| Aluminum | ||
 AAL |
 ANP |
 KIM
|
|
 Hubbell
Lighting |
NAFCO |
 Spaulding |
||
| Cast Aluminum | ||
| AAL |
ANP |
|
|
 Moldcast |
|
 Niland |
||
| Cast Iron | ||
 Spring
City Mfg |
Niland |
|
| Steel | ||
| Spaulding |
Hubbell
Lighting |
KIM |
 North
Pacific |
 KW
Industries |
NAFCO |
| Traditional | ||
| AAL |
ANP |
KIM |
| Moldcast
|
 Sterner
|
|
| Spring
City Mfg |
Niland |
|
| Traffic Structures | ||
| Spring
City Mfg |
North
Pacific |
|
| Fiberglass | ||
| North
Pacific |
 CMT
Poles |