Pet Sitters International (PSI) released its 2018 State of the Industry Survey, revealing that its member pet-sitting businesses performed more than 22 million pet-sitting assignments and generated more than $440 million in pet-sitting revenues last year. The association’s survey—conducted every two years—gathers data about gross business revenues, types of services most offered, average charges for services, and more. According to the organization, its member businesses averaged 137 clients and 3,816 pet-sitting assignments in 2017. The national average gross revenue for these businesses was $75,658, showing an increase over the 2016 survey results, which indicated an average of 109 clients, 2,645 pet-sitting assignments, and $60,625 gross revenue in 2015. PSI conducted its survey exclusively online from Jan. 23, 2018, to Feb. 26, 2018. Approximately 28 percent of the nearly 6,000 member businesses contacted completed the survey. Visit petsit.com.