The Physical Security Interoperability Alliance is a global consortium of over 65 physical security manufacturers and systems integrators focussed on promoting interoperability of IP-enabled security devices across all segments of the security industry. Participating companies include Arecont Vision, ASSA ABLOY, Cisco Systems, GE Security, Genetec, Hikvision, Honeywell, IBM, IQinVision, Kastle, March Networks, Milestone Systems, and NICE Systems.