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Prime Participations
Founded in 2006 and headquartered in Mountain Lakes, New Jersey, Prime Participations emerged from the Dara Capital ecosystem built by Swiss financier Anton...
Prime Participations
Founded in 2006 and headquartered in Mountain Lakes, New Jersey, Prime Participations emerged from the Dara Capital ecosystem built by Swiss financier Anton Knecht. The firm functions as the US-based alternative investment engine for a discreet network of European family capital, most notably having managed the alternative portfolio for IHAG Holding, the Zurich-based investment company of the Bührle family dynasty. Karolann Rubin assumed the CEO role, steering day-to-day operations from the New York metro area while Dara Capital maintains its Swiss presence on Zurich's Rämistrasse. The firm pursues a multi-strategy mandate spanning buyouts, early-stage venture, and secondary transactions across North America and Europe. Prime Participations does not disclose a public portfolio, but its strategy documents point to a generalist approach that layers direct company stakes with LP commitments to external funds and the opportunistic purchase of seasoned fund interests on the secondary market. The firm's Swiss affiliate, Dara Capital, is a regulated member of the Swiss Association of Asset Managers and operates from an address c/o the exclusive Club zum Rennweg, signaling deep ties to Zurich's private banking community. The firm's operational footprint includes offices in Mountain Lakes, Midtown Manhattan, Miami's Brickell financial district, and Zurich. Dara Capital further extends the group's reach through a contributing membership in the Family Office University Network at Stanford, linking it to US-based academic and peer-family-office circles. The group also holds physical gold, precious metals, and Swiss cash notes as part of a broader wealth preservation strategy. In 2021, the firm lost board member Peter Ruof, a long-standing governance figure in the Dara network. Prime Participations occupies a rare structural position: a US-domiciled investment company that functions as the alternative-asset arm of a multi-generational Swiss private bank network. This architecture lets the firm source deal flow from both European family offices and US fund managers while maintaining the regulatory and cultural separation that Swiss wealth holders historically demand. Its silence — no public website, no marketing presence — is itself a differentiator in a market saturated with self-promoting multi-family offices.
General information
Firm type
Multi Family Office
Year founded
2006
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Mountain Lakes
Corporate office
150 Boulevard, Mountain Lakes, NJ, United States
Additional offices
110 East 59th Street, 33rd Fl, New York, NY 10022, United States · Rämistrasse 3, CH-8001 Zurich, Switzerland · 1395 Brickell Ave, Office 939, Miami, FL 33131, United States
Principals
Karolann Rubin
CEO
Anton Knecht
Founder of Dara Capital, former CIO
Sector focus
Frequently asked questions
Who runs investment decisions at Prime Participations?
Day-to-day operations are led by CEO Karolann Rubin, who runs the firm from New Jersey. The broader investment architecture traces back to Anton Knecht, founder of the affiliated Swiss entity Dara Capital, who formerly served as Prime Participations' CIO. The firm's governance historically included board member Peter Ruof, who passed away in 2021. Investment committee details are not publicly disclosed by the firm.
How is Prime Participations related to Dara Capital and IHAG Holding?
Prime Participations is the US-domiciled alternative investment affiliate of Dara Capital, a Swiss wealth management firm. The firm previously managed the alternative asset portfolio for IHAG Holding, the Zurich-based investment company that stewards the Bührle family fortune — a Swiss industrial dynasty whose wealth originated from the Oerlikon-Bührle arms and engineering conglomerate. Dara Capital US operates a Miami office, and the Zurich parent sits at Rämistrasse 3 c/o the private Club zum Rennweg.
What investment strategies does Prime Participations pursue?
The firm operates across three primary strategies: direct buyouts of established companies, early-stage venture investments, and secondary market purchases of existing private fund interests. This blend allows the firm to construct portfolios that mix control-oriented private equity with exposure to venture-stage innovation and discounted secondary LP stakes. Geographic focus spans North America and Europe. The firm does not publicly disclose sector exclusions or a specific industry concentration.
Where does the underlying wealth come from?
The firm's capital base is tied principally to European family wealth, most visibly the Bührle family of Switzerland through the IHAG Holding relationship. The Bührle fortune originated from the Oerlikon-Bührle industrial group, a mid-20th century Zurich-based arms manufacturer and engineering company. Prime Participations does not publicly disclose its full client roster or other family relationships beyond the IHAG mandate.
Does Prime Participations co-invest alongside external managers?
The firm's strategy includes both direct investments and fund commitments, which suggests a willingness to co-invest alongside external general partners on a deal-by-deal basis. However, no specific co-investment partners or club-deal structures are publicly named. The group's Swiss roots and club memberships — including Club zum Rennweg and the Family Office University Network at Stanford — indicate a preference for curated, network-driven deal sourcing rather than broad auction processes.
Is Prime Participations structured as a single family office?
No. Despite its discreet posture, Prime Participations operates as a multi-family investment company. The firm manages capital for external families, most notably IHAG Holding, alongside any proprietary Dara Capital capital. Its corporate subtype is a corporate investor with an affiliated Swiss wealth manager, distinguishing it from a pure single-family office. The US entity functions as an investment manager, not a family office service provider.
What is the firm's posture on physical assets like gold?
The Dara Capital network holds physical gold, precious metals, and Swiss cash notes as part of its asset base. This suggests a meaningful allocation to hard assets as a wealth preservation strategy — a posture consistent with the multi-generational Swiss family capital culture the firm serves. The specific custodial arrangements and percentage allocation are not publicly disclosed.
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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