Many top tier crowdfunding campaigns do not like putting banners for PR agencies on their profile page. A product that goes viral without doing any PR work looks much better than one that fought long and hard for every bit of coverage. This is true for startups at the unicorn level as well, yet they all have in house PR departments filled with hundreds of staff.
Feel free to email us and ask for an intro to some of our past clients. For a faster reference check, watch the videos on all of our case study pages that show our email conversations with some of the top tier journalists we persuaded to cover them.