Arthur J. Gallagher's two TacticalVC cases both document the same serial acquisition engine — from slightly different measurement periods — because the engine is consistent enough to warrant double documentation. Disciplined tuck-in acquisitions in specialty and mid-market insurance brokerage grew revenue from $7.2B to $11.4B while net earnings expanded 52%. For operators studying acquisition-led growth in insurance distribution, Gallagher provides the most granular available documentation of what 'serial M&A discipline' looks like in practice at scale.
Gallagher grew revenue 65% to $11.4B by closing ~33 acquisitions per year alongside 5–9% organic growth.
Revenue Scaled to $11.4B Through Disciplined Acquisition Roll-up
Arthur J. Gallagher grew net earnings 52% and revenue 14.8% to $11.4B through serial M&A.
Arthur J. Gallagher: Serial Acquisition Engine Driving Scale and Margin Expansion
Arthur J. Gallagher grew revenue 59% to $11.4B over four years through disciplined tuck-in M&A execution.
Serial Acquisition Engine Scaling Brokerage Revenue Through Disciplined Tuck-In M&A