Passing client database info into a hubspot form


Hi, We’re trying to pass information from a search on our customers website mysql database. A user for example, searches for a contractor by zipcode, the page displays the results of the contractor info. The user “selects” a contractor and then would go to a Hubspot form, to submit their information. The contractor information (ideally we would like it to be hidden) would then be entered into Hubspot and Salesforce (along with the Contractor Name (that we want to pass. Anyone have any ideas on this?