Old Mountain
Single family office in Boston, United States; estimated AUM $1B; focus on fintech, media and climate.
USEFUL FOR Co-investors
Family & background
- HEADQUARTERS
- Boston, United States
- AUM
- ~$1B (2026, press estimate)
Investment approach
- SECTORS
- FintechMedia & EntertainmentClimate & EnergyIndustrial & ManufacturingHealthTechMobility & Logistics
- ROUTES
- Companies (own capital)
Overview
This single family office has its headquarters in Boston, United States. Its assets under management are estimated at $1B (2026); its sector focus covers fintech, media, climate and industrial. It invests directly in companies; 4 people are named on its team.
People
- Jane MendilloSenior Investment Advisor and Trustee · source
- Marshall Field VFounder · source
- John PirovanoPresident · source
- Daniel MosleyPresident and Director of Old Mountain Private Trust Company · source
Frequently asked questions
Old Mountain is a single family office based in Boston, the United States.
Old Mountain invests its own capital into companies.
Old Mountain invests in Fintech, Media & Entertainment, Climate & Energy, Industrial & Manufacturing, HealthTech and Mobility & Logistics.
Key people at Old Mountain include Marshall Field V (Founder), John Pirovano (President), Jane Mendillo (Senior Investment Advisor and Trustee) and Daniel Mosley (President and Director of Old Mountain Private Trust Company).