Discover why Sofis stands out with innovative solutions and unmatched expertise.

At Sofis, we bring unmatched expertise providing solutions that address the most complex customer challenges worldwide. Our in-depth knowledge of diverse applications, combined with a commitment to understanding the unique needs of every customer, ensures reliable, efficient, and customized solutions for your operations.

With over 450,000 valve interlocks installed worldwide, Sofis stands as a trusted leader in the industry. Our renowned brands, including Smith interlocks and Netherlocks interlocks, have set the benchmark for safety, quality, and reliability.

Our dedicated global service team, combined with a robust global sales and project management team, ensures expert support wherever you operate.

Benefit from local expertise through our 5 regional offices and an extensive and professional partner network in 50 countries, delivering tailored support close to you.

Benefit from local expertise through our 5 regional offices and an extensive and professional partner network in 50 countries, delivering tailored support close to you.

At Sofis, our specialist team brings 40 years of knowledge and loyalty, enabling us to deliver superior solutions that address your unique needs on many applications.

With a large production capacity and a highly skilled, qualified team, safety is at the heart of everything we do. Trust Sofis, an ISO 9001-certified company, to provide dependable solutions with safety as our core value.

Our innovative digital portfolio supports your journey towards digital integration, streamlining your operations for the future.

As a proud member of Halma PLC (FTSE 100 listed), Sofis offers a low-risk, secure business relationship backed by financial strength and compliance with supplier policies.

We are committed to reducing emissions and actively supporting a safer, cleaner industry. Being ISO 14001 certified, sustainability is a driving force behind our operations.