Sera4 is a Canadian technology company who holds core patents for keyless physical access. With its state-of-art cloud technology, Sera4 brings increased security and efficiency to access management of Critical Infrastructure. Sera4’s head office is based in Waterloo, Ontario, home to a strong technology sector with hundreds of high-tech firms.

A special shaped object has granted access rights to the holder for centuries. Metal keys are still used everywhere. They do their job, but they are limited. They don’t know who carries them. They have to be physically handed to someone to pass on that access right. Or, collected to revoke it. They are often misplaced or stolen.It’s time to move forward. We all carry smartphones. We trust computer networks to safely represent and move our money. We no longer need to carry a special object like a key, a fob or a card to get access to the most secure places.

At Sera4, we apply patented technology like that which safely runs digital payment systems to eliminate the need for keys, fobs, and access cards. We focus on critical infrastructure, where it’s not practical to get unique keys to whatever qualified worker happens to be close to a site. We make it easy to manage and report on who is on site.