Electrical

An extensive range of robust fittings and weatherproof products.

Automotive

Connectivity solutions such as high brackets, busbars, and connector pins.

Power Transmission & Distribution

Connectors & structural components for cutouts, transformers, & substations.

Aerospace

Complex sensor housings & fracture-critical products.

Appliances

Robust castings and assemblies for everyday appliances.

Commercial Hardware

Finished components for commercial & residential hardware applications.

Electronics & Telecom

Precision metal stamped sensors, connectors and cast housings & covers.

Fluid Power

Durable, precision products for high-pressure applications.

Food & Beverage

Handles, leveling pins, flow valves & button housings.

Lighting

Custom housings to fully assembled commercial & industrial light fixtures.

Marine

Durable corrosion-resistant engineered castings and subassemblies.

Medical & Dental

Medical-grade parts for implants, housings, manifolds, and pumps.

Oil & Gas

Custom housings and covers for flow control, pressure valves & meters.

Power Tools

Durable yet lightweight custom metal housings.

Solar

Innovative precision metal stamped parts.

High Pressure Die Casting

High-pressure liquid metal is pressed into a precision metal mold cavity, and then cooled & solidified under pressure.

Ideal for a wide range of applications, including automotive, agricultural, electronics, and medical.

Sand Casting

Castings with complex shapes & inner cavities that are produced in a sand mold

Ideal for parts with complex shapes and inner cavities

Gravity Die Casting

A mold is filled with liquid metal using gravity and cooled and solidified in the mold to obtain a casting

Ideal for parts with complex shapes made with steel, aluminum or magnesium alloys

Investment Casting

A process used to obtain a mold without a parting surface; creates parts with high dimensional & geometric accuracy

Ideal for near-net shaped parts with complex shapes and high precision requirements

Partner Services

Custom Tooling, Machining, Surface Finishing, Special Purpose Machine Design & Development

Precision Metal Stamping

More than 80 presses convert metal sheets into custom parts

Ideal for parts for electronic connectors and microprocessor chips

Swiss Screw Machining

A specialized CNC machine capable of producing extremely small, precise parts

Ideal for complex miniature screws, contact pins & micro-fasteners

Partner Services

Rapid Prototypes, Heat Treating, Automated Assembly

Company History

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Plant Locations

Learn more about our global manufacturing facilities.

Company News

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Contact Us

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Resources

Download catalogs and key product guides.

Global Code of Conduct

Download our Code of Conduct and report violations.

Innovation at Sigma

Purposeful innovation – the continual improvement and innovation of custom-designed and precision-made products and solutions.

Engineered Solutions

Sigma offers solutions for complex product characteristics and technical requirements.

Global Supply Chain Management

U.S.-based supply chain management teams support our customers.

Partner Services

Sigma is a vertically integrated single-source solution provider.

Global Supply Chain Management

Sigma's U.S.-based supply chain management teams support our customers to ensure appropriate inventory levels, on-time deliveries, and industry-leading fill rates. Every plant follows lean manufacturing principles to shorten production lead times and produce quantities synchronized with customer demand.

cargo ship traveling through water

Global Manufacturing

Sigma has a global manufacturing footprint that includes 13 on-shore- near-shore, and off-shore facilities in the U.S., Mexico, and India. We also have third-party sourcing capabilities in China to help meet our customers’ needs.

U.S.-based Warehousing & Distribution

Our 180,000 square foot warehouse located in Garner, N.C., supports our global manufacturing by providing stocking and distribution capabilities that reduce lead times to as little as 5 days. The ability to integrate sales data to offer VMI programs and EDI capabilities for orders, invoices, and ASNs (Advanced Shipping Notices) provides customers with the data they need to manage their supply chains.

Industry-leading Service Levels

With U.S.-based warehousing and a continuous supply of inventory, Sigma is known for excellent fill rates and on-time deliveries. Our vertical integration and supply chain capabilities allow for a quicker response to demand fluctuations and increase the speed-to-market for your products.