In addition to his work as a DVM, Steven Leshem has donated to and otherwise served multiple charitable and professional organizations. One of the entities to which Steven Leshem has donated is Protectors of Animals, a not-for-profit animal rescue organization that helps cats and dogs find new homes. Through donations from people like Steve Leshem, this top-tier charity has ensured that thousands of cats and dogs get adopted.

In addition to offering cats and dogs for adoption, Protectors of Animals provides advice regarding the proper care and feeding of animal companions. It advises new animal owners to spend time with their pets, getting them used to the presence of new people in their lives, as well as to keep the house quiet and avoid overwhelming pets with friends, family, or other guests. They also encourage the establishment of a routine, especially for dogs, which tend to prefer being fed, groomed, or played with at roughly the same time each day.