct investor
Type
Other
Stage
Series C+Growth
Headquarters
Dallas, United States
Invests in
global
Sectors
late-stage venture, growth equity, private equity, real estate, ed tech, AI, space technology, food delivery
Founded
2010

Team, as Mack & Co. Partners, LP publishes it

  • Roszell Mack III Chief Executive Officer and Managing Member
  • Preston DeLong Vice President
  • Charles Hornat Chief Technology Officer and Chief Information Security Officer
  • Eleanor Jeffus Special Projects and Administrative Associate
  • Maximiliana Windisch-Graetz Financial Analyst
  • Richard Zack CEO and Managing Member, M&Co. Securities LLC

Names and roles exactly as listed on mackco.com. Nothing else about these people is recorded.

Co-invests most often with

Derived from portfolio pages both investors publish themselves: each pair below lists at least one company in common. 25 co-investors found.

and 15 more — the graph.

Where this comes from

Every fact above was read from a page Mack & Co. Partners, LP publishes itself. Nothing is taken from third-party databases. Investment activity (deals, co-investors) is not yet recorded.

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Record 5375 · added 2026-09-03 · link last verified 2026-09-06 · confidence high

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