American Humane Association (AHA): http://www.americanhumane.org/

Association of Pet Dog Trainers (APDT)): http://www.apdt.com/

California Veterinary Medical Association (CVMA): http://www.cvma.net/

LA 411 - Entertainment Industry Animal Trainers: http://www.la411.com

National Association of Professional Pet Sitters (NAPPS): http://www.petsitters.org/

National Association of Veterinary Technicians in America (NAVTA): http://www.navta.net/

Pet Sitters International (PSI): http://www.petsit.com/

Whisker Kisses Koalition: http://www.whiskerkisses.org