Group Profile

Having established itself as a major player in the waterworks industry in the USA, the owners decided to set up the same model into other upcoming markets across the world to service the water works industry. Thus started the journey in the United Kingdom, Mexico and India.

Group Companies

SIGMA Corporation - USA

SIGMA Corporation is a global company offering a wide range of water and wastewater infrastructure products, fire protection and OEM products. We are the leader in many of the markets in which we operate and are distinguished by our innovative quality and supply chain processes. 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 servicing the water and wastewater industries, SIGMA has grown into a global company with a major presence in the U.S and Canada, and loyal customers around the world. Read more..


Simex is an affiliate company of SIGMA located in Mexico and is an importer-distributor of valves for water and industrial applications, fittings, gibault joints, couplings and municipal castings. It has built a reputation for good quality, prompt delivery and strong sales support with its experienced sales staff and a well stocked centrally located warehouse in Guadalajara. Read more..

The SAL Group -UK

26 years dedicated manufacturing solutions provider to the global automotive industry Specialist designer, manufacturer and supplier of – precision machined complex castings and assemblies in aluminium and iron oil pumps machined forgings and assemblies screw machined components safety critical components e.g. for steering and braking systems. Read more..


Sigma ASL’s offices in Seoul,South Korea.

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