FDNY has operated with many federal, volunteer and industrial fire departments within NYC during its history. Some are still active. Others, like the NY Fire Patrol, are now disbanded. Some agencies in NYC have firefighting capabilities. Some of these departments responded with FDNY. Some were trained by FDNY. Most had protocols with FDNY.
Here are some of these departments and agencies (I know I have missed a lot):
Independent - NY Fire Patrol; United Nations FD
Volunteer - Rockaway Point FD; Edgewater Park VFD; West Hamilton Beach FD; Gerrittsen Beach FD; Oceanic H&L Co 1; Broad Channel VFD; Richmond Eng Co 1; Aviation VFD; Roxbury VFD; Point Breeze VFD
Other Agencies - Corrections; Port Authority; NYPD; Triborough Bridge Tunnel ?
Federal: National Park Service; USCG
Military (disbanded): Bklyn Navy Yard FD; Floyd Bennett Field FD; Governor's Island FD; Ft Totten FD ?; Ft Wadsworth FD?; Ft Hamilton FD?; Miller Field FD?; Sheepshead Bay Maritime Service Training Station FD?
Special - 1939 NY World's Fair FD; 1964 World's Fair FD
Industrial - ?
