ComDesign

ComDesign (株式会社コムデザイン) is a Japanese cloud CTI (Computer Telephony Integration) platform provider, founded in January 2000 and headquartered in Chiyoda, Tokyo. The company develops and operates CT-e1/SaaS, a cloud-based telephony and contact center platform that serves organizations ranging from small-scale phone offices to large contact centers with 100+ seats, achieving over 32,000 seats and 1,825 tenants with a customer retention rate exceeding 90% as of mid-2025. Beyond its flagship SaaS product, ComDesign offers CRM integration, ACD, IVR, and advanced contact center capabilities, as well as custom CTI solution development and resale. The company holds ISO/IEC 27001 certification and ISMS cloud security accreditation, and counts major Japanese corporations including Rakuten Mobile, KADOKAWA, Toyota Mobility Tokyo, and Oisix ra daichi among its clients.