NASC-Certified Pet Supplement Brands
Pet supplements are certified by the National Animal Supplement Council (NASC) quality seal — a separate program from the human cert bodies. This section indexes the pet brands carrying that seal. Pick a brand to see its NASC certifications by species.
Browse by species
Ranked by number of independent third-party certifications (Labdoor letter grade breaks ties). This reflects how thoroughly each brand is independently verified — not product quality, efficacy, or price, and not an endorsement.
| Rank | Brand | Certifications | Indep. bodies | Products | Shop |
|---|---|---|---|---|---|
| #1 Most independently tested | 21st Century | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | AI for Pet | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Alaska Naturals Pet Products | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | AniMed | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Animal Essentials | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Animal Necessity | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Annamaet Petfoods | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Ark Naturals | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Austin and Kat | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Badlands Ranch | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Bimini Pet Health | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | BioPup | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | BioZyme | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Bixbi Pet (Boulder Organics) | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Boops Pets | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | CV Sciences | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Canna Companion | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Central Garden & Pet (Farnam, Four Paws) | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Ceva Animal Health | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Charlotte’s Web | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Chill Paws | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Dale Edgar Brand | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Dechra Veterinary Products | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Direct Action Company | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Dr. Fossum’s Pet Care | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Dr. Harvey’s | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Dr. Xie Jing Tang Herbal | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Earth Animal Ventures | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Earth Bourne Curatives, LLC | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Elanco Animal Health | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | ElleVet Sciences | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Emerald Valley Natural Health | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | ExeGi Pharma | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Extract Labs | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Fera Pets | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Fi | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Fidobiotics | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Finish Line Horse Products | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Finn | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Flourishing | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | FoodScience, LLC (VetriScience & Pet Naturals) | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Four Leaf Rover | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Foxden Equine | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | FurBound | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | GNC | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Gateway Products | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Get Joy & Company | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Googipet | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Grand Meadows Nutritional Products | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Green Coast Pet | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Grizzly Pet Products | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Growve | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | H & C Animal Health | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Happijoy | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Heavenly Hounds (Iconic Brands) | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Hemp Well | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Herbsmith | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Hilton Herbs | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Honest Paws | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | HorseTech | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Hyalogic | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | IND Hemp | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | InClover | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | John Ewing Company | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | JustFoodForDogs | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | KALA Health | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Kradle | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Legacy Pack, LLC (Better Dog) | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | LifeVantage | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Liquid Health | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Majesty’s Animal Nutrition | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Manna Pro | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Mars Petcare | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Med-Vet Pharmaceuticals | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Mizner Bioscience | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Mushroom Matrix | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | NOW Foods | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | NPIC | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Native Pet | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | NaturVet | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Natural Dog Company | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Natural Immunogenics | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Nestle Purina Petcare Company | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Nootie | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Nordic Naturals | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Nulo | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Nutri-Pet Research | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Nutri-Vet | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Nutricost | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Only Natural Pet | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Open Farm | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Paw CBD | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Paw Royalty | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | PawTree | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Pawford | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Peak Performance Nutrients | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Pet Health Solutions | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Pet HealthWorks | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Pet Honesty | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Pet Parents | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Pet Releaf | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Pet Wellbeing | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | PetAlive | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | PetLab Co | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | PetScy | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Pets Best Life | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Platinum Performance | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Poseidon Animal Health | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Prime Performance Nutrition | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Primo Pup | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Pro·Sense by Spectrum Brands, Inc. – Pet, Home & Garden Division | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Ramard | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Real Mushrooms | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Response Products | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Richdel | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Ridley | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Rooted Owl | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Ruff Greens | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Rx Vitamins | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | SOURCE | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Santa Cruz Animal Health | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Sergeant’s Pet Care Products | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Silver Lining Herbs | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | SmartPak Equine | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Spectrum Brands, Inc. Global Pet Care Division (United Pet Group) | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Springtime Supplements | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Stratford Pharmaceuticals | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Super Snouts Hemp Company | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Sustenance Herbs | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | SynNutra Equine | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Synergy Labs | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Terry Naturally Animal Health | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | The Honest Kitchen | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | The Pet's Table | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Thorne | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | ThunderWorks | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Treatibles (Auntie D’s Apothecary, Calmpanion) | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Tuffy's Pet Treats | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Ultimate Pet Nutrition | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | VETCBD Hemp | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Van Beek Natural Science | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Vet Classics | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Vet Worthy | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | VetIQ | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Veterinarian's Best | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Vetnique Labs | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Vetoquinol USA, Inc. (Tomlyn Products & Vetoquinol Products) | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Vets Plus | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Virbac | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Vital Planet Pets | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | W.F. Young | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | WINPRO Pet Products | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | WellJoy | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Wellness Pet | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Whitebridge Pet Brands | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Wholistic Pet Organics | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Wonder Paws | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Wuffes | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | YUZU CBD plus | NASC | 1 | 1 | Shop:AmazoniHerb |
