There are certainly many companies with years of experience offering professional services. However, there are not as many professional companies out there making their living by skydiving. They can advertise and claim various licences on the internet. You should request to see those licences e.g. „Certification of the Parachute School no. xy“ issued by Aeroclub CZ, they also must have Trade Certificate permitting to provide P.E. and sport services in a skydiving industry. It is a mark of quality to be USPA licence holder. Only 1 company in Czech Republic is a holder of USPA licence (see official USPA site) and that is us, Sky Service. Another important aspect is that there is only 1 operator at the airport (drop zone) – e.g. Pribram DZ has only 1 operator covering all services: skydiving and packing services, provides aircrafts, manages accommodation etc. Should another company offer the same services in Pribram, it’s highly non ethical! These companies are only buying the flying tickets from us.