Company Units

Hazardous Material Companies:

 * Hazardous Materials Company 10, assigned to Firehouse __
 * Hazardous Materials Company 2, assigned to Firehouse __

Rescue Squad Companies:

 * Rescue Squad Company 1, assigned to Firehouse 20
 * Rescue Squad Company 3, assigned to Firehouse 51
 * Rescue Squad Company 4, assigned to Firehouse __
 * Rescue Squad Company 6, assigned to Firehouse 53
 * Rescue Squad Company 8, assigned to Firehouse 33

Ambulance Companies:

 * Ambulance Company 155, assigned to Firehouse __, appears in S5 E15
 * Ambulance Company 154, assigned to Firehouse __
 * Ambulance Company 152, assigned to Firehouse __, appears in S5 E15
 * Ambulance Company 150, assigned to Firehouse __, appears in S_ E_
 * Ambulance Company 102, assigned to Firehouse __ - S2 E8
 * Ambulance Company 99, assigned to Firehouse 20
 * Ambulance Company 98, assigned to Firehouse __
 * Ambulance Company 97, assigned to Firehouse __, appears in S5 E15
 * Ambulance Company 96, assigned to Firehouse 27
 * Ambulance Company 79, assigned to Firehouse __, appears in S5 E15
 * Ambulance Company 77, assigned to Firehouse __, appears in S4 E14
 * Ambulance Company 76, assigned to Firehouse 33
 * Ambulance Company 74, assigned to Firehouse __
 * Ambulance Company 72, assigned to Firehouse __
 * Ambulance Company 61, assigned to Firehouse 51
 * Ambulance Company __, assigned to Firehouse __

Battalion Company's

 * Battalion __, assigned to Firehouse 90 - (BC Dallas Paterson) - S4
 * Battalion __, assigned to Firehouse 19 - (BC ____ Murphy) - (S10 E1)
 * Battalion 32, assigned to Firehouse 21 - (BC ______ Burwell) - S4 E15
 * Battalion 26, assigned to Firehouse _l - (BC Dan Weiss) - S3 E23
 * Battalion 25, assigned to Firehouse 51 - (BC Wallace Boden)
 * Battalion 22, assigned to Firehouse _l - (BC Benjamin Severide)
 * Battalion __, assigned to Firehouse _l - (BC Tom Coletti), S5 E6 and E14
 * Battalion __, assigned to Firehouse _l - (BC ____ Benton), S8 E?
 * Battalion __, assigned to Firehouse _l - (BC ____ Wilson), S8 E17
 * Battalion 17, assigned to Firehouse 17

Engine Company's

 * Engine Company 128, assigned to Firehouse 128
 * Engine Company 118, assigned to Firehouse 118
 * Engine Company 111, assigned to Firehouse 111
 * Engine Company 105, assigned to Firehouse 105
 * Engine Company 90, assigned to Firehouse 90
 * Engine Company 89, assigned to Firehouse 89
 * Engine Company 77, assigned to Firehouse 77
 * Engine Company 67, assigned to Firehouse 67
 * Engine Company 66, assigned to Firehouse 66
 * Engine Company 51, assigned to Firehouse 51
 * Engine Company 40, assigned to Firehouse 40
 * Engine Company 37, assigned to Firehouse 37
 * Engine Company 25, assigned to Firehouse 25
 * Engine Company 24, assigned to Firehouse 24
 * Engine Company 21, assigned to Firehouse 21 (S_ E_)
 * Engine Company 34, assigned to Firehouse 24 (S8 E_)
 * Engine Company 20, assigned to Firehouse 20

Truck Companies:

 * Truck Company 94; assigned to Firehouse __ (appears in S1 E5)
 * Truck Company 93, assigned to Firehouse __
 * Truck Company 92, assigned to Firehouse __
 * Truck Company 89, assigned to Firehouse __
 * Truck Company 81, assigned to Firehouse 51
 * Truck Company 75, assigned to Firehouse 27
 * Truck Company 74, assigned to Firehouse __ (Appears in S10 E6)
 * Truck Company 72; assigned to Firehouse 25
 * Truck Company 70, assigned to Firehouse __
 * Truck Company 68, assigned to Firehouse 20
 * Truck Company 67, assigned to Firehouse __
 * Truck Company 66, assigned to Firehouse 105
 * Truck Company 65, assigned to Firehouse __
 * Truck Company 64, assigned to Firehouse 90
 * Truck Company 63, assigned to Firehouse __
 * Truck Company 43, assigned to Firehouse 21

Command Staff Cars

 * Car No. 2-2-9
 * Chicago Fire Commissioner (S7 E16) FC Carl Grissom Car
 * Assistant Deputy Fire Commissioner (S8 E13) - ADFC Jerry Gorsch Car
 * Deputy District Fire Chief (S4 E13) - DDC Steve Walker's Car
 * Deputy District Fire Chief (S5 E14) - DDC Jim Anderson's Car
 * Deputy District Fire Chief (S5 E15) - DDC Steve Walker's Car
 * Battalion Fire Chief (S6 E3) - BC Sam Mullins Car
 * Car No. 2-8-9
 * Hazardous Materials Incident Team (S_ E_) - LT Zach Torbett Car
 * Deputy District Fire Chief (S6 E16) - DDC Carl Grissom Car
 * Car No. 2-7-9:
 * Deputy District Chief (S7 E6) - ADFC Jerry Gorsch Car
 * Car No. 2-6-9
 * Officer of Fire Investigations (S9 E1) - Background