| #1 Most independently tested | Zesty Paws | NASC | 1 | 1 | Shop:AmazoniHerb |
- 21st Century · Cat, Dog
- AI for Pet · Dog
- Alaska Naturals Pet Products · Cat, Dog
- AniMed · Cat, Dog, Horse
- Animal Essentials · Cat, Dog, Horse
- Animal Necessity · Cat, Dog, Horse
- Annamaet Petfoods · Dog
- Ark Naturals · Cat, Dog
- Austin and Kat · Cat, Dog
- Badlands Ranch · Dog
- Bimini Pet Health · Cat, Dog
- BioPup · Dog
- BioZyme · Cat, Dog, Horse
- Bixbi Pet (Boulder Organics) · Dog
- Boops Pets · Dog
- CV Sciences · Cat, Dog
- Canna Companion · Cat, Dog
- Central Garden & Pet (Farnam, Four Paws) · Cat, Dog, Horse
- Ceva Animal Health · Cat, Dog
- Charlotte’s Web · Dog
- Chill Paws · Cat, Dog
- Dale Edgar Brand · Dog
- Dechra Veterinary Products · Cat, Dog
- Direct Action Company · Dog, Horse
- Dr. Fossum’s Pet Care · Cat, Dog, Horse
- Dr. Harvey’s · Dog
- Dr. Xie Jing Tang Herbal · Cat, Dog, Horse
- Earth Animal Ventures · Cat, Dog
- Earth Bourne Curatives, LLC · Cat, Dog
- Elanco Animal Health · Cat, Dog
- ElleVet Sciences · Cat, Dog, Horse
- Emerald Valley Natural Health · Dog, Horse
- ExeGi Pharma · Cat, Dog
- Extract Labs · Cat, Dog
- Fera Pets · Cat, Dog
- Fi · Dog
- Fidobiotics · Cat, Dog
- Finish Line Horse Products · Horse
- Finn · Dog
- Flourishing · Dog
- FoodScience, LLC (VetriScience & Pet Naturals) · Cat, Dog
- Four Leaf Rover · Dog
- Foxden Equine · Horse
- FurBound · Dog
- GNC · Dog
- Gateway Products · Horse
- Get Joy & Company · Dog
- Googipet · Dog
- Grand Meadows Nutritional Products · Dog, Horse
- Green Coast Pet · Cat, Dog
- Grizzly Pet Products · Cat, Dog, Horse
- Growve · Dog
- H & C Animal Health · Cat, Dog
- Happijoy · Cat, Dog
- Heavenly Hounds (Iconic Brands) · Dog
- Hemp Well · Cat, Dog, Horse
- Herbsmith · Cat, Dog, Horse
- Hilton Herbs · Dog, Horse
- Honest Paws · Cat, Dog
- HorseTech · Dog, Horse
- Hyalogic · Cat, Dog, Horse
- IND Hemp · Horse
- InClover · Cat, Dog, Horse
- John Ewing Company · Horse
- JustFoodForDogs · Dog
- KALA Health · Dog
- Kradle · Companion Animal
- Legacy Pack, LLC (Better Dog) · Dog
- LifeVantage · Cat, Dog
- Liquid Health · Cat, Dog
- Majesty’s Animal Nutrition · Dog, Horse
- Manna Pro · Cat, Dog, Horse
- Mars Petcare · Dog
- Med-Vet Pharmaceuticals · Dog, Horse
- Mizner Bioscience · Cat, Dog, Horse
- Mushroom Matrix · Cat, Dog, Horse
- NOW Foods · Cat, Dog
- NPIC · Cat, Dog
- Native Pet · Dog
- NaturVet · Cat, Dog, Horse
- Natural Dog Company · Dog
- Natural Immunogenics · Cat, Dog
- Nestle Purina Petcare Company · Cat, Dog
- Nootie · Dog
- Nordic Naturals · Cat, Dog
- Nulo · Dog
- Nutri-Pet Research · Cat, Dog
- Nutri-Vet · Cat, Dog
- Nutricost · Dog
- Only Natural Pet · Cat, Dog
- Open Farm · Dog
- Paw CBD · Cat, Dog
- Paw Royalty · Dog
- PawTree · Cat, Dog
- Pawford · Dog
- Peak Performance Nutrients · Horse
- Pet Health Solutions · Cat, Dog, Horse
- Pet HealthWorks · Cat, Dog
- Pet Honesty · Cat, Dog
- Pet Parents · Dog
- Pet Releaf · Cat, Dog
- Pet Wellbeing · Cat, Dog
- PetAlive · Cat, Dog
- PetLab Co · Cat, Dog
- PetScy · Dog
- Pets Best Life · Dog
- Platinum Performance · Dog, Horse
- Poseidon Animal Health · Horse
- Prime Performance Nutrition · Horse
- Primo Pup · Dog
- Pro·Sense by Spectrum Brands, Inc. – Pet, Home & Garden Division · Dog
- Ramard · Cat, Dog, Horse
- Real Mushrooms · Cat, Dog
- Response Products · Cat, Dog, Horse
- Richdel · Dog, Horse
- Ridley · Horse
- Rooted Owl · Cat, Dog
- Ruff Greens · Dog
- Rx Vitamins · Dog
- SOURCE · Dog, Horse
- Santa Cruz Animal Health · Dog, Horse
- Sergeant’s Pet Care Products · Cat, Dog
- Silver Lining Herbs · Dog, Horse
- SmartPak Equine · Dog, Horse
- Spectrum Brands, Inc. Global Pet Care Division (United Pet Group) · Companion Animal
- Springtime Supplements · Cat, Dog, Horse
- Stratford Pharmaceuticals · Cat, Dog
- Super Snouts Hemp Company · Cat, Dog
- Sustenance Herbs · Cat, Dog, Horse
- SynNutra Equine · Horse
- Synergy Labs · Dog
- Terry Naturally Animal Health · Cat, Dog, Horse
- The Honest Kitchen · Cat, Dog
- The Pet's Table · Dog
- Thorne · Dog
- ThunderWorks · Cat, Dog
- Treatibles (Auntie D’s Apothecary, Calmpanion) · Cat, Dog, Horse
- Tuffy's Pet Treats · Dog
- Ultimate Pet Nutrition · Cat, Dog
- VETCBD Hemp · Cat, Dog, Horse
- Van Beek Natural Science · Cat, Dog, Horse
- Vet Classics · Cat, Dog
- Vet Worthy · Cat, Dog
- VetIQ · Cat, Dog
- Veterinarian's Best · Dog
- Vetnique Labs · Cat, Dog
- Vetoquinol USA, Inc. (Tomlyn Products & Vetoquinol Products) · Cat, Dog, Horse
- Vets Plus · Cat, Dog, Horse
- Virbac · Cat, Dog
- Vital Planet Pets · Cat, Dog
- W.F. Young · Cat, Dog, Horse
- WINPRO Pet Products · Cat, Dog
- WellJoy · Cat, Dog
- Wellness Pet · Dog
- Whitebridge Pet Brands · Cat, Dog
- Wholistic Pet Organics · Cat, Dog, Horse
- Wonder Paws · Cat, Dog
- Wuffes · Dog
- YUZU CBD plus · Dog
- Zesty Paws · Cat, Dog