Sentric unites Castell, Kirk, Salvo, STI & Zonegreen

Leading safety solutions for over 100 years. 

At the Sentric Safety Group, we have united the world’s leading safety solutions brands Castell, Kirk, STI, Salvo, and Zonegreen, to provide the long-term protection of people, productivity, and business reputation, for businesses that operate in harsh and safety-critical environments.

We service clients globally with the very best safety solutions on the market, offering trapped key interlocking safety solutions in several sectors, as well as offering tailored safety solutions in logistics and rail.

We combine our ethos of making no compromise on safety with our premium in-house capabilities, to develop and tailor products and solutions that are built to last and can meet our customers’ unique challenges.

At Sentric, we believe that the challenges we face today are best solved through the right partnerships – sharing knowledge, expertise, and experience to deliver the best solutions to changes in our customers’ needs

That’s why we have joined forces.

By bringing together the best of the best, we’re developing exceptional products and services that offer long-term protection of people, productivity, and business reputation. We are also proud to be part of Halma plc since 1962, a global FTSE 50 group of life-saving technology companies.

Our family of brands: Highly respected. No compromise on safety. Made to last.


Sectors &

The sectors of industry we service and our trusted safety solutions.

News &

Our latest news stories about our solutions, people and service offerings.


Looking for assistance? Get in touch for customer support, as and when you need it.


A dedicated team ready to assist you

You can be assured that behind every product and safety solution we offer, is a team of people who are committed to safeguarding your business, your people, and your reputation.

Our Sectors

We offer a complete range of safety solutions, tailored to suit your business needs.

We provide interlocking safety products to mitigate risks including unauthorised access, unsafe operating practices, electrical risks, machine risks, and more. We also provide loading bay and train maintenance safety solutions.

Explore our energy, industry, logistics and rail pages to find out how we can help you. We guarantee that when you partner with us, you will experience exceptional service and see the long-term benefit of our effective solutions for years to come.


Why do Industry Leaders
choose Sentric?

Our work speaks for itself.
Let industry leaders give you an idea of why they continue to choose the Sentric Safety Group.

Our first experience with the Sentric Safety Group was very good! The system they installed is unique to our needs and protects the entire area without any unnecessary complications. Simple, but very efficient. Ideal for our new wind turbine platform. Thank you, Sentric Safety Group!

Christoph Babbe Eno Energy

My experience with STI, part of the Sentric Safety Group, was a positive one. They are very responsive, and they have good communication skills – they were always willing to collaborate. The quality of the product is also very good, and we believe this brings not only safety, but value, to our company.

SCM & Sourcing Coordinator leading switchgear OEM

Without a doubt, I can recommend the Sentric Safety Group. From the get-go, I felt that my challenges were met with efficiency and transparency. The value of the work and products speaks for itself, and I now have peace of mind – both my people and my equipment are safe and well looked after.

Maintenance Manager Leading UK waste management service provider

We have been so impressed by the work done by the Sentric Safety Group. We had a complex issue, and needed tailored safety solutions across a number of locations. Efficiently, and entirely professionally, they installed the relevant safety solutions, and now we can rest easy knowing that accidents are entirely mitigated.

Head of Warehouse Operations US logistics and distribution company

News & Insights


Achieve success with our safety solutions today. Chat with our team to learn more.

Call center employees working in a customer support environment