Correcting decentralisation: reorganising to stop being a pure contractor (1987)
Between delegation and control, how to keep the strength
The heart of this sequence of decisions was that it went at the mechanism behind the company’s success, rather than applying first aid to a financial crisis. For a firm that had shed family ownership earlier than anyone, devolving authority to sites and subsidiaries was its own substitute for a centre of gravity — a way of drawing self-reliance out of its employees. But the same mechanism that had performed in the boom turned against Taisei in a low-growth, mature market as hoarded land, subsidiaries eating each other’s markets and slow decisions. When strength and weakness grow from one root, how far should management cut? Taisei’s answer was to add central control while keeping the decentralised base — an adjustment that deliberately did not swing the pendulum all the way back.
The slogan of breaking out of pure contracting was harder to realise than to draw on an organisation chart. The idea behind folding design into sales — creating orders rather than receiving them — was clear enough, but turning engineers who draw plans into people who go out and propose to clients takes daily training and a change of mind. That chairman Sako Hajime kept returning to the harm of vertical silos and the barrier between layers was a measure of the difficulty. Rather than chasing scale, in which mix of businesses should a mature market let Taisei use what it actually had — its non-family origins and its delegation? The question Taisei kept asking through the 1970s and 1980s would present itself again, in the same shape, at the bursting of the bubble and again after Lehman.
Revenue and net margin, FY1982–FY1992
Revenue in ¥ bn (bars) and net margin in % (line), for the years around the decision. Shaded columns are FY1987 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 Taisei Corporation
- 1873 Founding Taisei: from Okura Kihachiro’s trading house to the industry’s first “construction” name (1873)
- 1946 The zaibatsu dissolution and the renaming to Taisei — rebuilding as a company owned by its employees (1946)
- 1965 Collegial management as a “great synthesis,” and the move to divisional headquarters (1965)
- 2018 Indicted over the maglev bid-rigging — and denying that it was collusion (2018)
- 2025 Acquiring Toyo Construction, a leading marine contractor, by tender offer (2025)
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 →
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