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

Cintas is the larger business by last-quarter revenue ($6.4B vs $5.0B, roughly 1.3× Aon plc). Aon plc runs the higher net margin — 24.6% vs 7.8%, a 16.8% gap on every dollar of revenue. On growth, Cintas posted the faster year-over-year revenue change (8.9% vs 6.0%). Cintas produced more free cash flow last quarter ($1.3B vs $363.0M). Over the past eight quarters, Cintas's revenue compounded faster (61.2% CAGR vs 15.7%).

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.

Cintas Corporation is an American corporation headquartered in Mason, Ohio, which provides a range of products and services to businesses including uniforms, mats, mops, cleaning and restroom supplies, first aid and safety products, fire extinguishers and testing, and safety courses. Cintas is a publicly held company traded on the Nasdaq Global Select Market under the symbol CTAS and is a component of the S&P 500 Index.

AON vs CTAS — Head-to-Head

Bigger by revenue
CTAS
CTAS
1.3× larger
CTAS
$6.4B
$5.0B
AON
Growing faster (revenue YoY)
CTAS
CTAS
+2.9% gap
CTAS
8.9%
6.0%
AON
Higher net margin
AON
AON
16.8% more per $
AON
24.6%
7.8%
CTAS
More free cash flow
CTAS
CTAS
$905.1M more FCF
CTAS
$1.3B
$363.0M
AON
Faster 2-yr revenue CAGR
CTAS
CTAS
Annualised
CTAS
61.2%
15.7%
AON

Income Statement — Q1 FY2026 vs Q4 FY2026

Metric
AON
AON
CTAS
CTAS
Revenue
$5.0B
$6.4B
Net Profit
$1.2B
$502.5M
Gross Margin
83.1%
Operating Margin
34.1%
10.3%
Net Margin
24.6%
7.8%
Revenue YoY
6.0%
8.9%
Net Profit YoY
25.6%
8.4%
EPS (diluted)
$5.63
$1.24

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
CTAS
CTAS
Q1 26
$5.0B
$6.4B
Q4 25
$4.3B
$2.8B
Q3 25
$4.0B
$2.7B
Q2 25
$4.2B
$2.7B
Q1 25
$4.7B
$2.6B
Q4 24
$4.1B
$2.6B
Q3 24
$3.7B
$2.5B
Q2 24
$3.8B
$2.5B
Net Profit
AON
AON
CTAS
CTAS
Q1 26
$1.2B
$502.5M
Q4 25
$1.7B
$495.3M
Q3 25
$458.0M
$491.1M
Q2 25
$579.0M
$448.3M
Q1 25
$965.0M
$463.5M
Q4 24
$716.0M
$448.5M
Q3 24
$343.0M
$452.0M
Q2 24
$524.0M
$414.3M
Gross Margin
AON
AON
CTAS
CTAS
Q1 26
83.1%
Q4 25
50.4%
Q3 25
50.3%
Q2 25
49.7%
Q1 25
50.6%
Q4 24
49.8%
Q3 24
50.1%
Q2 24
Operating Margin
AON
AON
CTAS
CTAS
Q1 26
34.1%
10.3%
Q4 25
28.1%
23.4%
Q3 25
20.4%
22.7%
Q2 25
20.7%
22.4%
Q1 25
30.9%
23.4%
Q4 24
26.3%
23.1%
Q3 24
16.7%
22.4%
Q2 24
17.4%
22.2%
Net Margin
AON
AON
CTAS
CTAS
Q1 26
24.6%
7.8%
Q4 25
39.4%
17.7%
Q3 25
11.5%
18.1%
Q2 25
13.9%
16.8%
Q1 25
20.4%
17.8%
Q4 24
17.3%
17.5%
Q3 24
9.2%
18.1%
Q2 24
13.9%
16.8%
EPS (diluted)
AON
AON
CTAS
CTAS
Q1 26
$5.63
$1.24
Q4 25
$7.82
$1.21
Q3 25
$2.11
$1.20
Q2 25
$2.66
$1.08
Q1 25
$4.43
$1.13
Q4 24
$3.11
$1.09
Q3 24
$1.57
$1.10
Q2 24
$2.46
$4.00

