Kirk Key Interlock Company LLC Employee Directory
Appliances, Electrical, and Electronics ManufacturingOhio, United States51-200 Employees
Kirk Key Interlock Company LLC is a mid-sized American manufacturer that designs and produces interlock-based safety systems used to isolate energy and regulate access to hazardous areas. Based in Canton, Ohio, the company traces its history to 1932 and ships a substantial volume of parts, more than 70,000 safety components each year. Its offerings are configured to meet each customer's specific requirements, aiming to protect workers while supporting orderly, efficient operations. Kirk Key operates within the Sentric Safety Group, part of the Halma corporate family, alongside sister businesses Kirk in the US, STI in France, and Castell in the UK. In 2023, the group expanded its portfolio with the acquisition of Zonegreen Limited, signaling ongoing consolidation in the safety solutions market for harsh and safety-critical environments.