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

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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.

Company 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 supplier of niche low voltage electrical products to a global solutions provider of highly engineered castings, machined components, and precision metal stampings.

Company Introduces New Sigma Engineered Solutions Name

Sigma Electric changes its name to Sigma Engineered Solutions to reflect the company's global manufacturing capabilities, increased product offerings, and supply chain expertise.

Expanded Capabilities Through Acquisitions & Expansion

The company adds near-shore die casting in Mexico with the acquisition of Microcast Technologies Mexicana, as well as investment casting with the acquisition of Avalon Precision Casting. The company's acquisition of Tooling Dynamics adds precision metal stamping capabilities, expanding the company’s reach into new and existing markets. In India, the company adds an aluminum high-pressure die casting plant for high-end custom products as well as an iron sand casting plant.

man working in factory on machinery

Global Manufacturing Growth

The company embraces Lean Manufacturing and adds 5 castings plants and a Special Purpose Machine tech center in India.

the exterior of a Sigma plant in India

Expansion into Pune, India

The company adds significant castings capacity with the addition of 3 new castings facilities in Pune, India.

the exterior of Sigma's headquarters in North Carolina, USA

Global Roots Take Shape

The company starts operations with 2 casting facilities in Jaipur, India, and establishes its North Carolina headquarters.