Research contextSee what supports this page, how current it is, and where comparable or historical context is available.
- Research date
- Sep 22, 2026Use the dated article and cited sources for the definition, examples, and stated limitations.
- Operating-model context
- 12 connected conceptsPart of the reviewed Insurance Broker Operating Model; issuer definitions remain distinct where disclosed.
- Company examples
- 4 reviewed companiesRelationships reflect supported examples, not a normalized cross-company KPI ranking.
Insurance broker organic revenue growth measures growth in a comparable existing-business revenue base after issuer-defined exclusions.
Aon excludes foreign exchange, fiduciary investment income, acquisitions and divestitures, and certain other items under its methodology. Gallagher's brokerage definition starts with base commissions, fees, supplemental revenue, and contingent revenue, then removes acquisition and divestiture effects and other specified items. Brown & Brown uses core commissions and fees and excludes acquisition, divestiture, and currency effects.
Why it matters
Organic growth helps separate the performance of the existing brokerage franchise from acquisition-heavy reported growth.
Investor caution
There is no single industry-standard formula.
Marsh calls its comparable measure underlying revenue growth rather than organic revenue growth, and peer adjustments are not identical.
Sources:
Organic revenue growth is an issuer-defined comparable-growth measure, not GAAP revenue growth.
Part of the Insurance Broker Operating Model
Connect base commissions and fees, organic growth drivers, carrier incentive compensation, fiduciary balances and income, acquisition contribution, and adjusted margins to understand insurance-broker economics.
How the model fits together
- Core brokerage growth bridge: Base commissions and fees form the core revenue pool. New and renewal business, exposure-unit changes, and premium-rate changes can drive comparable growth, while organic revenue growth applies issuer-specific exclusions to isolate the existing-business trend. These components are analytically related but are not a standardized industry reconciliation.
- Revenue mix and carrier compensation: Fee revenue mix separates negotiated fees from traditional commission economics, while supplemental and contingent commissions capture additional carrier compensation with different contractual triggers and variability. The categories should remain distinct rather than being treated as one standardized incentive-revenue measure.
- Acquisitions, fiduciary economics, and margin: Acquisition revenue contribution separates purchased growth from the existing franchise. Fiduciary cash can generate investment income where permitted, creating rate-sensitive revenue that many organic-growth frameworks exclude. Adjusted operating margin then shows issuer-defined profitability after specified adjustments, so peer definitions remain non-comparable without reconciliation.
See It in Company Research
These companies are examples of how the concept is reported or discussed in public filings. Definitions can differ by issuer; these links open company research rather than a normalized metric comparison.
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