Search. Find a Local NAPPS Pet Sitter. NAPPS is the ONLY national professional pet sitting association. PSI alone boasts more than 8000 members (that’s a lot of pet sitters) and the Internet is littered with articles claiming anyone can make money pet sitting. Zip Code . The National Association of Professional Pet Sitters' (NAPPS) website, PetSitters.org, can help you find a certified professional pet sitter in your area. Pet Sitters International (PSI) and National Association of Professional Pet Sitters (NAPPS) are the two big players in the professional pet sitter association circle. National Association of Professional Pet Sitters. NAPPS is a great resource for those that are involved in the care of all types of animals. Back to Petsitters.org. Your pet sitter is responsible for your home and your pet when you're away, so you should give the selection serious consideration. History. The ONLY national non-profit organization for professional pet sitters. Four years later, NAPPS incorporated as a nonprofit membership organization in order to provide support and serve as a voice for the expanding industry. Pet parents know the NAPPS logo stands for the best quality pet care services and safety for their homes. Becoming a NAPPS member is the most valuable investment you can make for your pet sitting business. The National Association of Professional Pet Sitters (NAPPS) was founded in 1989 by a small group of pet sitters. Reset. Facebook Twitter Pinterest YouTube Instagram.