Massachusetts Society for the Prevention of Cruelty to Animals

"Since 1868, the MSPCA-Angell has been at the forefront of animal protection and veterinary care, providing hands-on care for thousands of animals each year. Today, the MSPCA-Angell is a world leader in animal welfare; healing, rescuing, sheltering, protecting, and advocating for more animals than any other humane organization in the United States." - https://www.mspca.org/about-us/