Sigma Four Inc.,

Appliances, Electrical, and Electronics ManufacturingTexas, United States11-50 Employees

Sigma Four is a ISO 9002 compliant company, based in Plano, Tx, since 1984. Our specialization includes contract manufacturing of custom cable assemblies and electrical harnesses, power supplies, medical products and services, value added and kitting services, development of prototype systems. We take pride in our focus on quality and our dedication to meeting our customers’ unique requirements. We will work with you to meet your requirements from drawings, prints, sample assemblies, schematics, verbal instructios. We are a local company who can help you meet your global needs. Our model allows us to work with local and global manufacturers.

We at Sigma Four strive to achieve excellence and on-time delivery in all our product offerings.

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