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

See our company announcements and press releases.

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.

About Us

At Sigma, our vision is to be your partner of choice and a company you believe is great to do business with. We are committed to being a company that you trust more than any other to continually improve and innovate high-quality castings and precision metal stamping products that meet your needs.

Headquartered in Garner, N.C., Sigma Engineered Solutions has a global manufacturing footprint that includes 13 on-shore, near-shore, and off-shore facilities, as well as sourcing capabilities in China. Our North Carolina-based warehouse and logistics facility reduces fulfillment rates to as little as 5 days. Our vertical integration provides the lowest total cost of ownership for our customers by combining the competitiveness of global manufacturing with the responsiveness and service of a U.S.-based company.

Sigma Engineered Solutions consists of two divisions: Sigma Castings and Sigma Connectivity.

  • Sigma Castings has significant expertise across various forms of castings and a wide array of metals, and our products include an extensive line of electrical fittings and hardware for the industrial, commercial, and residential construction industry. Our casting capabilities are supported by state-of-the-art in-house tooling and special purpose machine design and manufacturing, which help reduce lead times and costs.
  • Sigma Connectivity specializes in high volume precision metal stamping, with expertise in working with very thin gauge metals under extremely tight tolerances to create precision components used in electronic connectors.

Great to do business with

We understand what it takes to be a company that is great to do business with – a company that you trust day in and day out to deliver high quality, precision parts that are on-spec and on-time. When you work with Sigma Engineered Solutions, here is what you can expect from us:

Continuous Improvement
At Sigma, we never stop improving our products and services to make them even better for our customers.
We Solve Problems
We work with our customers to create custom parts, and we relentlessly pursue purposeful innovation to solve our customers’ unique problems.
We believe that success comes from continually prioritizing our customers’ needs and creating efficient processes to meet or exceed them.
We believe that every interaction should be a rewarding experience, so we are committed to doing the right thing and treating customers’ with respect and honesty.
Our ability to be the best starts with knowing our customers and collaborating with them, so that their needs become our needs.
Best-in-Class Quality
Our quality starts with precision engineering, machining, and casting. Then we empower our employees to be the best because their pride and dedication shows in every product we make.

Our History

Established in 1982, Sigma Engineered Solutions has grown from one plant in India to 13 plants across the globe. Over the years, Sigma has evolved from a low-cost supplier of low voltage electrical products to a global solutions provider of highly engineered, complex metal components, including machined components and precision metal stampings.

# 1
Position in the U.S. electrical market
16400 +
Unique SKUs
5000 +
Global employees
Global manufacturing facilities
500 +
Highly skilled engineers

Meet our leadership team

Sigma Engineered Solutions has a world-class leadership team with proven success in producing the highest quality products and being a leading technology-enabled, integrated supply chain partner.

I’m extremely proud to have a well-rounded, highly experienced management team with local expertise driving the growth of this company.

– Brad Ward (President & CEO)

Sigma Engineered Solutions takes pride in maintaining a reputation for conducting our business with the highest integrity.

Everyone at Sigma is held to the same high standards: our employees, officers, board of directors, contractors, and business partners. Our code of conduct lays down the framework and defines fundamental guiding principles of equality, fairness, ethics, freedom, and dignity of all stakeholders across the Company, and they emanate to all activities, policies, systems, and processes. These policies are applicable on a global level across the organization.

Global Code of Conduct