About us

Since 1998 we have supported small and medium-sized organizations providing tax and management services

Fiduciaria Lago is a fiduciary and accounting firm located in Mendrisio, specializing in services for businesses in the tax and administrative fields.
The international know-how and experience gained over more than twenty years of operation have allowed the firm to acquire expertise in various markets and business sectors, and to professionally support its clients both at the local and international levels.

Fiduciaria Lago
Fiduciario Commercialista a Mendrisio

Consulting services for companies and citizens

  • Tax system
  • Accounting
  • Management
  • Digital

Our customer portfolio

Most of our customers are loyal and have been working with us for over ten years. Our portfolio includes customers working in multiple sectors:

  • Real estate
  • International trading
  • Healthcare system
  • Retail
  • Food & Beverage
  • Crafts industry
Complete consultancy service for businesses and private citizens
Fiduciario Commercialista a Mendrisio


The financial market has changed profoundly in recent years, also profoundly impacting the work of SMEs.
Our mission is to continue offering a local service but with an international professional approach.
For this reason, over the years we have integrated various services and established solid collaborations with industry professionals and be able to support our customers at 360°.


The team is made up of a close-knit group of professionals made up of experts in the tax, payroll, accounting and corporate practices fields. In order to offer complete advice, we have established consolidated partnerships with insurance companies, banks and law firms.

Fiduciario Commercialista a Mendrisio


Expert Suisse Membership
Expert Suisse membership
Abilitazione Revisione ASR
License ASR revision


The new office of the accountant trust firm in Mendrisio was recently inaugurated. However, the historic headquarters in Riva San Vitale remains active as a support branch.


Fiduciaria Lago Sagl
Via Lavizzari 4
CH-6850 Mendrisio

tel: +41 (0)91 648 26 00
fax: +41 (0)91 648 26 22

Legal head office
Riva San Vitale

Fiduciaria Lago Sagl
Via al Lido 2
CH-6826 Riva San Vitale

tel: +41 (0)91 648 26 00
fax: +41 (0)91 648 26 22