Dentsu Group

The vast impairment of the overseas business (Dentsu International) and the turn away from M&A (2025)

Key decision·2025· Dentsu Group — the full company history →

Growth that was bought, and the cost of unwinding it

The heart of this decision lies in the fact that growth bought through acquisition turned, as it stood, into a future burden in the form of goodwill. Taking the 2013 Aegis acquisition as its opening, Dentsu expanded abroad and, deal upon deal, became an advertising group of global scale. But if the earning power of the businesses obtained there falls short of what was assumed, the goodwill that has piled up surfaces all at once as impairment. Under a dual structure of resilient domestic advertising and structurally weak overseas digital, Dentsu Group set a record loss for two consecutive years. The scale the acquisitions delivered was also, at the same time, the assumption of impairment risk.

The return from an M&A-heavy path to organic growth that President Igarashi set out in the medium-term plan was coherent as a reconsideration of the expansion strategy. Yet the impairments ran for two years, the attempted sale of overseas businesses failed to gather enough buyers, and it went as far as a change in the management structure. The cost of liquidating bought growth is heavier than the original estimate. How to lighten the goodwill accumulated overseas, and how far the struggling digital business can be rebuilt — the task handed to the new Sano administration shows that growth achieved through acquisition is not easily wound back.

Revenue and net margin, FY2020–FY2025

Revenue in ¥ bn (bars) and net margin in % (line), for the years around the decision. Shaded columns are FY2025 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 Dentsu Group


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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