Founded in 1991, Sigma Wireless Communications is a trusted leader in mission-critical communications solutions, proudly headquartered in Dublin with an additional office in Cork. For over three decades, we have supported essential services and enterprise operations across Ireland and beyond—designing, delivering, and maintaining communication systems that meet the highest standards of safety, resilience, and reliability.

Today, we are part of something even bigger.

In 2025, Sigma Wireless joined forces with Day Wireless Systems (DWS)—a leading US-based critical communications provider with over 55 years of innovation and service excellence. This strategic merger combines our local knowledge and European expertise with DWS’s deep resources and global reach, enabling us to deliver even more powerful, scalable, and future-ready solutions to our clients across Ireland, the UK, and Europe.

Operating now as Sigma Wireless Communications – a Day Wireless Systems company, together, we are united by a shared commitment: providing intelligent, dependable communications that serve public safety, transportation, defence, utilities, aviation, healthcare, maritime and enterprise sectors.

We operate to the Highest International Standards, ISO9001, ISO14001 and ISO27001.