AMBICO
Manufacturers since 1955 of blast resistant products from a low range of 15 PSF (2 kpa) to over 50 PSI (350 kpa). Fire labeled products tested compliant with NFPA-80 (UL, WHI.) Light weight blast resistant products are readily available complete with builders hardware, providing ease-of-operation. Units available with factory pre-installed blast-resistant glazing.
International Door, Inc.
Blast doors are available in Vertical Lift, Sliding, Turnover or Hinged applications. Blast doors are custom designed for your specific requirements with blast ratings starting at 100 PSF. Blast doors can be manufactured as a combination blast and fire rated (up to 3 hour fire rating) system and are furnished for manual or motor operation.
Krieger Specialty Products 
Custom manufactured blast and pressure resistant doors available up to 20 PSI. Tested and certified according to UFC, UBC, ICBO, FM, NIJ, TM5, ASTM, and Haz Mat. Clients include Pentagon, General Motors, Chevron, US Air Force and Boeing.
Overly Door Company
The widest range of blast- and pressure-resistant door and window systems in the world. Overly offers pre-engineered blast doors for very low range, low range, and mid-range blasts (3-20psi). Our high range blast doors and windows are custom-designed to meet your project requirements. Additional performance options – airtight, acoustical, UL bullet-resistant – can also be added.
Protective Door Industries
PDI's Sonicbar® blast and airtight doors assure protection and dependable service under critical conditions. PDI certifies the entire assembly and analyzes the criteria to construct a door panel that is thin and light as possible. All swing doors contain latchsets, frame, anchorage and hinges and all sliding doors include blast restraints, tracks/trolleys and other components.
Stiles Custom Metal 
Stiles builds doors to your exact specifications. We afford a remarkable degree of design freedom, primarily in non-typical situations where a standard-sized product in inappropriate. With a solid reputation for producing the finest built-to-order steel, stainless steel and bronze doors and window systems in the world, Stiles consistently delivers on-time and at a reasonable cost.
United States Aluminum 
After more than half a century of manufacturing and engineering excellence, United States Aluminum has positioned itself as a leading architectural aluminum provider to the construction industry. Producing quality entrances, storefronts, curtain walls, windows, hurricane resistant, blast mitigation, and ribbon wall systems. Facilities across the United States and Canada provide regional customer support and distribution.
United States Bullet Proofing, Inc.
Leading edge high security doors, windows and curtain wall. Our products meet or exceed UL752 Ballistic standards, GSA Blast, DOD Forced Entry Protection/Anti-Terrorism criteria, and DOS certified. Whether your application requires a standard product or a custom design build we supply an engineered product with CAD drawings, blast analysis and complete test reports.
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AMBICO
Manufacturers since 1955 of blast resistant products from a low range of 15 PSF (2 kpa) to over 50 PSI (350 kpa). Fire labeled products tested compliant with NFPA-80 (UL, WHI.) Light weight blast resistant products are readily available complete with builders hardware, providing ease-of-operation. Units available with factory pre-installed blast-resistant glazing.
International Door, Inc.
Blast doors are available in Vertical Lift, Sliding, Turnover or Hinged applications. Blast doors are custom designed for your specific requirements with blast ratings starting at 100 PSF. Blast doors can be manufactured as a combination blast and fire rated (up to 3 hour fire rating) system and are furnished for manual or motor operation.
Krieger Specialty Products
Custom manufactured blast and pressure resistant doors available up to 20 PSI. Tested and certified according to UFC, UBC, ICBO, FM, NIJ, TM5, ASTM, and Haz Mat. Clients include Pentagon, General Motors, Chevron, US Air Force and Boeing.
Overly Door Company
The widest range of blast- and pressure-resistant door and window systems in the world. Overly offers pre-engineered blast doors for very low range, low range, and mid-range blasts (3-20psi). Our high range blast doors and windows are custom-designed to meet your project requirements. Additional performance options – airtight, acoustical, UL bullet-resistant – can also be added.
Protective Door Industries
PDI's Sonicbar® blast and airtight doors assure protection and dependable service under critical conditions. PDI certifies the entire assembly and analyzes the criteria to construct a door panel that is thin and light as possible. All swing doors contain latchsets, frame, anchorage and hinges and all sliding doors include blast restraints, tracks/trolleys and other components.
Stiles Custom Metal
Stiles builds doors to your exact specifications. We afford a remarkable degree of design freedom, primarily in non-typical situations where a standard-sized product in inappropriate. With a solid reputation for producing the finest built-to-order steel, stainless steel and bronze doors and window systems in the world, Stiles consistently delivers on-time and at a reasonable cost.
United States Aluminum
After more than half a century of manufacturing and engineering excellence, United States Aluminum has positioned itself as a leading architectural aluminum provider to the construction industry. Producing quality entrances, storefronts, curtain walls, windows, hurricane resistant, blast mitigation, and ribbon wall systems. Facilities across the United States and Canada provide regional customer support and distribution.
United States Bullet Proofing, Inc.
Leading edge high security doors, windows and curtain wall. Our products meet or exceed UL752 Ballistic standards, GSA Blast, DOD Forced Entry Protection/Anti-Terrorism criteria, and DOS certified. Whether your application requires a standard product or a custom design build we supply an engineered product with CAD drawings, blast analysis and complete test reports.