International OCD Foundation

"The IOCDF is the leading authority on obsessive compulsive disorder (OCD) and related disorders. The largest 501(c)3 nonprofit organization in this space, we are dedicated to serving a broad community of individuals around the world along with their family members, loved ones, mental health professionals, and researchers. What started as a small group seeking mutual support in 1986 has grown into an international organization with Affiliates in 33 U.S. states in addition to global partnerships with other OCD organizations and mental health non-profits around the world." - https://iocdf.org/about/