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

Aon plc is the larger business by last-quarter revenue ($5.0B vs $3.8B, roughly 1.3× FirstEnergy). Aon plc runs the higher net margin — 24.6% vs -1.3%, a 25.9% gap on every dollar of revenue. On growth, FirstEnergy posted the faster year-over-year revenue change (19.6% vs 6.0%). Aon plc produced more free cash flow last quarter ($363.0M vs $-30.0M). Over the past eight quarters, Aon plc's revenue compounded faster (15.7% CAGR vs 7.5%).

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.

FirstEnergy Corp. is an electric utility headquartered in Akron, Ohio. It was established when Ohio Edison merged with Centerior Energy in 1997.

AON vs FE — Head-to-Head

Bigger by revenue
AON
AON
1.3× larger
AON
$5.0B
$3.8B
FE
Growing faster (revenue YoY)
FE
FE
+13.6% gap
FE
19.6%
6.0%
AON
Higher net margin
AON
AON
25.9% more per $
AON
24.6%
-1.3%
FE
More free cash flow
AON
AON
$393.0M more FCF
AON
$363.0M
$-30.0M
FE
Faster 2-yr revenue CAGR
AON
AON
Annualised
AON
15.7%
7.5%
FE

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
AON
AON
FE
FE
Revenue
$5.0B
$3.8B
Net Profit
$1.2B
$-49.0M
Gross Margin
Operating Margin
34.1%
-0.6%
Net Margin
24.6%
-1.3%
Revenue YoY
6.0%
19.6%
Net Profit YoY
25.6%
-118.8%
EPS (diluted)
$5.63
$-0.08

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
FE
FE
Q1 26
$5.0B
Q4 25
$4.3B
$3.8B
Q3 25
$4.0B
$4.1B
Q2 25
$4.2B
$3.4B
Q1 25
$4.7B
$3.8B
Q4 24
$4.1B
$3.2B
Q3 24
$3.7B
$3.7B
Q2 24
$3.8B
$3.3B
Net Profit
AON
AON
FE
FE
Q1 26
$1.2B
Q4 25
$1.7B
$-49.0M
Q3 25
$458.0M
$441.0M
Q2 25
$579.0M
$268.0M
Q1 25
$965.0M
$360.0M
Q4 24
$716.0M
$261.0M
Q3 24
$343.0M
$419.0M
Q2 24
$524.0M
$45.0M
Operating Margin
AON
AON
FE
FE
Q1 26
34.1%
Q4 25
28.1%
-0.6%
Q3 25
20.4%
20.0%
Q2 25
20.7%
19.1%
Q1 25
30.9%
20.0%
Q4 24
26.3%
19.3%
Q3 24
16.7%
19.5%
Q2 24
17.4%
12.9%
Net Margin
AON
AON
FE
FE
Q1 26
24.6%
Q4 25
39.4%
-1.3%
Q3 25
11.5%
10.6%
Q2 25
13.9%
7.9%
Q1 25
20.4%
9.6%
Q4 24
17.3%
8.2%
Q3 24
9.2%
11.2%
Q2 24
13.9%
1.4%
EPS (diluted)
AON
AON
FE
FE
Q1 26
$5.63
Q4 25
$7.82
$-0.08
Q3 25
$2.11
$0.76
Q2 25
$2.66
$0.46
Q1 25
$4.43
$0.62
Q4 24
$3.11
$0.45
Q3 24
$1.57
$0.73
Q2 24
$2.46
$0.08

