Our Story

Sentinel Systems has been part of the self-storage industry since 1975. We were one of the first companies to automate facility management and operators across the industry. WinSen, our property management and access control software, ran facilities reliably for over three decades. Yet the industry demanded more and so did we.

Since 2021, Sentinel has gone through a deliberate transformation: new leadership, a rebuilt development team, and a renewed sense of direction. The result: Sentinel Anyware, a fully cloud-based platform that brings Property Management and Access Control together in one modern system, accessible from any device, anywhere. It runs on the same core logic operators trusted in WinSen, built for the way facilities run today. Pair it with our Defender keypad line, reliable, intelligent hardware that keeps your site secure around the clock, and you get an all-in-one system working for your facility day and night. We’ve also expanded into building custom, self-storage-specific Websites, giving operators a professional, tech-friendly front door that makes it easy for new tenants to find a facility, sign up, and get moving in. Software, Security Hardware, and Websites, working together.

Sentinel holds its value because of the people behind it too: Unlimited Support from our team in Golden, Colorado. Never a call center. Real people who care, know the product, and pick up when you call. Independent operators and small multi-site owners competing against much bigger corporations deserve a technology partner that's genuinely in their corner. We're not interested in being the biggest name in the room. We're interested in offering reliable service and real human connection every time you call.

Sentinel brings real value to your facility with an all-in-one security system, seamlessly integrating hardware, software, and your website to help you manage smarter. We know the owners, the managers, the people who run this industry day-to-day, and we build for them!