Gateway began providing community-based treatment services in Delaware in 2004. In recent years, Gateway expanded their services to provide Cognitive Behavioral Therapy within the Department of Correction. In 2019 services were expanded to provide assessment and SUD intervention services in all four probation and parole offices located throughout the state. While Gateway no longer provides Cognitive Behavioral Therapy services, the assessment and SUD intervention services continue to be provided at all probation and parole offices.

= Male Probation and Parole Assessment and SUD Intervention Centers
= Female
New Castle County (Hare's Corner) Probation and Parole
26 Parkway Circle
New Castle, DE
New Castle County (Cherry Lane) Probation and Parole
314 Cherry Lane
New Castle, DE 19720
Sussex County Probation and Parole
22855 Dupont Blvd
Georgetown, DE 19947
Kent County Probation and Parole
511 Maple Pkwy
Dover, DE 19901