Some useful links...

Geneva Commercial Register
Official database listing companies registered in the canton of Geneva, providing legal information on their status and management.

Zefix
Swiss central register of companies, enabling searches for companies registered in the various cantons.

SOGC - Swiss Official Gazette of Commerce
Official Swiss publication containing legal announcements for companies, such as start-ups, modifications or liquidations.

FAO - Official Gazette of the Republic and Canton of Geneva
Official newspaper of the Canton of Geneva, publishing legal notices, administrative announcements and official decisions.

Chamber of Notaries
Professional organization bringing together the canton's notaries, guaranteeing the application of ethical rules and providing information on notarial services.

Cantonal legislation
All laws and regulations specifically applicable to the canton of Geneva, covering various fields such as town planning, commerce and taxation.

Federal legislation
Switzerland's general legal framework, including laws and ordinances applicable throughout the country.

LFAIE (Federal Act on the Acquisition of Real Estate by Persons Abroad)
Regulations governing the purchase of real estate in Switzerland by non-residents, aimed at controlling foreign investment in real estate.

Plan-zones
Official map showing the different land-use zones (residential, industrial, agricultural, etc.) according to Geneva planning regulations.

SITG (Geneva Territory Information System)
Interactive platform for geographic and cadastral data on the canton of Geneva, used for land-use planning and development.

SEMO (land registry)
Service providing access to official cadastral information for the canton of Geneva, including parcel delimitation and property rights.