Moser Brothers
Member
Diamond Seal and Hydroshield are the only manufacturers ive found. The later has a $44,500 franchise fee!
Most all sealers are hydrophobic to a greater or lesser extent. Bactibarrier is a hydrophobic sealer but mainly intended to protect surfaces against bacteria and mold. Many concrete and grout sealers have hydrophobic properties mostly due to the flouropolymers present.
The rest is percent of active ingredients and marketing.