 Argentina
Argentine Air Force
 Austria
Austrian Air Force
 Belgium
Belgian Army
 Germany
Federal German Luftwaffe
 Greece
Greek Army
 Iran
Imperial Iranian Air Force
 Italy
Italian Army
 Israel
Israeli Air Force
 Japan
Japan Ground Self-Defense Force
 Katanga
Force Aérienne Katangaise
 Netherlands
Netherlands Air Force
 Nicaragua
Nicaraguan Air Force
 Norway
Royal Norwegian Air Force
 Portugal
Portuguese Army
Portuguese Air Force
 Sweden
Swedish Army
  Switzerland
Swiss Air Force
4 PA-18-150 served with the Swiss Airforce, as V-653 to V-656, from 1964 to 1975.
V654 became HB-PAV, V655 HB-PAW, V656 HB-PAX.

 Turkey
Turkish Army 
 Uganda
 Uruguay
Uruguayan Navy
 United States
United States Air Force
United States Army
 Argentina
Argentine Air Force
 Austria
Austrian Air Force
 Belgium
Belgian Army
 Germany
Federal German Luftwaffe
 Greece
Greek Army
 Iran
Imperial Iranian Air Force
 Italy
Italian Army
 Israel
Israeli Air Force
 Japan
Japan Ground Self-Defense Force
 Katanga
Force Aérienne Katangaise
 Netherlands
Netherlands Air Force
 Nicaragua
Nicaraguan Air Force
 Norway
Royal Norwegian Air Force
 Portugal
Portuguese Army
Portuguese Air Force
 Sweden
Swedish Army
  Switzerland
Swiss Air Force
4 PA-18-150 served with the Swiss Airforce, as V-653 to V-656, from 1964 to 1975. V654 became HB-PAV, V655 HB-PAW, V656 HB-PAX.
 Turkey
Turkish Army 
 Uganda
 Uruguay
Uruguayan Navy
 United States
United States Air Force
United States Army
Piper PA-18 Super Cub