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.

Sigma Connectivity

High-quality precision metal stamping, specializing in tight tolerance parts with complex geometries.

Sigma Connectivity brings together the expertise of Tooling Dynamics, which the company acquired in December 2019, and our supply chain management capabilities and value-added partner services.

We specialize in high-volume precision metal stamping and Swiss screw machining, and we are experts in working with very thin gauge metals under extremely tight tolerances to create high-precision components used in electronic sensors and connectors.

Our experienced Tool & Die makers can increase your speed-to-market using our state-of-the-art tool room and in-house die build process. We also offer heat treating, assembly, and rapid prototyping, which can create tangible products from your design in as little as 2-4 weeks.

Sigma Connectivity is a long-time ISO 9001 and IATF 16949 registered supplier.

precision metal stamped products on blue background

Your Source for Precision Parts with Complex Geometries

a large metal stamping machine that goes from floor to ceiling in a factory

Precision Metal Stamping

Metal stamping is a process that uses dies and stamping presses to turn thin strips of metal into complex, custom sensors and connectors.

Learn More

machining for swiss screw in action

Swiss Screw Machining

A specialized CNC machine capable of producing extremely small, precise products that are ideal for complex miniature screws, contact pins, and micro-fasteners.

Learn More

Partner Services

Sigma offers a number of services that can help with your Connectivity product needs.

stop watch icon

Rapid Prototyping

pouring hot metal icon

Tools & Dies

Heat Treating


See All Services