The American Society for the Prevention of Cruelty to Animals® (ASPCA®) ( https://www.aspca.org/ )
American Pet Association ( http://www.myapaonline.org/ )
American Humane ( http://americanhumane.org/ )
Animal Protection and Rescue League ( https://www.aprl.org/ )
Petfinder ( https://www.petfinder.com/ )
International Animal Rescue (IAR) ( https://www.internationalanimalrescue.org/ )
NATIONAL ASSOCIATION OF PROFESSIONAL PET SITTERS ( https://petsitters.org/ )