Contractor Taxation specializes exclusively in hiring contractors, with partners worldwide who use umbrella companies to ensure compliance.  Remote.com benefits those companies who are focused on hiring employees, with some ability to handle contractors as well.   Remote.com does offer its remote country explorer which details all the requirements and rules for hiring employees around the world.  However, many of those items will not apply to workers contracting in Spain, so the remote.com pricing may not be a good value for a company hiring contractors.