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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.

Name Grade Violations
Grade Facility City Inspections Violations Last Inspected
A+ MELINDA ALVARADO ARROYO GRANDE 3 1 Jun 10, 2015
A+ MELINDA ALVARADO ARROYO GRANDE 6 0 Jan 5, 2022
A+ MELISSA ALPICHI WINCHESTER 1 1 Oct 12, 2016
F Melissa Garrod-Van Laningham Arbuckle 21 9 Jan 5, 2026
A+ MELISSA B TAMBERG VISTA 1 0 Feb 27, 2014
A+ Mercury Air Cargo SAN FRANCISCO 15 0 Mar 11, 2022
A+ Mercury Air Cargo LLC - SFO - San Francisco International Airport San Francisco 3 0 Jan 8, 2026
A+ Mercury Air Cargo - SFO - San Francisco International Airport SAN FRANCISCO 8 0 Apr 8, 2025
A+ MICHAEL W BROWN ARROYO GRANDE 1 0 Mar 26, 2019
A KARLA & MICHAEL MAJEWSKI FALLBROOK 10 4 Mar 13, 2018
A+ MICHAEL MASTROIANNI SALINAS 2 1 Aug 5, 2014
A+ MICHAEL MASTROIANNI SALINAS 5 1 Nov 20, 2017
C MICKE GROVE ZOO LODI 13 6 Dec 17, 2025
A MOBILE ZOO OF SOUTHERN CALIFORNIA INC DESERT HOT SPRINGS 12 2 Feb 10, 2026
A+ MOLECULAR DIAGNOSTIC SERVICES, INC. SAN DIEGO 2 0 Jun 17, 2014
C+ Molecular Matrix Inc. VALLEY FORD 11 7 Aug 8, 2019
A+ MONTEREY BAY AQUARIUM MONTEREY 10 0 Jan 29, 2026
A+ MONTEREY BAY AQUARIUM MONTEREY 10 0 Mar 12, 2025
A+ Monterey Zoological Society SALINAS 13 1 Jun 18, 2025
A+ MOO-VA-PET TRACY 1 0 Mar 12, 2019
A+ Moonpaws Pet Inc GLENDORA 2 0 May 28, 2021
A+ Moonpaws Pet Inc. West Covina 1 0 Feb 15, 2024
F MORRO BAY MARINE REHABILITATION CENTER MORRO BAY 11 5 May 9, 2018
A MOUNT SAN ANTONIO COLLEGE WALNUT 12 2 Apr 3, 2025
A+ NANCE FITE NORCO 2 1 Mar 5, 2015
A+ NANCY CALLAHAN SANTA MARIA 5 1 Mar 14, 2017
A+ Mobile Zoo of the Desert DESERT HOT SPRINGS 3 1 Jul 26, 2016
A+ NATALIE REDDING TEMECULA 1 1 Apr 21, 2014
A+ NATIONAL MARINE MAMMAL FOUNDATION SAN DIEGO 11 2 Jul 1, 2025
A+ Nationwide Birds LLC Buena Park 2 0 Sep 25, 2025

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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