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

Learn more about our company milestones.

Plant Locations

Learn more about our global manufacturing facilities.

Company News

See our company announcements and press releases.

Contact Us

Let us know how we can help create a solution for you

Resources

Download catalogs and key product guides.

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.

Great To Do Business With

Our goal is to be your partner of choice by being a company that is great to do business with – a company you can trust to continually improve and innovate products and services to solve your diverse connection needs.

Sigma Castings

Global manufacturer of die castings, sand castings, and investment castings with more than 260 metal/alloy combinations.

Sigma Connectivity

High-quality precision metal stamping, specializing in tight tolerance products with complex geometry.

The Markets We Serve

We supply custom-made products and solutions to global leaders in diverse market segments.

Electrical

A broad selection of certified OEM and retail products, backed with U.S.-based customer service.

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Automotive

Experts at making mission-critical sensors and connectors.

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Power Transmission & Distribution

Durable, mission-critical parts that help build and maintain the power grid.

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Aerospace

Complex sensor housings & fracture-critical products.

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Appliances

Strong, defect-free door hinges and drum spiders.

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Commercial Hardware

Custom metal products in the alloy of your choice.

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Electronics & Telecom

Precise sensors and connectors that meet the most exacting tolerances.

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Fluid Power

Precision products with high dimensional and geometric accuracy.

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Food & Beverage

Custom, high-precision products in a variety of materials.

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Lighting

Custom fabricated parts through fully assembled light fixtures.

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Marine

Products and assemblies that meet both structural performance and decorative requirements, including painting.

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Medical & Dental

Medical grade parts that meet tight tolerances and dimensional precision.

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Oil & Gas

High-quality investment cast parts meet stringent testing requirements.

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Power Tools

Strong yet lightweight metal housings and parts.

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Solar

Products helping produce energy more efficiently and effectively.

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Your Global Supply Chain Partner

We provide global manufacturing capabilities with local expertise.

Headquartered in Garner, N.C., we have a global manufacturing presence across the U.S., India, and Mexico, as well as third-party sourcing capabilities in China. Our North Carolina-based warehouse and logistics facility reduces fulfillment rates to as little as 5 days.

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From new product design to product re-engineering, we’re ready to help create a custom solution that works for you.

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