Arthur J. Gallagher Posts 27.7% Revenue Growth Combining Acquisitions and 5% Organic Growth
Arthur J. Gallagher & Co. (AJG) reported first-quarter 2026 revenue growth of 27.7% year-over-year, driven by bolt-on acquisitions and 5% organic growth. The stock trades at a 16.36x forward PE multiple, below a $306 fair value estimate.

Arthur J. Gallagher & Co. reported first-quarter 2026 revenue growth of 27.7% year-over-year, combining bolt-on acquisitions with 5% organic growth in the insurance brokerage segment. The company disclosed strong earnings-per-share outperformance alongside the top-line expansion.
The brokerage executed its acquisition strategy in a fragmented sector where consolidation drives scale and margin opportunity. Management has repeatedly deployed capital into smaller brokerages, integrating them into existing regional and specialty platforms. The 5% organic figure reflects underlying client retention and pricing momentum independent of M&A contribution.
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