AustinMohawk and Company 
Prefabricated security buildings, press boxes, cash transaction buildings, information booths, access control, parking booths, attendant booths, guard booths, equipment storage buildings, food concession booths, smoking, transit and equipment shelters with so many styles to enhance the facility and its surroundings. Standard size and custom designs Affordable, durable, low maintenance, relocate-able. (Specs and drawings available)
Lectrus 
Lectrus is a leading electrical systems integrator and custom metal enclosure manufacturer. Our product line includes electrical equipment centers, sound attenuated generator enclosures and more. Our strategic partners - the leading global electrical OEMs and top generator dealers - ship us product for integration within the enclosure being built at any one of our three US plants.
Pac-Van
Since 1993 we have been creating temporary and permanent modular buildings and prefabricated facilities for all non-residential uses. Save valuable time, money & resources – by choosing Pac-Van to design, build and manage your modular construction project. With 26 U.S. offices we can deliver your customized building where you need it. Trust the experts, call Pac-Van.
Par-Kut International
Manufacture custom & standard prefabricated portable steel buildings. Completely assembled & built to specifications to fit your architectural style & budget. Maintaining quality using single unit welded galvanized steel & UL classified factory installed electric systems. Booths (ticket, parking cashier, inspection, toll), guardhouses, shelters (attendant, bus, smoking), canopies (turnstile, sidewalk), viewing platforms, & in-plant offices.
PortaFab Corporation
PortaFab manufactures modular building systems including industrial wall partitions used in the construction of everything from inplant offices and prefabricated rooms to paint spray booths and cleanrooms.
Whitley Manufacturing Co.
Whitley provides custom modular buildings for a variety of applications. Wood frame and steel and concrete non-combustible construction types are available. We can provide permanent restrooms, supply and waste tanks, equipment shelters, and custom steel enclosures. We also deliver facilities for large, multi-story application in the commercial, educational, military, and medical sectors. Relocatable or permanent.
4specs Discussion Forum - Great place to ask questions about specifications, products and technical data. Free - no registration required to read or post (subject to moderation).
See also: 13 3421 - Pre-Engineered Buildings - for general pre-engineered buildings
AustinMohawk and Company
Prefabricated security buildings, press boxes, cash transaction buildings, information booths, access control, parking booths, attendant booths, guard booths, equipment storage buildings, food concession booths, smoking, transit and equipment shelters with so many styles to enhance the facility and its surroundings. Standard size and custom designs Affordable, durable, low maintenance, relocate-able. (Specs and drawings available)
Lectrus
Lectrus is a leading electrical systems integrator and custom metal enclosure manufacturer. Our product line includes electrical equipment centers, sound attenuated generator enclosures and more. Our strategic partners - the leading global electrical OEMs and top generator dealers - ship us product for integration within the enclosure being built at any one of our three US plants.
Pac-Van
Since 1993 we have been creating temporary and permanent modular buildings and prefabricated facilities for all non-residential uses. Save valuable time, money & resources – by choosing Pac-Van to design, build and manage your modular construction project. With 26 U.S. offices we can deliver your customized building where you need it. Trust the experts, call Pac-Van.
Par-Kut International
Manufacture custom & standard prefabricated portable steel buildings. Completely assembled & built to specifications to fit your architectural style & budget. Maintaining quality using single unit welded galvanized steel & UL classified factory installed electric systems. Booths (ticket, parking cashier, inspection, toll), guardhouses, shelters (attendant, bus, smoking), canopies (turnstile, sidewalk), viewing platforms, & in-plant offices.
PortaFab Corporation
PortaFab manufactures modular building systems including industrial wall partitions used in the construction of everything from inplant offices and prefabricated rooms to paint spray booths and cleanrooms.
Whitley Manufacturing Co.
Whitley provides custom modular buildings for a variety of applications. Wood frame and steel and concrete non-combustible construction types are available. We can provide permanent restrooms, supply and waste tanks, equipment shelters, and custom steel enclosures. We also deliver facilities for large, multi-story application in the commercial, educational, military, and medical sectors. Relocatable or permanent.