Case Study: Daiwa House Industry Co., Ltd. achieves seamless global connectivity for 300 offices with NTT Communications' Arcstar Universal One

Seamlessly Connecting 300 Offices Worldwide for Global Business Expansion

Daiwa House Industry Co., Ltd., a leading prefab housing and property developer expanding into rental, commercial and international markets, needed a reliable global IT backbone to support centralized SAP systems and rising traffic from cloud use, CAD and teleconferencing. Rapidly growing image, video and voice data caused latency that even affected mission-critical accounting processes, so the company required a secure, flexible network to connect its worldwide offices and enable faster global rollout.

Daiwa House selected NTT Communications’ Arcstar Universal One and Arcstar Global IP‑VPN to link 300 offices (plus two offshore sites), issue 5,000 mobile cards, and deploy integrated mobile and Wi‑Fi services with segmented routes for core, data and voice/video. The result: doubled available bandwidth at no extra cost, fewer delays even at peak times, faster and simpler establishment of overseas offices, improved business continuity and reduced maintenance and operational burden.

Daiwa House Industry Co., Ltd.

Kyoji Kato

Executive Officer and General Manager, Information System Division