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Sorehsa AG
Alexander Sorehsa's Swiss single-family office executes a concentrated early-stage tech mandate from Basel and the Bay Area, backing seed and Series A...
Sorehsa AG
Sorehsa AG was established as the family office for Alexander Sorehsa, with its operational footprint deliberately split between Basel, Switzerland, and a cluster of offices in the San Francisco Bay Area (San Francisco, Sausalito, and Portola Valley). This dual-continent structure reflects a mandate that bridges European family capital with Silicon Valley's early-stage technology ecosystem. The office's geographic positioning allows it to operate both as a Swiss wealth-preservation vehicle and a West Coast venture investor. Sorehsa's investment strategy concentrates on direct seed and Series A venture capital, with a posture closer to that of a tech-focused family fund than a diversified multi-asset office. Its known activity centers on enterprise software, applied artificial intelligence and machine learning, digital health, and fintech. The office has participated in early rounds alongside established Bay Area venture firms, though specific portfolio company names remain largely private. The geographic scope is primarily North America, with the Bay Area as the hub, while the Basel presence maintains a connection to European co-investment and limited partner networks. The team operates from its dual-country bases, with the principal personally involved in investment decisions—a common architecture for single-family offices running a concentrated direct-investment book. No publicly reported employee count or total deployment figures exist. Like many European single-family offices deploying into US technology, Sorehsa likely operates leanly, relying on the principal's network and a small investment team split across the Swiss and California offices. Sorehsa's structure as a Swiss AG with a substantive California presence is its defining structural feature. Few European single-family offices maintain multiple Bay Area offices, a choice that signals a permanent local commitment rather than episodic LP-style allocations. The architecture avoids a fund-of-funds layer, instead placing capital directly into company rounds—a posture that aligns more closely with how active tech family offices like Thiel Capital or Makan's ICONIQ operate, albeit at a smaller, undisclosed scale.
General information
Firm type
Single Family Office
Year founded
—
AUM
Undisclosed
Location
Region
Europe
Country
Switzerland
City
Basel
Corporate office
Basel, Switzerland
Additional offices
San Francisco, CA · Sausalito, CA · Portola Valley, CA
Principals
Alexander Sorehsa
Principal
Sector focus
Frequently asked questions
Who runs investment decisions at Sorehsa AG?
Alexander Sorehsa is the principal and ultimate decision-maker for Sorehsa AG's investments. The office is structured as a single-family vehicle, meaning investment authority is concentrated rather than delegated to external managers or a sprawling committee. Day-to-day deal sourcing and analysis are likely handled by a lean team across the Basel and Bay Area offices, but final allocation decisions rest with the principal.
Is Sorehsa AG a single-family office or a multi-family office?
Sorehsa AG is a single-family office, managing capital exclusively for Alexander Sorehsa and his family. It does not accept outside capital or operate as a multi-family platform. The Zurich and San Francisco offices serve only the principal's balance sheet and direct investment program.
How does Sorehsa AG source its early-stage deals?
The office's presence in Sausalito and Portola Valley—communities dense with venture capitalists and startup founders—suggests a network-driven sourcing model. Principal-led family offices of this type typically access deal flow through direct relationships with founders, co-investor syndicates, and the limited partner networks of Bay Area venture firms, rather than through intermediaries or investment banks.
What investment stages does Sorehsa AG target?
Sorehsa focuses on seed and Series A rounds, the earliest institutional stages of company formation. The office does not appear to run a later-stage growth equity or buyout strategy. Its early-stage concentration is consistent with how many single-family offices deploy when they have a principal with direct operating or technology domain expertise and a long-duration capital base.
Which sectors does Sorehsa AG explicitly avoid?
Based on its observable focus on enterprise software, applied AI, digital health, and fintech, Sorehsa does not appear active in capital-intensive sectors like hard infrastructure, energy, or manufacturing. There is no public record of real estate, natural resources, or public-markets exposure within the family office's direct investment program, though private wealth structures of this type may hold traditional asset allocations separately.
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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