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Breeders in Maryland

139 USDA-licensed facilities

Maryland is home to 139 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+ Party Animals, LLC Sudlersville 7 0 Sep 23, 2025
A+ PATSY MCKENZIE OAKLAND 1 0 Apr 3, 2014
C PLUMPTON PARK ZOOLOGICAL GARDENS INC RISING SUN 4 4 Dec 11, 2014
C+ PLUMPTON PARK ZOOLOGICAL GARDENS INC RISING SUN 22 7 Aug 27, 2025
A+ POSITIVE DOG TRAINING AND ANIMAL ACTORS L L C SILVER SPRING 7 3 Mar 15, 2019
A+ Bioqual, Inc ROCKVILLE 1 0 Jul 15, 2025
A+ QUANTEM AVIATION SERVICES LLC BALTIMORE 14 0 Oct 28, 2021
A+ RACHEL LINDERMAN STREET 4 0 Oct 7, 2019
A+ RACHEL PHELPS GLEN BURNIE 6 1 May 19, 2021
F Salisbury Zoological Park Salisbury 17 9 Jan 8, 2026
A+ SAMANTHA VALLE MOUNT AIRY 8 3 Jun 24, 2021
F Samantha Valle Point of Rocks 9 7 Feb 21, 2025
A+ SERENITY FARM INC BENEDICT 5 0 Jun 18, 2018
A+ Serenity Farm Inc Benedict 7 1 Mar 12, 2025
B+ SHANKS EXOTIC INC HAGERSTOWN 13 3 Jan 20, 2026
F DIANE M MIELKE SIDNEY N MIELKE DENTON 10 25 Jun 30, 2022
A+ SIGMOVIR BIOSYSTEMS INC ROCKVILLE 13 0 Dec 16, 2025
A+ SIGMOVOR BIOSYSTEMS INC ROCKVILLE 12 0 Dec 16, 2025
A+ SINAI HOSPITAL OF BALTIMORE BALTIMORE 4 1 Jun 20, 2017
A+ SMITHERS AVANZA TOXICOLOGY SERVICES LLC GAITHERSBURG 6 0 Nov 28, 2018
A+ SMITHERS AVANZA TOXICOLOGY SERVICES LLC GAITHERSBURG 6 0 Nov 28, 2018
A+ SOBRAN INC BALTIMORE 9 1 Jul 24, 2019
A+ SPRING VALLEY LABORATORIES INC SYKESVILLE 2 0 Jul 28, 2015
A+ SPRING VALLEY LABORATRORIES, INC. SYKESVILLE 2 2 Jul 28, 2015
A+ SQUEALS ON WHEELS EVENTS LLC POTOMAC 5 1 Apr 28, 2021
A+ IRVING MC CONNELL SILVER SPRING 4 1 Dec 15, 2016
D THOMAS D. MORRIS INC UPPERCO 18 8 Dec 23, 2025
F THOMAS D. MORRIS, INC REISTERSTOWN 16 10 Apr 3, 2025
B+ Tiffany Mielke Diane Mielke Denton 8 4 Jan 7, 2026
A+ Tonix R&D Center, LLC Frederick 4 0 Feb 13, 2025

Understanding Breeder Licensing in Maryland

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, Maryland 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 Maryland. 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 Maryland, we recommend checking both federal records here and any applicable state licensing databases.

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