Founder Rob Kortus, a retired Coast Guard helicopter pilot and certified professional dog trainer, was inspired to establish a therapy dog testing and registry nonprofit after writing Invisible Paw Prints, a book about his dog, Sophie, and her meaningful therapy dog work across the Charlotte, NC community. What began as a personal story soon grew into a broader, mission-driven effort—now known as Invisible Paw Prints—dedicated to certifying therapy and expanding the reach and impact of therapy dogs in our local communities.