Hi, joedaddy, see the blue link at the bottom of the page, Official List of Mystery Shopping Companies. There are almost 200 companies you can sign up with. If you are looking specifically for companies offering gas assignments, by reading the forum you should be able to isolate several of the companies that do gas shops. We also have a search function so you can do searches for specific companies or for particular types of shops. As far as which companies shop in your particular area, that would be hard to tell. Most shops are regional, so the shoppers who would know best which companies shop in your area are those who live in your area and are currently doing those shops. Most may be unwilling to pass along their list to their competition.