I have been a customer of F. Preisig AG, Ingenieur...
I have been a customer of F. Preisig AG, Ingenieure und Planer SIA USIC for several years now and I must say that they provide an excellent service. The team is highly professional and knowledgeable, and they always deliver projects on time and within budget. I have never had any issues with them, and I highly recommend their services.