The global leading group for interlock safety systems

We work to ensure everyone,
everywhere is safe at work

The global leading group for interlock safety systems

We work to ensure everyone,
everywhere is safe at work

The SPS Group

Everyone has the right to be safe at work

The SPS Group consists of three market-leading businesses, KIRK, Castell, and STI, and is still growing. Their innovative interlock systems reduce risk and lead best practice procedures, which ultimately saves lives. Based in the USA, UK, and France respectively, these global companies work to keep people in the Energy, Industrial, and Transport sectors safe.

With safety as its guiding light, the SPS Group bands these like-minded businesses together to form an international network that is, and will continue to be, at the forefront of safety.

More than
5000
customers

More than
220
employees


5
locations


110
countries

KIRK®

Headquartered in North Canton, Ohio, USA, KIRK® provide systems and components that remove human error from industrial processes, helping customers better control safety at work.

KIRK® manufactures more than 70,000 safety components each year for use in a wide range of industries, guaranteeing a sequential pattern of safe operations for isolating energy and safely accessing hazardous areas. KIRK® safety products are designed and configured to each user’s requirements, providing protection from each application and peace of mind for our customers.

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Castell

Established in 1922, Castell offers unrivalled experience in trapped key interlocking. Headquartered in London, U.K., Castell offer distributors worldwide, providing safety systems for industries of all sectors.

Castell’s interlocking systems are designed to be robust, durable and are proven in all types of operating environments that meet the demands of the harsh locations our customers operate in. Above all, they are designed to protect personnel and assets where the risk of injury and damage are high.

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STI

Headquartered in Paris, France and serving a worldwide audience, STI has been producing safety devices since 1894. Their products include locks and switches for control circuits, switchgear and access points.

STI manufactures safety interlocks for industrial applications. Its products help companies to enforce safe operating procedures by ensuring operators follow a strictly defined sequence of steps when gaining access to a dangerous area. STI’s products include locks and switches for control circuits, switchgear and access points. The company also safeguards valves and warehouse loading bays.

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Sectors we work in

Energy

SPS Group power the Energy industry with the safety systems they need to protect employees and equipment enabling business to stay compliant with stringent regulations.

Our safety solutions control operational efficiency and effectiveness, enforcing operating procedures to be followed across all their equipment, plants, power stations and control centres.

Industry

SPS Group helps Industrial facilities to remove human error and control risk across a wide range of processes.

The establishment and maintenance of a sequential safety process using our interlock systems, tightly controls risk and guards against entry into hazardous areas.

Transport

We’re driving safer loading and unloading practices in the Transport sector worldwide.

By reducing the critical hazard arising from loading and unloading vehicles at the loading dock, protecting people from palletizers, conveyors and packaging equipment, SPS creates a safer, more secure workplace.

Sectors we work in