Multi-Family Office

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Elsasser & Partner

Founded in 2002 by Bruno Elsasser, Elsasser & Partner operates as a multi-family office anchored in Zürich's fiduciary-services tradition.

Elsasser & Partner

Founded in 2002 by Bruno Elsasser, Elsasser & Partner operates as a multi-family office anchored in Zürich's fiduciary-services tradition. The firm grew out of a Swiss trust, tax, and asset-management practice, serving entrepreneurial families and their investment vehicles. Its client base includes Petróleos de Venezuela, S.A.'s Swiss entity, PDVSA AG, for which Elsasser & Partner provides corporate and fiduciary services — a relationship that signals the firm's institutional capacity and cross-border structuring capability. The firm deploys capital across a conservative multi-asset framework built for intergenerational wealth preservation. Its website emphasizes balance-sheet protection and long-term compounding over aggressive venture exposure. Portfolio construction integrates liquid and illiquid holdings, with real estate forming a visible allocation — Elsasser & Partner directly manages residential property through Bellis Immobilien AG and commercial property through 168 Immobilien GmbH, both domiciled at its Schanzeneggstrasse headquarters. The corporate-services arm, PDVSA AG, sits alongside these real-estate vehicles in the firm's Zürich structure. No fund-of-funds or club-deal vehicles are publicly disclosed. Elsasser & Partner operates from a single Zürich office. The governance triad of Bruno Elsasser as Managing Director, Jetmir Demiri as President of the Board, and Oliver Trunz as Deputy Managing Director concentrates decision-making in a tight circle of Swiss fiduciaries. Philanthropic structures include the ARKAT Stiftung and the Raymond Taverner-Stiftung, both domiciled in Switzerland and maintained as separate legal foundations. The firm is listed within professional networks as a verified multi-family-office profile, though it does not advertise membership in peer groups like Tiger 21 or R360. Elsasser & Partner's structural differentiator is its dual identity: a multi-family office built atop a corporate-fiduciary spine. Rather than competing on direct-investment volume or fund-commitment pacing, the firm's offering fuses asset management, estate planning, and corporate structuring — a configuration that allows it to serve both family capital and the Swiss subsidiaries of foreign state-owned enterprises under one roof. That hybrid mandate is unusual among Swiss multi-family offices, which typically separate fiduciary services from investment management.

General information

Firm type

Multi Family Office

Year founded

2002

AUM

Undisclosed

Location

Region

Europe

Country

Switzerland

City

Zürich

Corporate office

Schanzeneggstrasse 1, CH-8002 Zürich, Switzerland

Principals

Bruno Elsasser

Managing Director

Jetmir Demiri

President of the Board

Oliver Trunz

Deputy Managing Director

Sector focus

Real Estate

Frequently asked questions

Who runs investment decisions at Elsasser & Partner?

Managing Director Bruno Elsasser oversees the firm. He is the founder and lead principal behind Elsasser & Partner's integrated offering. Deputy Managing Director Oliver Trunz and Board President Jetmir Demiri complete the senior governance layer. The firm does not publish a distinct CIO or investment-committee roster, consistent with a fiduciary shop where principals directly manage client relationships and asset-allocation guidance.

Is Elsasser & Partner a pure multi-family office or does it also operate corporate- and trust-service lines?

It operates both. Elsasser & Partner provides multi-family-office services — portfolio construction, estate planning, and governance — alongside corporate and fiduciary services for entities such as PDVSA AG, the Swiss arm of Venezuela's state oil company. The firm also directly maintains Bellis Immobilien AG for residential property and 168 Immobilien GmbH for commercial property, giving it an operating-company layer beneath the advisory structure.

How is the firm's real-estate exposure structured for client families?

Real-estate holdings are routed through two separate Zürich-domiciled companies: Bellis Immobilien AG focuses on residential property, while 168 Immobilien GmbH holds commercial real estate. Both entities share the firm's Schanzeneggstrasse address. The degree to which client capital shares co-ownership in these vehicles is not publicly detailed, but the structure suggests direct-property access rather than third-party fund commitments.

What is the significance of the PDVSA relationship?

Petróleos de Venezuela, S.A.'s Swiss subsidiary, PDVSA AG, receives corporate and fiduciary services from Elsasser & Partner. Board President Jetmir Demiri also serves as a director of PDVSA AG. This mandate demonstrates Elsasser & Partner's ability to handle complex cross-border corporate structuring and governance for state-owned enterprises, a rare capability in a firm that otherwise serves private entrepreneurial families.

What philanthropic structures does Elsasser & Partner maintain?

The firm administers two Swiss-based foundations: ARKAT Stiftung and Raymond Taverner-Stiftung. These are legally separate entities domiciled in Switzerland and are standard vehicles for family-governed charitable giving and intergenerational legacy planning within the Swiss wealth-management ecosystem.

Profile maintained by 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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