who we are

AT THE SERVICE OF YOUR LEGACY

With Swiss excellence to support you

Nissi Trust is a Swiss trust company regulated by the FINMA.

Founded in 2025, we specialize in managing and preserving family and corporate wealth.

Swiss Lawyer | TEP Certified
International Wealth Structuring

Leadership grounded in expertise and trust

Bérénice Guignard Nava, lic. iur., TEP

Chief Executive Officer

Bérénice Guignard Nava is a Swiss lawyer and Trust and Estate Practitioner (TEP), specialized in international wealth and estate planning, as well as family governance.

She brings extensive expertise in trust management, regulatory frameworks, and cross-border taxation, advising families navigating complex and evolving environments.

Her approach is pragmatic and business-oriented, focusing on building efficient, tailored structures that preserve wealth and ensure long-term continuity.

“True wealth planning is not only about protecting assets, but about preserving legacy, clarity, and family harmony across generations.”

Our Mission

Advise each client in the efficient structuring and transfer of their wealth, combining a precise technical approach with personalized and confidential attention.

Our philosophy is built on three pillars:

trust, discretion, and excellence

These values are at the core of every relationship we establish and every decision we make for the benefit of our clients and their families.

We design bespoke wealth structures

—trusts, foundations or corporate entities— that reflect each family’s needs, values, and vision.

SWISS REGULATION

a guarantee of expertise, professionalism and trust.

BOUTIQUE SERVICES

we provide advice and personalized service to our clients.

SECURE TOOLS

Ensuring your confidentiality.