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

Aon plc is the larger business by last-quarter revenue ($5.0B vs $3.5B, roughly 1.4× BORGWARNER INC). Aon plc runs the higher net margin — 24.6% vs 7.2%, a 17.4% gap on every dollar of revenue. On growth, Aon plc posted the faster year-over-year revenue change (6.0% vs 0.5%). Aon plc produced more free cash flow last quarter ($363.0M vs $13.0M). Over the past eight quarters, Aon plc's revenue compounded faster (15.7% CAGR vs -1.0%).

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.

BorgWarner Inc. is an American automotive and e-mobility supplier headquartered in Auburn Hills, Michigan. As of 2023, the company maintains production facilities and sites at 92 locations in 24 countries, and generates revenues of US$14.2 billion, while employing around 39,900 people. The company is one of the 25 largest automotive suppliers in the world. Since February 2025, Joseph F. Fadool has been CEO of BorgWarner Inc.

AON vs BWA — Head-to-Head

Bigger by revenue
AON
AON
1.4× larger
AON
$5.0B
$3.5B
BWA
Growing faster (revenue YoY)
AON
AON
+5.5% gap
AON
6.0%
0.5%
BWA
Higher net margin
AON
AON
17.4% more per $
AON
24.6%
7.2%
BWA
More free cash flow
AON
AON
$350.0M more FCF
AON
$363.0M
$13.0M
BWA
Faster 2-yr revenue CAGR
AON
AON
Annualised
AON
15.7%
-1.0%
BWA

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
AON
AON
BWA
BWA
Revenue
$5.0B
$3.5B
Net Profit
$1.2B
$255.0M
Gross Margin
19.2%
Operating Margin
34.1%
9.5%
Net Margin
24.6%
7.2%
Revenue YoY
6.0%
0.5%
Net Profit YoY
25.6%
54.1%
EPS (diluted)
$5.63
$1.16

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
BWA
BWA
Q1 26
$5.0B
$3.5B
Q4 25
$4.3B
$3.6B
Q3 25
$4.0B
$3.6B
Q2 25
$4.2B
$3.6B
Q1 25
$4.7B
$3.5B
Q4 24
$4.1B
$3.4B
Q3 24
$3.7B
$3.4B
Q2 24
$3.8B
$3.6B
Net Profit
AON
AON
BWA
BWA
Q1 26
$1.2B
$255.0M
Q4 25
$1.7B
$-262.0M
Q3 25
$458.0M
$158.0M
Q2 25
$579.0M
$224.0M
Q1 25
$965.0M
$157.0M
Q4 24
$716.0M
$-405.0M
Q3 24
$343.0M
$234.0M
Q2 24
$524.0M
$303.0M
Gross Margin
AON
AON
BWA
BWA
Q1 26
19.2%
Q4 25
20.5%
Q3 25
18.5%
Q2 25
17.6%
Q1 25
18.2%
Q4 24
19.9%
Q3 24
18.4%
Q2 24
19.0%
Operating Margin
AON
AON
BWA
BWA
Q1 26
34.1%
9.5%
Q4 25
28.1%
-6.7%
Q3 25
20.4%
6.9%
Q2 25
20.7%
7.9%
Q1 25
30.9%
6.7%
Q4 24
26.3%
-9.2%
Q3 24
16.7%
7.8%
Q2 24
17.4%
8.2%
Net Margin
AON
AON
BWA
BWA
Q1 26
24.6%
7.2%
Q4 25
39.4%
-7.3%
Q3 25
11.5%
4.4%
Q2 25
13.9%
6.2%
Q1 25
20.4%
4.5%
Q4 24
17.3%
-11.8%
Q3 24
9.2%
6.8%
Q2 24
13.9%
8.4%
EPS (diluted)
AON
AON
BWA
BWA
Q1 26
$5.63
$1.16
Q4 25
$7.82
$-1.20
Q3 25
$2.11
$0.73
Q2 25
$2.66
$1.03
Q1 25
$4.43
$0.72
Q4 24
$3.11
$-1.78
Q3 24
$1.57
$1.04
Q2 24
$2.46
$1.34

