Swiss Financial Market Supervisory Authority (FINMA)

FINMA is Switzerland’s independent financial-markets regulator.
Its mandate is to supervise banks, insurance companies, financial institutions, collective investment schemes, and their asset managers and fund management companies.

FINMA is responsible for ensuring that Switzerland’s financial markets function effectively and comply with the Financial Services Act (FinSA) and the Financial Institutions Act (FinIA) together with the implementing ordinances.

The stability of the financial markets is in great part due to the role that FINMA plays as a regulator.
https://finma.ch/en/finma/finma-an-overview/

If your business is in providing financial services, then having an office here is a no brainer.