An extensive range of robust fittings and weatherproof products.


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

Power Transmission & Distribution

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


Complex sensor housings & fracture-critical products.


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.


Custom housings to fully assembled commercial & industrial light fixtures.


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.


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

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Contact Us

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


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.

SIGMA Engineered Solutions

We are committed to being a partner that you trust to deliver high-quality precision parts that are on-spec and on-time, every time

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 power connection needs.
On-Time, On-Spec Products
Sigma Engineered Solutions is a vertically integrated products and solutions provider, with casting, precision metal stamping, in-house tooling and special purpose machine design and manufacturing capabilities.
Diverse Markets
Since 1982, Sigma Engineered Solutions has been a trusted partner providing precision made products and solutions to global market leaders with diverse connectivity needs.
Superior Service
Sigma regularly delivers industry leading fill rates for our customers. Our supply chain solutions also reduce typical lead times to as little as 5 days, so we can quickly respond to fluctuations in demand and increase the speed to market for your products

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.

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.


Contact Us

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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