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Side-by-side financial comparison of Aon plc (AON) and 3M (MMM). Click either name above to swap in a different company.

3M is the larger business by last-quarter revenue ($6.0B vs $5.0B, roughly 1.2× Aon plc). Aon plc runs the higher net margin — 24.6% vs 10.8%, a 13.8% gap on every dollar of revenue. On growth, Aon plc posted the faster year-over-year revenue change (6.0% vs 1.3%). 3M produced more free cash flow last quarter ($2.0B vs $363.0M). Over the past eight quarters, Aon plc's revenue compounded faster (15.7% CAGR vs -1.8%).

Aon plc is a British-American professional services firm. The company operates two divisions: Risk Capital, which provides brokerage and consulting services for risk management and insurance and reinsurance, and Human Capital, which provides services for health insurance, retirement plans, pension plans, and talent advisory.

The 3M Company is an American multinational conglomerate operating in the fields of industry, worker safety, and consumer goods. Based in the Saint Paul suburb of Maplewood, the company produces over 60,000 products, including adhesives, abrasives, laminates, passive fire protection, personal protective equipment, window films, paint protection film, electrical, electronic connecting, insulating materials, car-care products, electronic circuits, and optical films. Among its best-known consume...

AON vs MMM — Head-to-Head

Bigger by revenue
MMM
MMM
1.2× larger
MMM
$6.0B
$5.0B
AON
Growing faster (revenue YoY)
AON
AON
+4.7% gap
AON
6.0%
1.3%
MMM
Higher net margin
AON
AON
13.8% more per $
AON
24.6%
10.8%
MMM
More free cash flow
MMM
MMM
$1.7B more FCF
MMM
$2.0B
$363.0M
AON
Faster 2-yr revenue CAGR
AON
AON
Annualised
AON
15.7%
-1.8%
MMM

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
AON
AON
MMM
MMM
Revenue
$5.0B
$6.0B
Net Profit
$1.2B
$653.0M
Gross Margin
40.7%
Operating Margin
34.1%
23.2%
Net Margin
24.6%
10.8%
Revenue YoY
6.0%
1.3%
Net Profit YoY
25.6%
-41.5%
EPS (diluted)
$5.63
$1.23

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
AON
AON
MMM
MMM
Q1 26
$5.0B
$6.0B
Q4 25
$4.3B
$6.1B
Q3 25
$4.0B
$6.5B
Q2 25
$4.2B
$6.3B
Q1 25
$4.7B
$6.0B
Q4 24
$4.1B
$6.0B
Q3 24
$3.7B
$6.3B
Q2 24
$3.8B
$6.3B
Net Profit
AON
AON
MMM
MMM
Q1 26
$1.2B
$653.0M
Q4 25
$1.7B
$577.0M
Q3 25
$458.0M
$834.0M
Q2 25
$579.0M
$723.0M
Q1 25
$965.0M
$1.1B
Q4 24
$716.0M
$728.0M
Q3 24
$343.0M
$1.4B
Q2 24
$524.0M
$1.1B
Gross Margin
AON
AON
MMM
MMM
Q1 26
40.7%
Q4 25
33.6%
Q3 25
41.8%
Q2 25
42.5%
Q1 25
41.6%
Q4 24
51.7%
Q3 24
42.1%
Q2 24
42.9%
Operating Margin
AON
AON
MMM
MMM
Q1 26
34.1%
23.2%
Q4 25
28.1%
13.0%
Q3 25
20.4%
22.2%
Q2 25
20.7%
18.0%
Q1 25
30.9%
20.9%
Q4 24
26.3%
12.2%
Q3 24
16.7%
20.9%
Q2 24
17.4%
20.3%
Net Margin
AON
AON
MMM
MMM
Q1 26
24.6%
10.8%
Q4 25
39.4%
9.4%
Q3 25
11.5%
12.8%
Q2 25
13.9%
11.4%
Q1 25
20.4%
18.7%
Q4 24
17.3%
12.1%
Q3 24
9.2%
21.8%
Q2 24
13.9%
18.3%
EPS (diluted)
AON
AON
MMM
MMM
Q1 26
$5.63
$1.23
Q4 25
$7.82
$1.07
Q3 25
$2.11
$1.55
Q2 25
$2.66
$1.34
Q1 25
$4.43
$2.04
Q4 24
$3.11
$1.33
Q3 24
$1.57
$2.48
Q2 24
$2.46
$2.07