Balance Sheet & Financial Strength

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

Metric
AON
AON
FE
FE
Cash + ST InvestmentsLiquidity on hand
$1.4M
$57.0M
Total DebtLower is stronger
$13.5M
$25.5B
Stockholders' EquityBook value
$10.0M
$12.5B
Total Assets
$51.4M
$55.9B
Debt / EquityLower = less leverage
1.36×
2.04×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AON
AON
FE
FE
Q1 26
$1.4M
Q4 25
$2.8B
$57.0M
Q3 25
$1.3B
$1.4B
Q2 25
$1.4B
$569.0M
Q1 25
$1.3B
$132.0M
Q4 24
$1.3B
$111.0M
Q3 24
$1.3B
$439.0M
Q2 24
$1.2B
$60.0M
Total Debt
AON
AON
FE
FE
Q1 26
$13.5M
Q4 25
$15.2B
$25.5B
Q3 25
$25.5B
Q2 25
$23.7B
Q1 25
$21.2B
Q4 24
$17.0B
$22.5B
Q3 24
$21.6B
Q2 24
$20.8B
Stockholders' Equity
AON
AON
FE
FE
Q1 26
$10.0M
Q4 25
$9.4B
$12.5B
Q3 25
$7.9B
$12.8B
Q2 25
$7.8B
$12.9B
Q1 25
$7.0B
$12.6B
Q4 24
$6.1B
$12.5B
Q3 24
$6.2B
$12.4B
Q2 24
$5.9B
$12.5B
Total Assets
AON
AON
FE
FE
Q1 26
$51.4M
Q4 25
$50.8B
$55.9B
Q3 25
$51.6B
$55.9B
Q2 25
$54.0B
$54.2B
Q1 25
$50.3B
$52.8B
Q4 24
$49.0B
$52.0B
Q3 24
$49.9B
$50.8B
Q2 24
$51.5B
$51.0B
Debt / Equity
AON
AON
FE
FE
Q1 26
1.36×
Q4 25
1.63×
2.04×
Q3 25
1.99×
Q2 25
1.85×
Q1 25
1.69×
Q4 24
2.78×
1.81×
Q3 24
1.74×
Q2 24
1.67×

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
FE
FE
Operating Cash FlowLast quarter
$1.1B
Free Cash FlowOCF − Capex
$363.0M
$-30.0M
FCF MarginFCF / Revenue
7.2%
-0.8%
Capex IntensityCapex / Revenue
1.3%
30.7%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$3.5B
$-1.0B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AON
AON
FE
FE
Q1 26
Q4 25
$1.4B
$1.1B
Q3 25
$1.1B
$845.0M
Q2 25
$796.0M
$1.1B
Q1 25
$140.0M
$637.0M
Q4 24
$1.2B
$1.0B
Q3 24
$1.0B
$775.0M
Q2 24
$513.0M
$1.1B
Free Cash Flow
AON
AON
FE
FE
Q1 26
$363.0M
Q4 25
$1.3B
$-30.0M
Q3 25
$1.1B
$-471.0M
Q2 25
$732.0M
$-136.0M
Q1 25
$84.0M
$-368.0M
Q4 24
$1.1B
$-250.0M
Q3 24
$951.0M
$-229.0M
Q2 24
$460.0M
$170.0M
FCF Margin
AON
AON
FE
FE
Q1 26
7.2%
Q4 25
30.8%
-0.8%
Q3 25
27.0%
-11.4%
Q2 25
17.6%
-4.0%
Q1 25
1.8%
-9.8%
Q4 24
27.6%
-7.9%
Q3 24
25.6%
-6.1%
Q2 24
12.2%
5.2%
Capex Intensity
AON
AON
FE
FE
Q1 26
1.3%
Q4 25
1.7%
30.7%
Q3 25
1.7%
31.7%
Q2 25
1.5%
36.0%
Q1 25
1.2%
26.7%
Q4 24
1.3%
40.7%
Q3 24
1.7%
26.9%
Q2 24
1.4%
28.7%
Cash Conversion
AON
AON
FE
FE
Q1 26
Q4 25
0.83×
Q3 25
2.51×
1.92×
Q2 25
1.37×
4.04×
Q1 25
0.15×
1.77×
Q4 24
1.68×
4.00×
Q3 24
2.95×
1.85×
Q2 24
0.98×
24.71×

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%

FE
FE

Integrated Segment$1.4B37%
Other$1.4B36%
Stand Alone Transmission Segment$466.0M12%
Industrial Customers$167.0M4%
Mid Atlantic Interstate Transmission LLC$118.0M3%
Transmission$105.0M3%
Transmission Segment$68.0M2%
Tr AIL$63.0M2%
Internal Customers$10.0M0%
Wholesale Sales$6.0M0%

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