Breeders in California
749 USDA-licensed facilities
California is home to 749 USDA-licensed animal facilities, including commercial breeders, dealers, exhibitors, and research institutions operating under federal Animal Welfare Act oversight. Each facility listed below has been inspected by USDA APHIS veterinary medical officers, and their complete inspection histories are available for public review.
The compliance grades shown range from A+ (excellent — few or no violations) to F (failing — extensive or critical violations). These grades are calculated by BreederCheck based on the number, severity, and recency of documented violations. A high violation count does not always indicate current problems — some facilities have improved significantly after being cited — but it does tell you where to look more carefully and what questions to ask before purchasing an animal.
| Grade | Facility | City | Inspections | Violations | Last Inspected |
|---|---|---|---|---|---|
| A+ | Sheryl Baylos | LA PALMA | 2 | 0 | Sep 28, 2015 |
| A+ | Siemens Healthcare Diagnostics Inc | Gorman | 21 | 0 | May 5, 2025 |
| A+ | SIEMENS HEALTHCARE DIAGNOSTICS INC | GORMAN | 18 | 1 | May 29, 2025 |
| A+ | SIEMENS HEALTHCARE DIAGNOSTICS INC | GORMAN | 19 | 0 | Jun 24, 2019 |
| A+ | SIEMENS HEALTHCARE DIAGNOSTICS, INC | GORMAN | 18 | 1 | Jun 19, 2019 |
| A+ | Sierra Research Laboratories Inc. | MODESTO | 12 | 2 | Aug 15, 2025 |
| C | Sierra Wildlife Rescue | Placerville | 25 | 6 | Jan 21, 2026 |
| C+ | SILVER SCREEN ANIMALS INC. | ACTON | 3 | 7 | Jun 20, 2017 |
| A+ | Silver Star Animal Transports L L C | YUBA CITY | 2 | 1 | Oct 5, 2016 |
| A+ | SIMMEC TRAINING SOLUTIONS | OCEANSIDE | 11 | 3 | Aug 19, 2025 |
| F | Six Flags Discovery Kingdom | Vallejo | 35 | 22 | Jun 11, 2025 |
| A+ | SoCal Laboratory Services Corp. | SAN DIEGO | 2 | 0 | Sep 4, 2014 |
| A+ | SONOMA COUNTY WILDLIFE RESCUE | PETALUMA | 2 | 0 | Oct 2, 2015 |
| A+ | Sonoma County Wildlife Rescue | Petaluma | 14 | 2 | Nov 24, 2025 |
| A+ | Sophia Kryszek | Los Angeles | 10 | 0 | Jan 10, 2024 |
| A+ | SOPHIE TZU MORTON | DIAMOND BAR | 2 | 0 | Dec 15, 2015 |
| A+ | Sorrento Therapeutics | San Diego | 3 | 0 | Jun 21, 2023 |
| A | CAMP CEDAR FALLS | ANGELUS OAKS | 1 | 4 | Sep 9, 2014 |
| A+ | CAMP CEDAR FALLS | ANGELUS OAKS | 4 | 3 | Apr 5, 2017 |
| A+ | SOUTHERN CA OF SEVENTH DAY ADVENTIST | ANGELUS OAKS | 3 | 0 | Jan 22, 2020 |
| A+ | SPRING OF EVOLUTION, INC. | ACTON | 10 | 3 | Feb 4, 2025 |
| A+ | Squirrel Monkey Haven | GALT | 7 | 1 | Apr 16, 2025 |
| D | SRI INTERNATIONAL | MENLO PARK | 18 | 4 | Mar 5, 2026 |
| A+ | JOE CATES & STACEY CATES | WILTON | 2 | 0 | Apr 25, 2018 |
| A+ | STANBRIDGE COLLEGE | IRVINE | 11 | 1 | May 17, 2023 |
| F | STANFORD UNIVERSITY | STANFORD | 16 | 11 | Dec 8, 2025 |
| D | Stanislaus Wildlife Care Center | Hughson | 16 | 7 | Aug 7, 2025 |
| D | STAR Eco Station | Culver City | 14 | 2 | Dec 8, 2025 |
| F | Stephanie Taunton | Hesperia | 18 | 23 | Sep 24, 2025 |
| D | STEVE BERENS ANIMALS OF DISTINCTION, INC. | ACTON | 7 | 8 | May 10, 2016 |
Understanding Breeder Licensing in California
Federal licensing through the USDA is required for any breeder who sells animals wholesale, maintains more than a threshold number of breeding females, or sells animals sight-unseen over the internet or by mail. Breeders who sell directly to buyers from their own premises, and who maintain four or fewer breeding females, are generally exempt from federal licensing under the retail pet store exemption — although this exemption was narrowed significantly in 2013.
In addition to federal requirements, California may impose its own state-level breeder regulations. These can include state licensing requirements, limits on the number of intact breeding animals, mandatory spay/neuter provisions for sold animals, lemon laws that guarantee buyer recourse for undisclosed health problems, and required veterinary health certificates at the time of sale. State laws vary enormously — some states have comprehensive breeder protection statutes while others have virtually no state-level oversight beyond what the USDA provides.
The facilities shown on this page are those with active or recently expired federal USDA licenses in California. Breeders operating below the federal threshold or selling only within the state may not appear in this database. If you are buying a pet from any breeder in California, we recommend checking both federal records here and any applicable state licensing databases.
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