The Feinstein Family Office
Frontier Investments
Entrepreneurial conviction. A long-term perspective.
Explore our investmentsIndependent thinking. Enduring partnerships.Discover more
Our story
A family office.
An entrepreneurial spirit.
We believe the most meaningful investments begin with a shared vision. The Feinstein Family Office brings a patient, independent perspective to backing ideas, businesses, and people shaping the future.
Get to know usOur investments
Investments since 2015
SpaceX
Aerospace
FFO Investments starting in 2017
Anduril
Defense
FFO Investments starting at $28B market cap
Groq
Semiconductors
FFO Investments starting at $2B market cap
Palantir
AI Software
FFO Investments starting pre-ipo at $3 pps
Cerebras Systems
Semiconductors
FFO Investments starting at $5b valuation
Apptronik
Robotics
FFO Investments starting at $1.8B valuation
Great ideas deserve more than capital.
They deserve conviction.
The Feinstein Family Office perspective
Meet Darin Feinstein 
Giving back
Success means more
when it’s shared.
Our commitment extends beyond investing. Through the Feinstein Griffin Foundation, we support educational opportunities and the people building a brighter future.
The Feinstein Griffin Foundation