Buy-and-build

Buy-and-build is an investment strategy in which an investor first acquires a platform company and then enlarges it through several complementary acquisitions. Value comes from additional earnings, from synergies and from the higher valuation multiple that larger units achieve on sale.

The value logic

Buy-and-build works through three channels. The first is simple addition: more companies mean more earnings. The second is synergies – joint purchasing, shared administration, non-overlapping sales territories. The third is the most important and least intuitive: multiple expansion. Small companies trade at lower multiples than large ones. Whoever buys five companies at six times earnings each and sells the combined unit at ten times earnings achieves a gain in value that has nothing to do with operational improvement.

This logic only works, however, if the unit looks like a company at the end and not like a collection of holdings. This is exactly where the finance function has a decisive part.

What the strategy demands of the finance function

A repeatable integration process. Not the integration of one acquisition, but a template: chart of accounts, account mapping, closing calendar, reporting formats, a defined routine for the first sixty days after every closing.

Consolidation that scales. What works in a spreadsheet with two companies breaks with six. The move to a consolidation tool belongs before the third acquisition, not after the sixth.

A common language for key figures. If every company calculates contribution margin differently, the sum of contribution margins is meaningless.

Robust adjustments. Acquisitions generate transaction costs, integration effort and one-off effects. These items must be captured separately and cleanly from the start – at exit every single one is examined, and whatever cannot be evidenced is struck from adjusted earnings.

Where buy-and-build fails

Too fast. Acquisitions every six months without the previous one being integrated. After the fourth, nobody can make a consolidated statement any more.

Synergies only on paper. The savings assumed in the acquisition model need an owner for delivery and a figure in the report, otherwise they remain a calculation.

Disparate systems. Five system landscapes mean five closing logics. Full harmonisation is rarely economic; a single reporting layer on top almost always is.

For sale preparation

A buyer examines a unit grown through acquisitions particularly closely for whether the group is truly integrated. A continuous history, consolidated comparatives over several years and traceable adjustments are the difference between the multiple in the model and the one that is actually paid.

Synonyme:
Buy & build, buy-and-build strategy, platform strategy, add-on strategy
Englischer Begriff:
Buy-and-build
Last updated:
September 2, 2026