Any tips? Just cold emailing users?
for people following - some good advice I got from reddit. Obviously ask. But companies like Hotjar actually have it built into their TOS that they can use your logo for marketing
Use for what? If you are not using it as a logo for your product / company - you do not have to ask.
Thanks, are you basing that on anything specific?
My concern is that you're basically saying X company endorses you.