Yes and no. I believe it all depends on the network/company. For an example, they asked my co-worker to cover up the Nike logo on his t-shirt. They had no problem with my hoodie though, which had a visible Hollister logo.
If it does turn out to be a problem, I can just send the participating founders a release form to sign.
If it does turn out to be a problem, I can just send the participating founders a release form to sign.