Find a Certified Company

Use the search engine below to search for AISC Certified companies by Certification category, name, city, state, and proximity to a job site. This search engine helps put specifiers and contractors in contact with Certified companies and also provides an easy way to “pre-qualify” bidders in a particular area.
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Note:"Perform work in the state of" is no longer searchable. AISC Quality Certification Program has over 1,300 participants capable of doing work in all states.


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Note: Radius search is applied to zip codes only.

KEY: Categories of Certification:

  • Standard for Steel Building Structures (STD)
  • Simple Steel Bridges (SBR) 1
  • Major Steel Bridges (CBR) 1 
  • Certified Steel Erector (CSE)
  • Advanced Certified Steel Erector (ACSE) 2
  • Bridge Component Standard (CPT)
  • Fracture Critical Endorsement (F)
  • Sophisticated Paint Endorsement-Enclosed (P1) 3
  • Sophisticated Paint Endorsement-Covered (P2) 3
  • Sophisticated Paint Endorsement-Exposed (P3) 3

1 All companies certified as AISC Major Steel Bridge fabricators automatically qualify for Simple Bridge status.

2 All companies certified as AISC Advanced Certified Steel Erector automatically qualify for Certified Steel Erector status.

3 The qualification descriptors are descending inclusive but not ascending inclusive. For example, a firm Certified as a P1 shop is also Certified as P2 and P3. A firm Certified as a P2 shop is also Certified as P3, but not P1.