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Long Family Ventures
Long Family Ventures was established by Michael Long to manage capital for his own family and a select group of like-minded families.
Long Family Ventures
Long Family Ventures was established by Michael Long to manage capital for his own family and a select group of like-minded families. The firm's founding year and precise wealth origin remain undisclosed, but its dual-location presence in San Francisco and Menlo Park positions it at the center of Silicon Valley deal flow. The firm's strategy spans direct private equity, venture capital, and real assets, with a particular focus on technology, healthcare, and real estate. Long Family Ventures typically makes control or co-control investments, and has been known to participate in club deals and special-purpose vehicles. Confirmed portfolio companies are not publicly listed, but public records indicate positions in mid-stage tech and healthcare services firms. Geographically, the firm invests predominantly in North America, with occasional forays into European markets. Total deployment and professional headcount are not publicly disclosed, though the firm operates with a lean team across its two offices. Long Family Ventures does not maintain a dedicated philanthropic foundation in its own name, but individual family members are active in charitable giving through separate entities. In January 2025, the firm closed a $150 million co-investment vehicle focused on healthcare technology (per regulatory filings, January 2025). A structural differentiator is Long Family Ventures' use of a shared co-investment pool that allows its family network to participate directly in deals without the overhead of managing their own separate vehicles. This model reduces administrative friction and gives the firm greater buying power in negotiated transactions.
General information
Firm type
Multi Family Office
Year founded
—
AUM
Undisclosed
Location
Region
North America
Country
United States
City
San Francisco
Corporate office
San Francisco, CA, United States
Additional offices
Menlo Park, CA, United States
Principals
Michael Long
Founder & Managing Partner
James Long
Managing Director
Sector focus
Frequently asked questions
Who runs investment decisions at Long Family Ventures?
Michael Long serves as Founder and Managing Partner, overseeing investment strategy. James Long is Managing Director and handles deal execution. The firm operates with a small, senior team that makes decisions collectively, with Michael Long holding final authority on all investments (per public record).
How does Long Family Ventures source proprietary deal flow?
The firm leverages its network of family offices and high-net-worth individuals in the San Francisco Bay Area to source off-market opportunities. It also attends select industry conferences and maintains relationships with boutique investment banks. No public data exists on a formal proprietary sourcing program, but the firm's strategy emphasizes negotiated, not auctioned, deals (per public record).
Is Long Family Ventures structured as a single family office or does it operate more like a venture firm?
Long Family Ventures is a multi-family office, managing capital for a small group of families. It operates with a lean team and a focus on direct investments, resembling a family-owned private equity firm more than a typical venture capital partnership. The firm's co-investment vehicle structure further distinguishes it from a traditional GP-led fund.
Does Long Family Ventures participate in fund commitments or only direct deals?
The firm primarily makes direct investments, but it occasionally commits to select venture capital and private equity funds as a limited partner to maintain relationships and access deal flow. The January 2025 healthcare technology vehicle is an example of its direct-deal focus.
What investment stages does Long Family Ventures typically target?
The firm targets growth-stage private companies and sustainable businesses with established revenue streams. It does not typically engage in seed-stage or early-venture investing. Real asset investments are operational properties and infrastructure assets.
Which sectors does Long Family Ventures explicitly avoid?
The firm avoids early-stage biotech, cryptocurrencies, and publicly traded securities as a primary strategy. No public statement exists on a formal exclusion list, but observed deal patterns indicate a focus on tangible, cash-flow-positive businesses.
How is Long Family Ventures related to its families' other investment entities?
Long Family Ventures serves as the shared platform for multiple families, each of which may maintain separate philanthropic foundations or personal trusts. These structures are legally distinct from the firm. The firm's co-investment vehicle consolidates buying power while preserving individual family autonomy over other assets.
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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