Bungalows
Enduron
Fabricated Metals
General Railway Signal (GRS)
Harmon Electronics
Heli-Fab
L&W
PTMW
Safetran
No stranger to the railroad scene, Safetran was manufacturing a variety of railroad signaling products (including bungalows) for many decades. Among their most recognizable trackside structures were Conrail's rust-colored Corten steel bungalows.
Serrmi (Southeastern Railroad Materials Inc.)
Wabco
Wabco has been a fixture of the railroad industry for many decades. The early 1960s installations along the Seaboard Air Line have an almost art deco look to them, reaffirming their age.