Terilogy Holdings Corporation, established in November 2022 and headquartered in Tokyo's Hulic Kudan Building, serves as the holding company overseeing group entities that deliver cybersecurity solutions, information and communications technology services, and digital transformation technologies primarily to corporations in Japan. Its core offerings encompass IP network-related products including routers, switches, WLAN equipment, DNS/DHCP devices; network security solutions such as firewalls, intrusion detection/prevention systems, information leakage countermeasures, security authentication systems, single-use password systems; monitoring and support tools like packet capture products, network application performance monitors; proprietary software including EzAvater robotic process automation tool and CloudTriage cloud-based application monitoring; and additional services featuring managed VPN, web conferencing, real-time video interpreting, high-speed mobile data, rental servers, network design/construction, system integration, maintenance, and consulting for manufacturers and telecommunications carriers. Through subsidiaries such as Terilogy Co., Ltd. for hardware/software imports, Constella Security Japan Inc. for threat intelligence and hunting, Terilogy Serviceware Corporation for network/solution development, and overseas ventures like VNCS Global in Vietnam for cybersecurity services, the group operates 368 consolidated employees as of May 2025 with a focus on importing global technologies and in-house innovations. Recent developments include the 2022 corporate reorganization transitioning from Terilogy Co., Ltd. to the current holdings structure listed on the Tokyo Stock Exchange Standard Market under ticker 5133; ongoing distribution partnerships with international firms like Rapid7 (2023), SecurityGate.io (2022), and earlier entities such as Nozomi Networks and Radware; and expansion via subsidiaries including the 2020 establishment of VNCS Global Solution Technology in Hanoi and 2022 formation of Peasoft.vn for system software in Vietnam.