Sigma Corporation

Sigma Corporation is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Construction
• Metals Service Centers & Offices

North American Industry Classification System (NAICS) Categories:

• Other Heavy And Civil Engineering Construction
• Metal Service Centers And Other Metal Merchant Wholesalers

Standard Industry Classification (SIC) Categories:

• Heavy Construction, Nec
• Metals Service Centers & Offices