When Stephen Smith started NOCD 11 years ago, he wanted to build an app for people like himself—one of the nearly 3 million Americans with obsessive-compulsive disorder (OCD)—to track their symptoms and time their therapy exercises.
Since 2018, NOCD (pronounced “No-CD”) has provided virtual appointments with therapists specializing in OCD-focused exposure and response prevention (ERP) therapy. With more than 140 million people able to access NOCD through their insurance, the company currently provides at least 1 million therapy sessions annually.
Now, NOCD—last valued at nearly $270 million in 2024, according to PitchBook—is making an acquisition and forming a parent brand that will position it as the largest telehealth provider of specialty therapy.
The company on Tuesday announced its acquisition of Rebound Health, a self-guided mental health platform focused on post-traumatic stress disorder (PTSD) and trauma. The deal—the financial terms of which weren’t disclosed—took place in November 2025.
Starting today, both companies will operate under Noto, a parent brand that takes its name from the AI-powered software platform that has fueled NOCD’s growth.
Rebound’s specialized focus on PTSD and trauma care will be integrated into Noto’s platform, which Smith says will help both companies reach more patients and expedite the process of getting them support.
A common pairing
In 2022, Smith and his team noticed there was a significant subset of NOCD users who suffered from both OCD and PTSD. Those individuals, he says, benefit from a treatment called prolonged exposure (PE) therapy, which asks patients to confront memories in order to process them.
