Simplesense is a defense-focused technology company that builds, authorizes, and operates cyber-physical infrastructure for U.S. military installations. The company specializes in applying commercial DevSecOps best practices to Operational Technology (OT) and Control System (CS) cybersecurity environments. Simplesense designs and deploys cloud-connected OT systems using reference architectures including MOSAICS (a control system cybersecurity defense reference architecture) and the DoD Zero Trust reference architecture. The company is CMMC 2.0 Level 2 and NIST 800-171 compliant, reflecting its focus on regulated defense environments. Their work spans the full lifecycle of cyber-physical infrastructure: architecting systems, obtaining Authorities to Operate (ATOs), and managing long-term operations. A notable deployment is at Tyndall Air Force Base, where Simplesense holds prime contracts for the Installation Resilience Operations Command and Control (IROC) project and a Security System Modernization initiative. The IROC deployment involved securing 100+ buildings using the first cloud-connected OT system with an ongoing ATO. Simplesense has been awarded multiple defense contracts, including a Production OTA with the Air Force Installation Mission Support Center (AFIMSC), a prototype contract with the U.S. Army Corps of Engineers ERDC, and several SBIR Phase I and II awards from Air Force installations including Wright-Patterson AFB and Nellis AFB. The company is also one of the first ABMS awardees. Their customer base is exclusively within the U.S. Department of Defense ecosystem, with a focus on installation resilience, intrusion detection integration, and command-and-control infrastructure.