Signal Note — PE Market Structure

The Roll-Up Reckoning

How European Below-Threshold Enforcement Is Dismantling the Software Roll-Up Playbook

PE M&A Strategy | European Regulatory Enforcement | Human-Intel-Driven  ·  February 2026

The software roll-up is the defining PE value creation playbook of the last decade: buy fragmented vertical SaaS, consolidate, expand EBITDA margin through pricing power, exit at a premium multiple. European regulators have identified this playbook specifically and are closing three independent enforcement channels on it simultaneously — without coordinating with each other, and without the acquisitions triggering traditional notification thresholds.

Three Enforcement Channels

CMA Call-In Powers. The UK Competition and Markets Authority can now review acquisitions that fall below notification thresholds — including completed deals. The call-in power has no binding time limit. A deal that closed without regulatory review can be investigated after the fact. For software roll-ups built on sub-threshold bolt-ons, every historical acquisition now carries residual CMA exposure.

The Towercast Doctrine. A 2023 European Court of Justice ruling allows national competition authorities to review acquisitions using Article 22 referrals even when EU thresholds aren't triggered. The German Bundeskartellamt, French Autorité de la concurrence, and Netherlands ACM have all invoked this doctrine against technology acquisitions. The doctrine has no geographic threshold and no sector limitation.

FSR/FDI Screening. The EU Foreign Subsidies Regulation and national FDI screening regimes add a third review layer for acquisitions involving non-EU capital — including PE sponsors with U.S. LP bases acquiring European targets. The FSR filing thresholds are low enough to capture most meaningful PE transactions.

The playbook isn't illegal. It's now expensive, slow, and uncertain in ways that compress the multiple on exit — which reprices the playbook at entry.

Who's Exposed

  • PE sponsors with active European software roll-up programs — every bolt-on acquisition now carries tri-channel enforcement exposure
  • Portfolio companies with sub-threshold acquisition histories in UK and Germany — historical deals are not protected from CMA or Bundeskartellamt review
  • LPs modeling European software portfolio exits on pre-2023 timeline assumptions — the regulatory overlay has extended deal timelines by 6–24 months

Who Wins

  • Platform companies that achieved scale before enforcement intensified — they have the pricing power the regulators are trying to prevent new entrants from acquiring
  • U.S.-only roll-up strategies — the enforcement asymmetry between U.S. and European antitrust has increased, making domestic consolidation relatively more attractive
  • Regulatory counsel with European below-threshold enforcement specialization — genuinely scarce expertise
The strongest counter: these enforcement actions are slow and most resolve without forced divestiture. True — but the deal timeline uncertainty is itself the friction cost. A 6–18 month regulatory review that delays exit compresses IRR regardless of outcome.

European Enforcement Exposure Mapping for Software Roll-Ups

SGA maps tri-channel enforcement risk (CMA, Towercast, FSR) against specific acquisition histories and planned bolt-ons. The intelligence question: which acquisitions in the existing portfolio carry residual CMA call-in exposure, and which planned transactions trigger FSR filing requirements before the deal is announced.

satish@sarrattglobal.com

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