For over 40 years, we’ve invested in people, partnerships, and opportunity
A family office built on trust
Penrose is a private single-family office shaped by generations of leadership, enduring partnerships, and a deep commitment to the people and communities connected to its work. Inspired by Billy Rosenthal’s vision and carried forward by a close-knit family and leadership team united by shared purpose, it invests with curiosity, judgment, and care.
PRINCIPLES THAT GUIDE US
Family Stewardship
We value kindness and guidance just as much as trust. Our approach is grounded in thoughtful communication and a commitment to investing with integrity through a long-term lens.
Relationship-Driven
True growth begins with getting to know you. We prioritize relationships, recognizing that our greatest investments are in the people behind every opportunity.
Commitment Beyond Capital
From network access to strategic guidance, at Penrose, our work extends far beyond monetary support. We spend our days creating connections and sharing insights that have shaped us too.
Built Across Generations
What started with Billy's entrepreneurial spirit has become the multigenerational family office Penrose is today, carried forward by a deeply connected team that doesn't just work together, but genuinely feels like family.
Rooted in experience
Decades spent building businesses and leading through change have shaped the perspective behind Penrose. From food manufacturing and protein production to investing and philanthropy, the common thread has remained consistent: the power of relationships, thoughtful stewardship, and long-term thinking.