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
AON
AON
MMM
MMM
Cash + ST InvestmentsLiquidity on hand
$1.4M
$3.7B
Total DebtLower is stronger
$13.5M
$10.9B
Stockholders' EquityBook value
$10.0M
$3.3B
Total Assets
$51.4M
$35.4B
Debt / EquityLower = less leverage
1.36×
3.29×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AON
AON
MMM
MMM
Q1 26
$1.4M
$3.7B
Q4 25
$2.8B
Q3 25
$1.3B
Q2 25
$1.4B
Q1 25
$1.3B
Q4 24
$1.3B
Q3 24
$1.3B
Q2 24
$1.2B
Total Debt
AON
AON
MMM
MMM
Q1 26
$13.5M
$10.9B
Q4 25
$15.2B
$12.6B
Q3 25
$12.6B
Q2 25
$13.1B
Q1 25
$13.5B
Q4 24
$17.0B
$13.0B
Q3 24
$13.2B
Q2 24
$13.1B
Stockholders' Equity
AON
AON
MMM
MMM
Q1 26
$10.0M
$3.3B
Q4 25
$9.4B
$4.7B
Q3 25
$7.9B
$4.6B
Q2 25
$7.8B
$4.3B
Q1 25
$7.0B
$4.5B
Q4 24
$6.1B
$3.8B
Q3 24
$6.2B
$4.6B
Q2 24
$5.9B
$3.9B
Total Assets
AON
AON
MMM
MMM
Q1 26
$51.4M
$35.4B
Q4 25
$50.8B
$37.7B
Q3 25
$51.6B
$37.6B
Q2 25
$54.0B
$38.0B
Q1 25
$50.3B
$40.0B
Q4 24
$49.0B
$39.9B
Q3 24
$49.9B
$40.9B
Q2 24
$51.5B
$43.4B
Debt / Equity
AON
AON
MMM
MMM
Q1 26
1.36×
3.29×
Q4 25
1.63×
2.68×
Q3 25
2.72×
Q2 25
3.06×
Q1 25
3.02×
Q4 24
2.78×
3.40×
Q3 24
2.84×
Q2 24
3.34×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AON
AON
MMM
MMM
Operating Cash FlowLast quarter
Free Cash FlowOCF − Capex
$363.0M
$2.0B
FCF MarginFCF / Revenue
7.2%
33.6%
Capex IntensityCapex / Revenue
1.3%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$3.5B
$3.7B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AON
AON
MMM
MMM
Q1 26
Q4 25
$1.4B
$1.6B
Q3 25
$1.1B
$1.8B
Q2 25
$796.0M
$-954.0M
Q1 25
$140.0M
$-79.0M
Q4 24
$1.2B
$1.8B
Q3 24
$1.0B
$-1.8B
Q2 24
$513.0M
$1.0B
Free Cash Flow
AON
AON
MMM
MMM
Q1 26
$363.0M
$2.0B
Q4 25
$1.3B
$1.3B
Q3 25
$1.1B
$1.5B
Q2 25
$732.0M
$-1.2B
Q1 25
$84.0M
$-315.0M
Q4 24
$1.1B
$1.5B
Q3 24
$951.0M
$-2.0B
Q2 24
$460.0M
$752.0M
FCF Margin
AON
AON
MMM
MMM
Q1 26
7.2%
33.6%
Q4 25
30.8%
21.8%
Q3 25
27.0%
23.6%
Q2 25
17.6%
-18.3%
Q1 25
1.8%
-5.3%
Q4 24
27.6%
25.4%
Q3 24
25.6%
-32.3%
Q2 24
12.2%
12.0%
Capex Intensity
AON
AON
MMM
MMM
Q1 26
1.3%
Q4 25
1.7%
4.0%
Q3 25
1.7%
3.3%
Q2 25
1.5%
3.3%
Q1 25
1.2%
4.0%
Q4 24
1.3%
4.8%
Q3 24
1.7%
3.9%
Q2 24
1.4%
4.3%
Cash Conversion
AON
AON
MMM
MMM
Q1 26
Q4 25
0.83×
2.74×
Q3 25
2.51×
2.11×
Q2 25
1.37×
-1.32×
Q1 25
0.15×
-0.07×
Q4 24
1.68×
2.50×
Q3 24
2.95×
-1.30×
Q2 24
0.98×
0.89×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

AON
AON

Commercial Risk Solutions$2.2B44%
Reinsurance Solutions$1.3B25%
Health Solutions$1.1B22%
Wealth Solutions$420.0M8%

MMM
MMM

Safety and Industrial business segment$2.9B49%
Transportation and Electronics business segment$1.8B31%
Consumer business segment$1.1B19%
Corporate$121.0M2%

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