SIGMA Corporation offers a wide range of waterworks, fire protection, and OEM products for customers at home and abroad. SIGMA’s innovative quality and supply chain processes have made us an industry leader, and we continue to develop new products and services, meeting the changing needs of our valued customers every day.

Established in 1985 by engineers with new ideas for supplying AWWA pipe fittings, SIGMA has grown into a multi-million dollar international corporation with loyal customers in all 50 US States, all 10 Canadian Provinces, as well as in the Middle East, Europe, South America and Central America.

We continuously strive to create safer, better, more cost-effective products for the worldwide water and wastewater industry. And staying true to our roots, SIGMA still provides the widest selection of fittings on the market today.