Sigma Corporation

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

• Pipe & Related Products
• Water Works Contractors

North American Industry Classification System (NAICS) Categories:

• Water And Sewer Line And Related Structures Construction > Dams, Waterways, Docks & Other > Water Works Contractors
• Metal Service Centers And Other Metal Merchant Wholesalers > Pipe & Related Products > Pipe Flanges & Fittings

Standard Industry Classification (SIC) Categories:

• Heavy Construction, Nec > Dams, Waterways, Docks & Other > Water Works Contractors
• Metals Service Centers & Offices > Pipe & Related Products > Pipe Flanges & Fittings