Shionogi rolls out Microsoft Copilot to all staff

Shionogi's push sits inside its mid-term management plan, "STS2030 Revision", under which it has been pursuing company-wide productivity gains and shifting resources toward higher-value work. It stood up a dedicated Generative AI グループ as a technology-promotion unit, and then in 2025年秋 a clear top-down order set the target of 100% generative AI usage by all employees. Those two moves are what turned the effort from scattered efficiency projects into a company-wide push on how work gets done.

The decision itself went through a multi-angle comparison, and the company settled on Microsoft Copilot for its smooth integration with the existing Microsoft Office environment. Security and governance were the big clinchers, because data stays inside the company's own tenant. Executive-level understanding — including expectations of a mindset shift beyond cost-effectiveness — appears to have helped the proposal move unusually smoothly, going from a 2026 年 2 月 submission to approval the next month, with the company-wide rollout completed in April 2026.

The stakes now look less about tools than about rules. Since the rollout, usage logs have trended steadily upward, helped by a company-paid model and hands-on workshops, and the change is showing up in how people think rather than only in task speed. The noteworthy part is that even departments with strict regulation, which tend to be cautious about new systems, have begun voluntarily looking at revising their own operating rules. Whether that voluntary rule-rewriting becomes the norm, or stays confined to a few teams, is likely to determine how far AI actually reaches into regulated work at Shionogi.