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3SE
3SE was founded by a team of investment professionals who structured the firm as a multi-family office rather than a single-family vehicle.
3SE
3SE was founded by a team of investment professionals who structured the firm as a multi-family office rather than a single-family vehicle. The firm serves multiple wealthy families, providing centralized investment and administrative services. Its geographic footprint spans seven offices: New York, Sydney, Norwood, Singapore, Sarasota, Pasadena, and Jakarta. The firm allocates capital across public equity, private equity, real estate, and direct co-investments. 3SE targets both venture and growth-stage opportunities alongside more mature asset classes such as infrastructure and real estate. Known portfolio positions include investments in healthcare services, technology, and energy transition ventures, alongside fund commitments to external managers (per firm communications). The geographic focus covers North America, Asia-Pacific, and select European markets. 3SE does not publicly disclose AUM, deployment volume, or number of professionals. The firm maintains a lean team structure optimized for family-office services rather than asset management marketing. No recent operational events — fund closures, key hires, or notable exits — have been publicly reported in the last 24 months. A structural differentiator is 3SE's multi-family office model integrated with a physical global office network — it functions as a single family office for multiple families, sharing infrastructure and deal flow across jurisdictions. This architecture allows smaller family offices to access institutional-quality investment opportunities they could not execute independently.
General information
Firm type
Multi Family Office
Year founded
—
AUM
Undisclosed
Location
Region
North America
Country
United States
City
New York
Corporate office
New York, NY, United States
Additional offices
Sydney, Australia · Norwood, MA, United States · Singapore · Sarasota, FL, United States · Pasadena, CA, United States · Jakarta, Indonesia
Frequently asked questions
Who oversees investments at 3SE?
3SE does not publicly name its investment leadership. The firm operates as a multi-family office with a professional team structure, but no CIO or managing partner names are disclosed on its website or in public records.
How does 3SE source proprietary deal flow?
3SE sources investments through its global office network spanning seven cities across North America, Asia-Pacific, and Southeast Asia. The firm participates in co-investments alongside external GPs and direct deals sourced from its family-office clients' networks (per firm communications).
Is 3SE a single family office or a multi-family office?
3SE is a multi-family office. It serves multiple wealthy families rather than a single founding family, providing pooled investment management, administrative services, and direct co-investment opportunities across its network.
Does 3SE make fund commitments or only direct deals?
3SE allocates capital both through fund commitments to external managers and through direct co-investments. Its strategy includes private equity, venture capital, real estate, and public market allocations, executed across both fund and direct deal structures.
Which investment stages does 3SE target?
3SE targets venture, growth equity, and mature-stage opportunities across private equity, real estate, and infrastructure. The firm also invests in public markets, providing flexibility across the lifecycle of portfolio companies.
What sectors does 3SE explicitly avoid?
3SE does not publicly disclose any excluded sectors. The firm's known portfolio spans healthcare services, technology, and energy transition, but no sector blacklist has been published.
Where does the underlying wealth managed by 3SE come from?
3SE does not disclose the wealth origins of its family clients. As a multi-family office serving multiple families, the underlying capital sources are presumed to include entrepreneurial wealth, inheritance, and liquidity events across various industries.
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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