• Council of the District of Columbia
• Department of Consumer and Regulatory Affairs
• Department of Corrections
• Department of Motor Vehicles
• Department of Public Works
• District of Columbia (all city agencies)
• Emergency Management Agency (DCEMA)
• Financial Responsibility and Management Assistance Authority
• Fire and Emergency Medical Services Department
• Office of the D.C. Inspector General
• Office of the Mayor
• Superior Court of the District of Columbia
• U.S. Attorney's Office for the District of Columbia

University Police

• American University Police Department
• Catholic University Department of Public Safety
• Georgetown University Department of Public Safety
• The George Washington University Police Department
• Johns Hopkins University Security Department

Federal Agencies

• Bureau of Alcohol, Tobacco, and Firearms (ATF)
• Bureau of Justice Assistance (BJA)
• Bureau of Justice Statistics (BJS)
• Community Relations Service
• Drug Enforcement Administration (DEA)
• Executive Office for Weed & Seed
• Federal Bureau of Investigation (FBI)
• Federal Law Enforcement Training Center (FLETC)
• Federal Protective Service
• Gang Resistance Education And Training Program (G.R.E.A.T.)
• Immigration and Naturalization Service
• National Drug Intelligence Center
• National Highway Traffic Safety Administration
• National Institute of Justice (NIJ)
• National Violence Prevention Resource Center
• Naval Criminal Intelligence Service
• Office for Victims of Crime
• Office of Community Oriented Policing Services (COPS)
• Office of Juvenile Justice and Delinquency Prevention (OJJDP)
• Office of National Drug Control Policy (ONDCP)
• Office of the Police Corps and Law Enforcement Education
• United States Attorney General
• United States Customs Service
• United States Department of Justice
• United States Intelligence Community
• United States Marshals Service
• United States Park Police
• United States Postal Inspection Service
• United States Secret Service
• Violence Against Women Office

• Anne Arundel County Sheriff's Department
• Annapolis Police Department
• Baltimore City Police Department
• Baltimore County Police Department
• Baltimore County Sheriff's Office
• Bladensburg Police Department
• Charles County Sheriff's Office
• Cheverly Police Department
• Cumberland Police Department
• Frederick County Sheriff's Office
• Gaithersburg Police Department
• Greenbelt Police Department
• Hyattsville Police Department
• Laurel Police Department
• Maryland State Police
• Montgomery County Police Department
• Montgomery County Sheriff's Office
• Prince George's County Police Department
• Prince George's County Sheriff's Department

Virginia Agencies

• Alexandria Police Department
• Arlington County Police Department
• Arlington County Sheriff's Office
• Fairfax County Police Department
• Fairfax County Sheriff's Office
• Frederick County Sheriff's Office
• Vienna Police Department
• Virginia State Police
• Virginia State Police Sex Offender Registry Search
• Prince William County Police Department

Other Organizations

• Concerns of Police Survivors (COPS) (also see DC Chapter)
• Guardian Angels (also see DC Chapter)
• HEROES, Inc.
• International Association of Chiefs of Police
• Metropolitan Police Boys and Girls Clubs
• Metropolitan Washington Council of Governments
• National Criminal Justice Reference Service (NCJRS)
• National Law Enforcement Officers Memorial Fund
• Police Executive Research Forum
• Wives of Police Officers