Maryland rescue and adoption shelters

SPCA of Anne Arundel County  - Annapolis

Baltimore Animal Rescue and Care Shelter, Inc. (BARCS)  -  Baltimore

Charm City Animal Rescue   -  Baltimore

Feline Rescue Association - Baltimore (Cats Only)

House Rabbit Society  - Baltimore (Rabbits Only)

Maryland SPCA - Baltimore

M.J.'s Animal Sanctuary Inc. -  Bowie

SPCA / Humane Society of Prince George's County  - Bowie

St. Mary's Animal Welfare League  - California

Paws for Life - Chesapeake City (Dogs Only)

Animal Welfare Society of Howard County  -  Columbia

Tara's House Animal Rescue Inc.  -  Columbia

Howard County Animal Shelter - Columbia

Howard County Cat Club - Columbia

Talbot County Humane Society - Easton

Cecil County SPCA - Elkton

Frederick County Humane Society - Frederick

Small Angels Rescue - Frederick

All Breed Rescue & Referral  - Gaithersburg

Montgomery County SPCA  - Gaithersburg

Friends of Montgomery County Animals - Germantown

The Partnership for Animal Welfare - Greenbelt

Rude Ranch Animal Rescue - Harwood

Animal care center - Hughesville

Little Angels Pet Rescue and Retirement Home  -  Hurlock

Mid-Atlantic German Shepard Rescue -  Mt. Airy

Tails of Hope Sanctuary - Mt. Airy

The Equihab Foundation - North East (Horses Only)

Delmarva Cat Connection - Ocean City (Cats Only)

The Ark of Hope Rescue  -  Oldtown

Pawprints Across the Heart  - Owings

Defenders of Animals Rights Inc.  Shelter  -  Phoenix

Montgomery County Humane Society - Rockville

Mutts Matter Rescue   -  Rockville

Potomac Stray Cat Rescue - Rohrersville (Cats Only) 

Frederick County Animal Shelter - Rosemont

MetroPets Online - Silver Spring

Humane Society of Calvert County - Sunderland

Humane Society of Southern Maryland  - Temple Hills

Humane Society of Charles County - Waldorf

Montgomery County SPCA - Washington Grove

Somerset dog control  - Westover

Doberman Assistance, Rescue & Education (DAR&E) - Baltimore

Mid-Atlantic Border Collie Rescue - Chestertown

ALAC Rescue - Gaithersburg

United Yorkie Rescue - Glenarden

Jack Russell Terrier Club of America, Inc.  - Lutherville

Lab Rescue of the LRCP, Inc. - Silver Spring

Greyhound Welfare, Inc. - Takoma Park

Recommended Veterinary clinics and animal hospitals

Other

Dogs Finding Dogs - Baltimore

Animal Welfare League of Frederick County - Frederick County foster network

Gentle Giants Draft Horse Rescue  -  Mount Airy

Paws of Tomorrow, Inc. - Ocean City

Tailed Treasures of Maryland Inc. - Rockville

Other resources:  

Pitbull Puppies for adoption and rehoming Facebook Group: Nationwide