Balance Sheet & Financial Strength

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

Metric
AON
AON
BWA
BWA
Cash + ST InvestmentsLiquidity on hand
$1.4M
$2.1B
Total DebtLower is stronger
$13.5M
$3.9B
Stockholders' EquityBook value
$10.0M
$5.6B
Total Assets
$51.4M
$13.7B
Debt / EquityLower = less leverage
1.36×
0.69×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AON
AON
BWA
BWA
Q1 26
$1.4M
$2.1B
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
BWA
BWA
Q1 26
$13.5M
$3.9B
Q4 25
$15.2B
$3.9B
Q3 25
$3.9B
Q2 25
$3.9B
Q1 25
$3.8B
Q4 24
$17.0B
$3.8B
Q3 24
$4.2B
Q2 24
$3.3B
Stockholders' Equity
AON
AON
BWA
BWA
Q1 26
$10.0M
$5.6B
Q4 25
$9.4B
$5.4B
Q3 25
$7.9B
$6.0B
Q2 25
$7.8B
$5.9B
Q1 25
$7.0B
$5.7B
Q4 24
$6.1B
$5.5B
Q3 24
$6.2B
$6.2B
Q2 24
$5.9B
$6.1B
Total Assets
AON
AON
BWA
BWA
Q1 26
$51.4M
$13.7B
Q4 25
$50.8B
$13.8B
Q3 25
$51.6B
$14.5B
Q2 25
$54.0B
$14.4B
Q1 25
$50.3B
$13.8B
Q4 24
$49.0B
$14.0B
Q3 24
$49.9B
$15.1B
Q2 24
$51.5B
$14.1B
Debt / Equity
AON
AON
BWA
BWA
Q1 26
1.36×
0.69×
Q4 25
1.63×
0.72×
Q3 25
0.65×
Q2 25
0.66×
Q1 25
0.66×
Q4 24
2.78×
0.68×
Q3 24
0.68×
Q2 24
0.54×

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
BWA
BWA
Operating Cash FlowLast quarter
$152.0M
Free Cash FlowOCF − Capex
$363.0M
$13.0M
FCF MarginFCF / Revenue
7.2%
0.4%
Capex IntensityCapex / Revenue
1.3%
4.0%
Cash ConversionOCF / Net Profit
0.60×
TTM Free Cash FlowTrailing 4 quarters
$3.5B
$1.2B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AON
AON
BWA
BWA
Q1 26
$152.0M
Q4 25
$1.4B
$619.0M
Q3 25
$1.1B
$368.0M
Q2 25
$796.0M
$579.0M
Q1 25
$140.0M
$82.0M
Q4 24
$1.2B
$682.0M
Q3 24
$1.0B
$356.0M
Q2 24
$513.0M
$462.0M
Free Cash Flow
AON
AON
BWA
BWA
Q1 26
$363.0M
$13.0M
Q4 25
$1.3B
$457.0M
Q3 25
$1.1B
$257.0M
Q2 25
$732.0M
$502.0M
Q1 25
$84.0M
$-37.0M
Q4 24
$1.1B
$521.0M
Q3 24
$951.0M
$201.0M
Q2 24
$460.0M
$297.0M
FCF Margin
AON
AON
BWA
BWA
Q1 26
7.2%
0.4%
Q4 25
30.8%
12.8%
Q3 25
27.0%
7.2%
Q2 25
17.6%
13.8%
Q1 25
1.8%
-1.1%
Q4 24
27.6%
15.1%
Q3 24
25.6%
5.8%
Q2 24
12.2%
8.2%
Capex Intensity
AON
AON
BWA
BWA
Q1 26
1.3%
4.0%
Q4 25
1.7%
4.5%
Q3 25
1.7%
3.1%
Q2 25
1.5%
2.1%
Q1 25
1.2%
3.4%
Q4 24
1.3%
4.7%
Q3 24
1.7%
4.5%
Q2 24
1.4%
4.6%
Cash Conversion
AON
AON
BWA
BWA
Q1 26
0.60×
Q4 25
0.83×
Q3 25
2.51×
2.33×
Q2 25
1.37×
2.58×
Q1 25
0.15×
0.52×
Q4 24
1.68×
Q3 24
2.95×
1.52×
Q2 24
0.98×
1.52×

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%

BWA
BWA

Turbos & Thermal Technologies$1.4B41%
Drivetrain & Morse Systems$1.4B40%
PowerDrive Systems$587.0M17%
Battery Energy Systems$102.0M3%

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