See these links to find swisstopo information which could be of interest to your business.
Surveying / Geodesy
Transition of reference frames LV03 - LV95 | Control networks | Discontinuity between the Cantons of Geneva and Vaud | Geodetic software | LV95 | LHN95 | LV03 | LN02 | Test networks | National border | Documentation / GIS | Positioning (GNSS) | Geodetic points (FPDS) | Equipment leasing | Material sales
Cadastral Surveying in Switzerland (CS) | Current state of the official cadastral survey (CS) | CSI and data model | INTERLIS GeoLanguage - Tool to describe, integrate and coordinate geodata | Cadastral survey products (CS) | Cadastral survey projects | Cadastral Surveying - Legal bases | Cadastral Surveying - Publications | Cadastral survey information bulletin INFO V+D | SWISSCadastre International
Aerial Photographs / Satellite Images
Landscape Models / Height Models