Key results
The company
Taisei Corporation
taisei.co.jpGeneral contractor for large-scale building and infrastructure projects.
Result highlights
- ~260 hours saved per employee annually
- 5.5+ hours/week saved per employee
The story
One of Japan’s leading construction firms, founded in 1917, delivers large-scale infrastructure projects domestically and globally.
Critical business information was scattered across isolated platforms like Microsoft 365 and Box, while employee sentiment toward AI varied from excitement to anxiety. This fragmentation and cultural resistance threatened to stall adoption and limit the technology's value to simple productivity tasks rather than true skill development.
The HR organization led a "Middle Out" rollout strategy that combined executive direction with front-line hackathons and communities of practice. They deployed ChatGPT Enterprise with custom integrations to Microsoft 365 and Box, allowing staff to query scattered documentation safely through a single interface. Governance protocols focused on education and explanatory access controls rather than restrictive policies to encourage experimentation.
Scope & timeline
- 3,300 custom GPTs created internally
- 99% user retention intent
- 90% weekly active usage rate
Quotes
“Technology eventually becomes available to everyone. That is why we believed our real advantage would come from the people who can use it well, and from the culture that supports them.”