“We don’t see the real costs of AI.”
That’s Jean-Marc Frangos, ex-BT in Silicon Valley, now running AI at Shimizu, one of Japan’s “Big 5” contractors, founded in 1804.
We sat down with him to unpack how a 220 year old builder actually rolls out AI across a 20,000 person workforce.
The playbook, not the hype:
✅ Start with your data, not the model
✅ 5,000+ staff on one AI platform in ~7 months
✅ When the subsidies end, undisciplined teams get hit “like a ton of bricks”
🎧 Full episode out now.
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00:00 Intro
00:33 Inside Japanese construction and innovation
05:58 What is a “genecon”? Shimizu and Japan’s super contractors
07:49 Sponsors
10:58 From telecom to construction: Jean-Marc’s career path
17:11 Japan vs Silicon Valley: how innovation actually happens
22:49 How Japanese construction trains its workforce
27:21 How Shimizu adopts AI and new technology
33:26 Why AI adoption in construction is accelerating
36:11 Specialized AI tools vs general models
38:03 RAG explained: AI data retrieval in construction
41:34 AI model routing to cut costs
43:56 Rolling out AI across a large organization
47:55 AI governance: tracking ROI and real benefits
55:39 The future of construction robotics
59:19 The cultural roots of Japan’s innovation mindset
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