Is it alright to put a registered trademarks â„¢ to promote a site? I found a site that claims to earn money by participating on surveys that uses a registered trademarks of big companies world wide but you need to pay a membership fee in order to participate. Is there a easy way to know if they they have a permission to use the company registered trademarks? I found this on their site. How can I know if they really have a valid trademark?