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Sphera Fund Management
Sphera Fund Management runs a dual-hub family office across New York and Tel Aviv, focused on direct venture investments in early-stage technology.
Sphera Fund Management
Sphera Fund Management is a single-family office with a multi-city presence spanning New York, Tel Aviv, Philadelphia, Cambridge, and Los Angeles. The office's founding principals and wealth origin are not publicly disclosed, but the operational footprint points to a technology-focused mandate shaped by deep ties to both the US and Israeli venture markets. The selection of Cambridge places the firm near MIT and Harvard; the Tel Aviv office connects it directly to Israel's cybersecurity and enterprise software ecosystem. The firm's strategy centers on direct venture capital investments with an emphasis on early-stage technology companies. Sphera sources deal flow through its distributed office model, with on-the-ground teams in key innovation hubs. Investment sectors appear to include enterprise software, cybersecurity, AI/ML, and digital health, consistent with the cross-border US-Israel technology corridor. Portfolio holdings and fund structures are not publicly itemized, and the firm does not disclose its total deployment or specific co-investment relationships. The office maintains a lean operational profile. No team-size figures are published, and Sphera does not appear to operate adjacent philanthropic vehicles, real-asset arms, or multi-family club structures under the same brand. The absence of public investment memos or fund raise announcements suggests the office invests proprietary capital without external limited partners. Recent activity is not verifiable through public filings or announcements. Sphera's structural distinction lies in its deliberate dual-hub architecture. Rather than managing a centralized portfolio from a single headquarters, the office embeds investment professionals in at least five cities without operating as a multi-billion-dollar institution. This distributed model serves as an in-house scouting network, providing the family with access to deal flow that typically flows to institutional venture firms. The lack of external LPs means the office faces no disclosure requirements, a posture that allows it to remain largely invisible despite covering some of the world's most competitive early-stage markets.
General information
Firm type
Single 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
Tel Aviv, Israel · Philadelphia, PA, United States · Cambridge, MA, United States · Los Angeles, CA, United States
Frequently asked questions
How does Sphera Fund Management source investment opportunities?
Sphera maintains offices in New York, Tel Aviv, Philadelphia, Cambridge, and Los Angeles, positioning investment professionals in proximity to major research universities and technology ecosystems on both US coasts and in Israel. This distributed model functions as an internal sourcing network, giving the family office direct access to early-stage deal flow that typically originates in these innovation corridors. The firm does not publicly detail its proprietary sourcing channels or relationships with accelerators and university tech-transfer offices.
Is Sphera a single-family office or does it manage outside capital?
Sphera Fund Management operates as a single-family office. There is no public record of the firm raising funds from external limited partners, issuing private placement memoranda, or registering as an investment adviser with the SEC. The office invests proprietary capital on behalf of a single family, though the identity of that family has not been disclosed in public filings.
What is Sphera's investment focus?
Sphera targets early-stage technology companies, with a geographic focus on the US and Israel. The office's presence in Cambridge suggests exposure to deep-tech and life sciences spinouts from MIT and Harvard, while the Tel Aviv office connects it to Israel's established strength in cybersecurity, enterprise software, and AI/ML. The firm does not publish a list of excluded sectors or specify a preferred check size, but its operational footprint points to a venture-focused mandate rather than buyout, real estate, or public-market strategies.
Where does the wealth backing Sphera Fund Management come from?
The underlying source of wealth for Sphera Fund Management has not been publicly disclosed. The firm's principals and founding family have not been identified in public records, and no wealth-origin narrative appears in regulatory filings or official communications. The office's operational profile—multi-city, technology-focused, direct venture—is consistent with wealth generated in the technology or financial services sectors, though this is speculative without primary confirmation.
Does Sphera co-invest alongside other family offices or venture funds?
Sphera does not publicly disclose its co-investment relationships. Dual-hub family offices with a presence in both the US and Israel often participate in syndicates alongside peer family offices and venture firms active in the same corridors, but no named co-investors have been identified for Sphera in public deal announcements. The firm's preference for remaining unlisted in cap tables and press releases makes its co-investment posture difficult to verify.
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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