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

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Company News

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Contact Us

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Resources

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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.

Sustainability at Sigma

Our commitment to excellence drives us to build a better, more sustainable future in all aspects of our operations.

Safety at Sigma

Safety is more than just a priority at Sigma Engineered Solutions – it’s a core value.

Sigma Engineered Solutions Earns AS9100D Certification For Second Facility

Sigma Engineered Solutions, a global solutions provider of highly engineered, complex metal components, including machined components and precision metal stampings, earned a second AS9100D certification on February 4, 2023, from TUV SUD, America, this one internationally at its Pune A5 Plant in India.

Obtaining and maintaining an AS9100D certification allows Sigma Engineered Solutions to manufacture, develop, and provide aviation, space, and defense products and services, including parts, components, and assemblies domestically or internationally.  Sigma Engineered Solutions plant in Markesan, WI, USA, has continually received the AS9100D certification since 2017.

“We have supported the aviation, space, and defense sector since our first AS9100D certification in 2017 and have seen tremendous growth and expect this market and product line to continue to expand,” said Vagner Finelli, President & CEO of Sigma Engineered Solutions.  “This certification will aid in the speed of delivery of products to current customers around the world and open the door to new companies looking for best-in-class products from Sigma.”

In addition to being AS9100D certified, Sigma Engineered Solutions is certified to ISO 9001 for quality management systems, ISO 14001 for environmental management systems, and ISO 45001 standards for occupational health and safety.