Aon vs Marsh:Which is more popular by branded search in New Zealand?
In August 2026, Aon had more branded searches than Marsh among insurance brokers in New Zealand. Aon was estimated to have 2.4K branded searches compared to Marsh’s 620, and held a 12.3% Share of Search versus Marsh’s 3.2%.
Follow Aon vs Marsh and get free monthly updates on what changed
By continuing you'll get index updates and occasional product news from Brandwave. Unsubscribe any time. Privacy
Which is more popular in search, Aon or Marsh?
Compare the insurance brokers New Zealand businesses and households insure through. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.
Share of Search by month for Aon, Marsh. The figures are in the table below the chart.
View monthly share of search table
| Month | Gallagher Insurance | Aon | Rothbury | Marsh | Crombie Lockwood | NZbrokers |
|---|---|---|---|---|---|---|
| Oct 2025 | 75% | 9.8% | 8.7% | 2.2% | 3.7% | 0.78% |
| Nov 2025 | 73% | 11.1% | 8.2% | 2.8% | 4% | 0.87% |
| Dec 2025 | 73.8% | 10.8% | 8.7% | 2.7% | 3.7% | 0.33% |
| Jan 2026 | 72.4% | 12.5% | 8.4% | 2.8% | 3.6% | 0.37% |
| Feb 2026 | 73.3% | 11.8% | 8.3% | 2.7% | 3.5% | 0.36% |
| Mar 2026 | 70.7% | 12.7% | 9.3% | 3.3% | 3.6% | 0.34% |
| Apr 2026 | 69.7% | 12.8% | 9.8% | 3.1% | 4.2% | 0.43% |
| May 2026 | 73.9% | 10.6% | 8.4% | 3.5% | 3.2% | 0.37% |
| Jun 2026 | 73.5% | 10.9% | 8.3% | 3.8% | 3.1% | 0.36% |
| Jul 2026 | 73.6% | 11.5% | 8.3% | 3.3% | 3.1% | 0.26% |
| Aug 2026 | 73.2% | 12.3% | 8.2% | 3.2% | 2.7% | 0.36% |
| Sep 2026 | — | — | — | — | — | — |
How has the Aon and Marsh comparison changed over the last 12 months?
3 findings
- Aon was ahead of Marsh in every measured month of the 11 months ending August 2026.
- Across the 11 months ending August 2026, Aon’s estimated Share of Search among insurance brokers in New Zealand moved from 9.8% to 12.3%, and its estimated monthly branded searches moved from 2.1K to 2.4K.
- Across the 11 months ending August 2026, Marsh’s estimated Share of Search among insurance brokers in New Zealand moved from 2.2% to 3.2%, and its estimated monthly branded searches moved from 470 to 620.
How did search popularity change for New Zealand insurance brokers in August 2026?
2 changes
In August 2026, Aon gained estimated Share of Search among insurance brokers in New Zealand, from 11.5% to 12.3%.
Estimated monthly branded searches for Marsh in New Zealand rose 31.9% over 11 measured months, from 470 to 620 in August 2026.
How each brand is measured
Brandwave collects information about searches that people make online using Aon’s and Marsh’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Put your own brand in this comparison
Brandwave tracks your branded demand next to the rival you actually watch, with your campaigns, spend and outcomes on the same timeline.