Setting up an SA

When the stock corporation makes sense

An SA in French, an AG in German, a stock corporation in English. It requires more capital and more formality than a Sàrl. In exchange, shareholders are not named in the commercial register, shares transfer more easily, and the form carries weight with some business partners.

01

What you need

An available company name

As for any entry in the commercial register.

Share capital

The minimum share capital is CHF 100,000. At incorporation it may be partly paid up: at least 20% of the nominal value of each share must be paid in, with a minimum total of CHF 50,000. The balance remains owed and can be called later.

Source: art. 621(1) and 632 CO

Articles of association

More detailed than a Sàrl's: the law requires them to contain more.

A board of directors

And at least one person resident in Switzerland who can represent the company: a director, or an executive officer who does not sit on the board.

A registered office

In Switzerland, your own premises or a domiciliation address.

02

How it works

  1. Name check and reservation

    With the commercial register of the canton where the company will have its seat, before anything else.

  2. Opening the blocked account and paying in the capital to be paid up

    The bank blocks the paid-up capital and issues a certificate, which forms part of the file.

  3. Drafting the articles and incorporation documents

    Articles, deed of incorporation, the directors' acceptance of office, appointment or waiver of the statutory auditor, Stampa declaration.

  4. The notary appointment

    The incorporation deed is a public deed. We prepare the file and coordinate the appointment; we do not act as notary.

  5. Entry in the commercial register

    Followed through to publication in the Swiss Official Gazette of Commerce.

  6. Getting started

    Releasing the account, social insurance registration, VAT registration where applicable, opening the accounts, share register.

03

Converting a Sàrl into an SA

This is a conversion, not a new incorporation: the company keeps its existence, its business identification number (UID) and its contracts. The capital is raised to the legal minimum for an SA, and the procedure follows the steps set out in the Merger Act.

  1. Written conversion plan
  2. Interim accounts if the balance sheet is over six months old
  3. Report and review by a licensed audit expert
  4. 30-day inspection
  5. Shareholders' resolution (two thirds of votes represented and absolute majority of capital) by notarial deed
  6. Commercial register entry
Source: art. 54 and 57 to 67 Merger Act · checked on 27 September 2026

The reason we encounter most often is a new shareholder coming in, or preparing a business transfer: shares change hands more simply than Sàrl quotas.

Preparing the incorporation or conversion of your SA

An incorporation and a conversion are prepared differently: let us know your starting point.