A few agencies that issue the Glock
Australia: Royal Australian Air Force (Glock 19)
Australian Customs (Glock 17)
all Australian police services except the South Australian Police and Victoria Police.
A Glock 17 outfitted with a thumb safety was designed specifically for the Tasmania Police.
Austria: Austrian Armed Forces (Glock 17 designated Pistole 80)
Belgium: Belgian police, Belgian State Security Service
Brazil: Federal Police Department (Glock 17, Glock 19, or Glock 26 according to agent preference)
Canada: Calgary, Edmonton, Ottawa, South Coast British Columbia Transportation Authority Police Service, Toronto.
Ecuador: National Police, various special police units such as the GOE and GIR.
Finland: Police and border guard.
Fiji: Tactical Response Unit
France: French Army - certain naval and parachute units of the (Glock 17)
Germany: GSG9 of the German Federal Police, Spezialeinsatzkommandos of several state police departments.
Hong Kong: Special Duties Unit, Hong Kong Police Force.
Iceland: Icelandic National Police, Víkingasveitin, ICRU.
India: Indian Army, Indian Police, special forces.
Indonesia: Indonesian Army Kopassus, Indonesian National Police Force, Detachment 88.
Iraq: Iraqi security forces.
Israel: military and paramilitary units (Yamam, Shayetet 13, Shabak).
Italy: Italian special forces - GIS, NOCS, "Col Moschin" Regiment, COMSUBIN, and Intelligence and State Security.
Latvia: Latvian Military (Glock 17), police.
Lithuania:Lithuanian Armed Forces (Glock 17)
Malaysia: Malaysian Armed Forces, numerous other military and law enforcement agencies (9mm Glock variants).
The Netherlands: Military of the Netherlands (Glock 17),[42] Dutch police (Glock 17).
New Zealand: New Zealand Police (Glock 17).
Norway: Norwegian Army (Glock 17).
Pakistan: Pakistan Army and Pakistan Air Force, PROVOST Units and Military Police.
Philippines: Philippine National Police, National Bureau of Investigation
Poland: Polish police,[44] Polish Military Police (Glock 17)
Romania: Issued to deployed and several special operations units.
Spain: Guardia Civil's UEI (Glock 17).
Sri Lanka: Sri Lanka Police.
South Korea: South Korean Army, Blue House Security (Glock 19).
Sweden: Swedish Armed Forces (Glock 17 designated Pistol 88 and Glock 19 as Pistol 88B) Swedish Customs Service, Swedish Coast Guard.
United Kingdom: Specialist Firearms Command of the London Metropolitan Police Service
Police Service of Northern Ireland (Glock 17)
United States: FBI, Department of Treasury IRS Criminal Investigation Division], DEA, EPA Criminal Investigation Division, New York City Police Department, United States Marine Corps' official side arm (Glock-17)