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Stonefield Capital
Stonefield Capital is a multi-family office based in Palo Alto, co-founded by Eric Becker and John M. O'Malley in 1996 with wealth from Yahoo.
Stonefield Capital
Stonefield Capital traces its founding to 1996, when former Yahoo employees Eric Becker and John M. O'Malley pooled proceeds from stock option sales to create a dedicated investment vehicle (per The Wall Street Journal, 2015). The firm structured itself as a multi-family office, serving a cluster of roughly 20 families rather than a single dynasty. Stonefield deploys capital across a multi-asset strategy that includes venture capital, growth equity, private credit, and real estate. The firm co-invests alongside venture and growth managers such as Andreessen Horowitz and Sequoia Capital in enterprise software and fintech. In private credit, it has arranged direct lending facilities for mid-market companies (per Bloomberg, 2019). Geographically, it focuses on North America with occasional European exposure. The firm employs a lean professional team of about 15 people, per public estimates. It maintains an office in Palo Alto and an additional office in New York. Stonefield also runs a philanthropic foundation, the Stonefield Foundation, which is disclosed separately in public filings. Stonefield's structural differentiator is its multi-family model built on a single founding cohort — rare among Yahoo-alumni shops. The firm does not solicit new families publicly. It operates with a governance structure that gives equal voting weight to all member families, which limits mandate creep and preserves focus on direct co-investment alongside top-tier venture funds.
General information
Firm type
Multi Family Office
Year founded
1996
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Palo Alto
Corporate office
Palo Alto, CA, United States
Additional offices
New York, NY, United States
Principals
Eric Becker
Co-Founder and Managing Director
John M. O'Malley
Co-Founder and Managing Director
Sector focus
Frequently asked questions
Who runs investment decisions at Stonefield Capital?
Eric Becker and John M. O'Malley serve as co-founders and managing directors, leading investment decisions at the firm (public record). The firm maintains a small internal team of about 15 professionals who source and vet co-investments across private asset classes.
How does Stonefield Capital source proprietary deal flow?
Stonefield relies on its network of relationships with venture capital and growth equity partnerships — it is a known co-investor alongside firms like Andreessen Horowitz and Sequoia Capital (per The Wall Street Journal, 2015). The firm does not maintain a proprietary sourcing operation but receives pre-empted deal access through those GP relationships.
Is Stonefield Capital structured as a single family office or does it operate more like a venture firm?
Stonefield Capital is structured as a multi-family office for about 20 families. It does not raise capital from outside limited partners. The firm's investment team allocates capital directly into co-investments, venture funds, credit facilities, and real estate on behalf of the member families.
What investment stages does Stonefield Capital typically target?
Stonefield targets venture, growth equity, and private credit — ranging from Series A rounds to growth-stage direct investments. The firm has also arranged private credit facilities for mid-market companies. Its real estate activity includes direct property acquisitions (per Bloomberg, 2019).
Which sectors does Stonefield Capital explicitly avoid?
Stonefield Capital publicly emphasizes enterprise software, fintech, digital health, and cybersecurity. It does not appear to invest in public equities, natural resources, or early-stage venture capital outside of identified co-investment opportunities alongside established GPs (per public record).
Does Stonefield Capital maintain philanthropic structures?
Yes. The Stonefield Foundation is the firm's philanthropic arm, disclosed separately in public filings. It operates under a separate governance structure from the investment office and is funded by contributions from member families.
Where does the underlying wealth come from?
The wealth originates from Yahoo stock option proceeds earned by co-founders Eric Becker and John M. O'Malley during their tenure at Yahoo in the 1990s (per The Wall Street Journal, 2015). The firm is not backed by a single established dynasty but by a cohort of about 20 families.
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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