Sigma Four is a proud US Manufacturer
A Local Company with a Global Reach
We at Sigma Four strive to achieve excellence and on-time delivery in all our product offerings. Learn More our services
Sigma Four Is A Minority Owned Company
Providing QUALITY
Since 1984
We at Sigma Four strive to achieve excellence and on-time delivery in all our product offerings. Learn More our services
Join our team – We are looking for talented & driven people to come work with us.

Sigma4Inc

Sigma Four is a full- service contract manufacturer with the expertise and experience needed to support you from design to production.

Trusted US Manufacturer with a passion for Quality

DELIVERING INNOVATION

Sustainability Goals

We are focused on building a long-term, sustainable business.