Storm chasing companies are aware that they need to look like a local company. Many storm chasers have an address, website and basic marketing in place for areas that are prone to hail and wind storms. To verify if the company is local begin with online reviews and the date that they are written. An established company will have on line reviews dating back many years. Second ask for a local business license (there is no such thing as a general contractors license in MO). Third review their general liability and workers compensation certificate to make sure its written in and has coverage for Missouri. Finally, go to their office to sign the contract and take inventory of tale tell signs they have been there for years.