Day Wireless Systems Ltd – Sigma Wireless

Company Profile

Sigma Wireless was formed in 1991 and are based in Dublin. In 2025, Sigma Wireless joined forces with Day Wireless Systems – a leading US based critical communications provider.

We specialize in providing resilient, scalable wireless solutions for Data Centers and Critical Infrastructure on projects worldwide.

Our expertise includes:
• Designing, deploying, and managing wireless and two-way radio systems
• Private 4G and 5G cellular networks enabling secure, low-latency communications for smart operations, remote management, and autonomous systems.
• Active and Passive Distributed antenna systems (DAS) and radio frequency (RF) deployments
• Indoor/outdoor coverage and integrated systems for Tier III+ facilities and edge deployments

Our solutions are tailored to ensure always-on, secure communication networks, making them a key partner for modern data center operations.