Vertical integration in materials and timber, beginning with First Wood (2014)
Buying the people who send you invoices
Volume housebuilding is a trade in which the seller does not set the price. Local comparables fix the ceiling, and auctions fix what the land costs. What is left is the cost of building, and what Iida Group Holdings has been doing since 2014 is walking, company by company, into the inside of that cost. The firm that mills the timber, the firm that assembles the glass, the firm that makes the kitchens, the firm that makes the doors and flooring — every one of them had, until then, been sending it invoices. It was shopping that replaced negotiating terms with managing them internally.
What the substitution revealed is that the inside of the cost line still contains things you cannot read. The surge in timber prices hit its own procurement directly in 2021, and the Russian forests it obtained the following year were made hard to use by war. The 4.1% operating margin in the year to March 2024 is the figure recorded after taking four materials makers in-house. Vertical integration transfers the economics of a process onto your own ledger; it does not erase the market that process is exposed to. What Iida Group Holdings is now reaching for is neither processing nor raw material, but the selling side that faces the customer directly.
Revenue and net margin, FY2009–FY2019
Revenue in ¥ bn (bars) and net margin in % (line), for the years around the decision. Shaded columns are FY2014 onwards — after it was taken.
Source: securities reports
Read the full dossier in Japanese →
The Japanese edition carries the complete record of this decision — the situation that forced it, the options weighed, what actually followed, and the sources behind every claim.
Other key decisions at Iida Group Holdings
Yen amounts are converted at the average rate of each figure’s own year — not today’s rate; the revenue chart is shown in yen. Exchange rates & sources — the full ¥/US$ table →
Disclaimer
- This page is provided for general information only and is not investment advice, nor a recommendation to buy or sell any security.
- Figures are compiled independently and include our own estimates, approximations and machine-processed data; we make no warranty as to their accuracy or completeness.
- Sources are primarily each company’s securities reports and other public filings, but errors and omissions may remain.
- Any use of this information is at the reader’s own risk. Past performance does not indicate future results.
- Company names, logos and other marks belong to their respective owners.
Data API
Iida Group Holdings’s history, financials, executives and
shareholders are published as static JSON — no key, plain GET.
Full specification →
| Method | Endpoint | Returns |
|---|---|---|
| GET | /api/companies.json | All companies |
| GET | /api/3291/manifest.json | Resource index |
| GET | /api/3291/history.json | History overview |
| GET | /api/3291/timeline.json | Chronology |
| GET | /api/decisions.json | All management decisions (index) |
| GET | /api/3291/decisions.json | Management decisions (index) |
| GET | /api/3291/decisions/{slug}.json | One decision (full dossier) |
| GET | /api/3291/executives.json | Executives |
| GET | /api/3291/shareholders.json | Major shareholders |
| GET | /api/3291/financials.json | Financial statements |
| GET | /api/3291/financials-longterm.json | Long-term results |
| GET | /api/3291/segments.json | Business segments |
| GET | /api/3291/regions.json | Sales by region |
| GET | /api/3291/workforce.json | Workforce |