IANAL and you may want to read up on fair use. https://smallbusiness.chron.com/fair-use-logos-2152.html https://smallbusiness.chron.com/fair-use-logos-2152.html

IANAL and you may want to read up on fair use. https://smallbusiness.chron.com/fair-use-logos-2152.html https://smallbusiness.chron.com/fair-use-logos-2152.html My very pedestrian understanding is that as long as you aren't abusing the logo (trying to use it to show an affiliation, sell it, etc) then you're unlikely to get into trouble. It also helps if you have a form or contact page to let orgs request their logo be removed. As far as Product Hunt goes, most of these young orgs probably are happy to get the press.