Alabama Professional Investigators Association

American Society for Industrial Security

Arizona Association Of Licensed Private Investigators

Arkansas Association of Professional Private Investigators

Associated Detectives of Illinois
Associated Licensed Detectives of New York State

Association of British Investigators

Association of Certified Fraud Examiners

Association of Independent Information Professionals

Associazione Italiana Investigatori Privati

Asociacion Profesional de Detectives Privados de Espana

Bund Internationaler Detektive

Bundesverband Deutscher Detektive

California Association of Licensed Investigators

California Institute For Professional Investigators

Connecticut Association Of Licensed Private Investigators

Council of International Investigators

Criminal Defense Investigation Training Council

Florida Association of Licensed Investigators
Foreningen Danske Detektiver & Erhvervsefterforskere (Danimarca)

Georgia Association of Professionals Private Investigators

Indiana Society of Professional Investigators
International Association of Chiefs of Police

International Association of Special Investigation Units

Israeli Bureau of Private Investigators

Kansas Association of Private Investigators

Kentucky Professional Investigators Association

Licensed Private Detectives Association of Massachusetts

Louisiana Private Investigators Association

Maine Licensed Private Investigators Association

Maryland Investigators and Security Association

Michigan Council of Private Investigators

National Association of Legal Investigators

National Association of Professional Process Servers

National Council of Investigative & Security Services

National Society of Professional Insurance Investigators

New England Council of State Investigator Associations

New Hampshire League of Investigators, Inc

North Carolina Association of Private Investigators

North Texas Process Servers Association

Ohio Association of Security & Investigation Services

Ohio Investigators Association
Oklahoma Private Investigators Association
Oregon Association of Licensed Investigators, Inc.

Österreichischer Detektiv-Verband (Austria)

Pacific Northwest Association of Investigators
Private Investigator's Association of Florida, Inc.

Private Investigators Association Of Virginia

Professional Investigators Alliance of Maryland, Inc.
Professional Investigators and Security Association

Private Investigator's Association of Utah

Professional Private Investigators Association of Colorado

South Eastern Association of Private Investigators

South Florida Investigators Association

Suomen Yksityisetsivä- ja Lakitoimistoliitto Ry (Finlandia)

Syndacat National des Agents de Recherches Privees (Francia)

The Private Investigators Association of Virginia

Texas Association of Licensed Investigators

Utah Association of Licensed Investigators

Vermont Association Of Licensed Detectives
World Association of Detectives