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About BT
Barlocchi Treuhand

We are an established fiduciary company centrally located in Thalwil, easily accessible to our clients. Since our founding in 1981, we have continuously expanded our expertise through close collaboration with our clients and offer a wealth of long-standing experience.

New Generation – Proven Values

1981 – With a passion for numbers and people, Renata founds the sole proprietorship BT Barlocchi Treuhand. What begins as a small fiduciary office carries a clear vision from the very start.

Just two years later, in 1983, the solo entrepreneur became a family team: her husband Dario joined the company as its first employee. Together, they lay the foundation for something bigger – the family business picks up speed.

The years pass, and customer confidence grows. In 2016, the family business continues to expand: son Luca joins the company. The handover to the second generation begins.

Success requires new structures: 2019 the sole proprietorship becomes BT Barlocchi Treuhand AG (Ltd) – a legal structure that builds trust and enables growth.
2021 was supposed to be a year of celebration – 40 years of company history! But coronavirus thwarted those plans. Instead of anniversary celebrations, the company’s true strength is on display: in times of crisis, they are more reliable than ever in supporting their customers.

2024 brings a breath of fresh air: the move within Thalwil creates optimal working conditions for the expanded team and even better service.

And then, in 2023–2025, the circle is complete: Luca Barlocchi and Stefano Gmür take over the leadership together – proven values meet new energy.