Balance Sheet & Financial Strength

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

Metric
AON
AON
CTAS
CTAS
Cash + ST InvestmentsLiquidity on hand
$1.4M
$183.2M
Total DebtLower is stronger
$13.5M
Stockholders' EquityBook value
$10.0M
$4.8B
Total Assets
$51.4M
Debt / EquityLower = less leverage
1.36×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AON
AON
CTAS
CTAS
Q1 26
$1.4M
$183.2M
Q4 25
$2.8B
$200.8M
Q3 25
$1.3B
$138.1M
Q2 25
$1.4B
$264.0M
Q1 25
$1.3B
$243.4M
Q4 24
$1.3B
$122.4M
Q3 24
$1.3B
$101.4M
Q2 24
$1.2B
$342.0M
Total Debt
AON
AON
CTAS
CTAS
Q1 26
$13.5M
Q4 25
$15.2B
$2.4B
Q3 25
$2.4B
Q2 25
$2.4B
Q1 25
$2.0B
Q4 24
$17.0B
$2.0B
Q3 24
$2.0B
Q2 24
$2.0B
Stockholders' Equity
AON
AON
CTAS
CTAS
Q1 26
$10.0M
$4.8B
Q4 25
$9.4B
$4.5B
Q3 25
$7.9B
$4.8B
Q2 25
$7.8B
$4.7B
Q1 25
$7.0B
$4.6B
Q4 24
$6.1B
$4.3B
Q3 24
$6.2B
$4.0B
Q2 24
$5.9B
$4.3B
Total Assets
AON
AON
CTAS
CTAS
Q1 26
$51.4M
Q4 25
$50.8B
$10.1B
Q3 25
$51.6B
$9.8B
Q2 25
$54.0B
$9.8B
Q1 25
$50.3B
$9.6B
Q4 24
$49.0B
$9.4B
Q3 24
$49.9B
$9.1B
Q2 24
$51.5B
$9.2B
Debt / Equity
AON
AON
CTAS
CTAS
Q1 26
1.36×
Q4 25
1.63×
0.54×
Q3 25
0.51×
Q2 25
0.52×
Q1 25
0.44×
Q4 24
2.78×
0.47×
Q3 24
0.50×
Q2 24
0.47×

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
CTAS
CTAS
Operating Cash FlowLast quarter
$1.6B
Free Cash FlowOCF − Capex
$363.0M
$1.3B
FCF MarginFCF / Revenue
7.2%
19.7%
Capex IntensityCapex / Revenue
1.3%
4.7%
Cash ConversionOCF / Net Profit
3.12×
TTM Free Cash FlowTrailing 4 quarters
$3.5B
$2.5B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AON
AON
CTAS
CTAS
Q1 26
$1.6B
Q4 25
$1.4B
$531.2M
Q3 25
$1.1B
$414.5M
Q2 25
$796.0M
$635.7M
Q1 25
$140.0M
$622.0M
Q4 24
$1.2B
$441.4M
Q3 24
$1.0B
$466.7M
Q2 24
$513.0M
$693.0M
Free Cash Flow
AON
AON
CTAS
CTAS
Q1 26
$363.0M
$1.3B
Q4 25
$1.3B
$425.0M
Q3 25
$1.1B
$312.5M
Q2 25
$732.0M
$521.1M
Q1 25
$84.0M
$522.1M
Q4 24
$1.1B
$340.0M
Q3 24
$951.0M
$373.8M
Q2 24
$460.0M
$591.1M
FCF Margin
AON
AON
CTAS
CTAS
Q1 26
7.2%
19.7%
Q4 25
30.8%
15.2%
Q3 25
27.0%
11.5%
Q2 25
17.6%
19.5%
Q1 25
1.8%
20.0%
Q4 24
27.6%
13.3%
Q3 24
25.6%
14.9%
Q2 24
12.2%
23.9%
Capex Intensity
AON
AON
CTAS
CTAS
Q1 26
1.3%
4.7%
Q4 25
1.7%
3.8%
Q3 25
1.7%
3.8%
Q2 25
1.5%
4.3%
Q1 25
1.2%
3.8%
Q4 24
1.3%
4.0%
Q3 24
1.7%
3.7%
Q2 24
1.4%
4.1%
Cash Conversion
AON
AON
CTAS
CTAS
Q1 26
3.12×
Q4 25
0.83×
1.07×
Q3 25
2.51×
0.84×
Q2 25
1.37×
1.42×
Q1 25
0.15×
1.34×
Q4 24
1.68×
0.98×
Q3 24
2.95×
1.03×
Q2 24
0.98×
1.67×

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%

CTAS
CTAS

Segment breakdown not available.

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