SIGMA
Engineering smarter, sustainable solutions for a stronger future.
About SIGMA
The SIGMA OEM Advantage
Founded in 2000, SIGMA OEM introduced an innovative global manufacturing model that delivers high-quality castings and components from international partners to North American OEMs. Building on an established global supply chain originally developed for waterworks products, SIGMA expanded its capabilities to serve a wide range of OEM customers.
SIGMA works directly with overseas manufacturers, aligning Western quality standards, service expectations, and business practices with local production expertise. These partnerships—spanning China, India, Indonesia, and Mexico—enable access to an extensive portfolio of precision components and scalable manufacturing solutions.
Customers benefit from long-standing supplier relationships that deliver consistent quality, dependable service, and competitive lead times—without the complexity of managing global sourcing internally.
What Makes SIGMA Different?
As part of SIGMA Companies International, SIGMA OEM leverages significant global scale to create real advantages for its customers. This includes strong purchasing power, streamlined logistics, and direct access to a trusted worldwide manufacturing network.
SIGMA clients gain global manufacturing reach, cost efficiencies, and supply chain reliability allowing them to stay focused on innovation, growth, and market expansion. SIGMA’s supplier partners operate as true extensions of its business, blending international manufacturing capabilities with Western operational standards.
Markets Served
Precision-engineered components for demanding applications
- Valve & Fire Hydrant Components.
- Industrial Valve Components.
- Pipe Restraint & Repair Systems.
- Solar Energy Collection & Storage.
- Pole Line Hardware Components.
- Material Handling Equipment.
- Agricultural & Off-Road Vehicles.
- Automotive & Truck Pump Components.
Materials Available
Engineered for performance, durability, and compliance
- Aluminum.
- HDPE.
- Cast & Ductile Iron.
- Malleable Iron.
- Carbon & Stainless Steel.
- Brass & Bronze.
- No-Lead / Eco Bronze.
- Aluminum Bronze.
Manufacturing Processes
Flexible production methods to meet exacting requirements
- Sand Casting (Green Sand, No-Bake, Shell Molding).
- Vacuum Molding.
- Investment Casting (Lost Wax / Lost Foam).
- Vertical Drawn Pipe & Bar.
- Gravity & High-Pressure Die Casting.
- Extrusion.
- Forging (Open & Closed Die).
- Sheet Metal Fabrication.
- Rotational Molding.
Have Questions?
Please contact us to learn how our capabilities and services can meet your requirements.