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AON compared with MRSH: revenue, margins and what each company keeps, and the suppliers and customers both name
AON
Aon plc
Change
Mkt cap
Revenue
Revenue
MRSH
Marsh & McLennan Companies, Inc.
Change
Mkt cap
Revenue
Revenue
vs
Compare
AON
Aon plc
vs
MRSH
Marsh & McLennan Companies, Inc.
Price
Mkt cap
Revenue
Revenue
Change
Change
Revenue flow
Supply chain
Price
Co-movers
Event sensitivity
Earnings history
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Revenue flow
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AON
Aon plc
Change
333.63
▲
+1.05%
· post 344.27
· delayed
Mkt cap
$70.3B
Revenue
$3.9B
Q3 FY26
Revenue
$16.4B
FY25
MRSH
Marsh & McLennan Companies, Inc.
Change
210.45
▲
+3.35%
· post 210.44
· delayed
After hours
Nov 4 '26
delayed
Mkt cap
$96.8B
Revenue
$6.6B
Q3 FY26
Revenue
$26.1B
FY25
vs
Compare
After hours
Nov 4 '26
delayed
AON
Aon plc
vs
MRSH
Marsh & McLennan Companies, Inc.
333.63
▲
+1.05%
post 344.27
delayed
Price
210.45
▲
+3.35%
post 210.44
delayed
$70.3B
Mkt cap
$96.8B
Q3 FY26
$3.9B
Revenue
$6.6B
Q3 FY26
FY25
$16.4B
Revenue
$26.1B
FY25
Change
Change
AON
333.63
▲
+1.05%
vs
MRSH
210.45
▲
+3.35%
After hours
Nov 4 '26
delayed
Revenue flow
Supply chain
Price
Co-movers
Event sensitivity
Earnings history
Price
Supply-chain overlap
Revenue flow
AON: latest quarter not drawable. MRSH: latest quarter not drawable.
Method
›
Supply-chain overlap
direct ties · both sides
Sources
›
direct ties · both sides
Only AON
6
RNR
Renaissancere
customer
PRCH
Porch
supplier
GLRE
Greenlight Capital RE
customer
AXS
Axis Capital
supplier
2 more · AON chain
›
Shared
0
No disclosed counterparties: MRSH.
Only MRSH
0
None
Role chip = supplier or customer
Source: SEC EDGAR
Price
rebased to 0%
1D
1W
1M
3M
YTD
1Y
5Y
1D
1W
1M
3M
YTD
1Y
5Y
AON, solid
MRSH, dashed