From TESA Entry Systems to Onity. From electronic locks to electronic solutions. We responded to the increasing demand for multiple solutions from a single source with a global service and support network. Over the past 20 years, we have grown from an electronic lock company to an electronic solutions provider of electronic locks, in-room safes, energy management systems, and closed circuit television. At Onity, we are ‘On’ building lasting client relationships and providing the solutions you need, anywhere in the world..