Ethos Veterinary Health is a network of specialty and emergency veterinary hospitals founded in 2015 from the merger of four specialty groups and based in Woburn, Massachusetts. Since 2021 it has been part of National Veterinary Associates (NVA) as NVA's specialty and emergency care network, with over 140 hospitals in the US and Canada, more than 1,500 specialty doctors and 11,000+ team members. It also runs clinical research and the VetBloom veterinary learning platform, and has been led by President Leslie Storms since December 2025.