Yes, FameBit is a legitimate company offering the unique service of an influencer "marketplace."
Famebit was founded by Agnes Kozera and David Kierzkowski in 2013 and was headquartered in Santa Monica, California.
Through FameBit, customers can find, hire, and work with a variety of YouTube influencers.
Famebit provides a platform for brand owners to post their projects, and connects them with brand influencers to promote their brands on YouTube. Famebit was #5 Product of the Day on Product Hunt on July 8, 2014.