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

JONES LANG LASALLE INC is the larger business by last-quarter revenue ($7.6B vs $4.3B, roughly 1.8× Aon plc). Aon plc runs the higher net margin — 39.4% vs 5.3%, a 34.1% gap on every dollar of revenue. On growth, JONES LANG LASALLE INC posted the faster year-over-year revenue change (11.7% vs 3.7%). Over the past eight quarters, JONES LANG LASALLE INC's revenue compounded faster (21.9% CAGR vs 2.8%).

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.

Jones Lang LaSalle Incorporated (JLL) is a global real estate services company headquartered in Chicago. The company has offices in 80 countries. It offers investment management services worldwide, including services to institutional and retail investors, and to high-net-worth individuals, as well as technology products through JLL Technologies, and venture capital investments through its PropTech fund, JLL Spark. The company is ranked 188 on the Fortune 500.

AON vs JLL — Head-to-Head

Bigger by revenue
JLL
JLL
1.8× larger
JLL
$7.6B
$4.3B
AON
Growing faster (revenue YoY)
JLL
JLL
+8.0% gap
JLL
11.7%
3.7%
AON
Higher net margin
AON
AON
34.1% more per $
AON
39.4%
5.3%
JLL
Faster 2-yr revenue CAGR
JLL
JLL
Annualised
JLL
21.9%
2.8%
AON

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AON
AON
JLL
JLL
Revenue
$4.3B
$7.6B
Net Profit
$1.7B
$401.8M
Gross Margin
Operating Margin
28.1%
6.7%
Net Margin
39.4%
5.3%
Revenue YoY
3.7%
11.7%
Net Profit YoY
136.5%
66.6%
EPS (diluted)
$7.82
$8.33

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
JLL
JLL
Q4 25
$4.3B
$7.6B
Q3 25
$4.0B
$6.5B
Q2 25
$4.2B
$6.3B
Q1 25
$4.7B
$5.7B
Q4 24
$4.1B
$6.8B
Q3 24
$3.7B
$5.9B
Q2 24
$3.8B
$5.6B
Q1 24
$4.1B
$5.1B
Net Profit
AON
AON
JLL
JLL
Q4 25
$1.7B
$401.8M
Q3 25
$458.0M
$222.4M
Q2 25
$579.0M
$110.5M
Q1 25
$965.0M
$57.5M
Q4 24
$716.0M
$241.2M
Q3 24
$343.0M
$155.1M
Q2 24
$524.0M
$84.4M
Q1 24
$1.1B
$66.1M
Operating Margin
AON
AON
JLL
JLL
Q4 25
28.1%
6.7%
Q3 25
20.4%
4.2%
Q2 25
20.7%
3.2%
Q1 25
30.9%
2.1%
Q4 24
26.3%
5.5%
Q3 24
16.7%
3.9%
Q2 24
17.4%
2.7%
Q1 24
36.0%
2.2%
Net Margin
AON
AON
JLL
JLL
Q4 25
39.4%
5.3%
Q3 25
11.5%
3.4%
Q2 25
13.9%
1.8%
Q1 25
20.4%
1.0%
Q4 24
17.3%
3.5%
Q3 24
9.2%
2.6%
Q2 24
13.9%
1.5%
Q1 24
26.3%
1.3%
EPS (diluted)
AON
AON
JLL
JLL
Q4 25
$7.82
$8.33
Q3 25
$2.11
$4.61
Q2 25
$2.66
$2.32
Q1 25
$4.43
$1.14
Q4 24
$3.11
$4.98
Q3 24
$1.57
$3.20
Q2 24
$2.46
$1.75
Q1 24
$5.35
$1.37

Balance Sheet & Financial Strength

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

Metric
AON
AON
JLL
JLL
Cash + ST InvestmentsLiquidity on hand
$2.8B
$599.1M
Total DebtLower is stronger
$15.2B
Stockholders' EquityBook value
$9.4B
$7.5B
Total Assets
$50.8B
$17.8B
Debt / EquityLower = less leverage
1.63×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AON
AON
JLL
JLL
Q4 25
$2.8B
$599.1M
Q3 25
$1.3B
$428.9M
Q2 25
$1.4B
$401.4M
Q1 25
$1.3B
$432.4M
Q4 24
$1.3B
$416.3M
Q3 24
$1.3B
$437.8M
Q2 24
$1.2B
$424.4M
Q1 24
$6.4B
$396.7M
Total Debt
AON
AON
JLL
JLL
Q4 25
$15.2B
Q3 25
Q2 25
Q1 25
Q4 24
$17.0B
Q3 24
Q2 24
Q1 24
Stockholders' Equity
AON
AON
JLL
JLL
Q4 25
$9.4B
$7.5B
Q3 25
$7.9B
$7.2B
Q2 25
$7.8B
$7.0B
Q1 25
$7.0B
$6.8B
Q4 24
$6.1B
$6.8B
Q3 24
$6.2B
$6.6B
Q2 24
$5.9B
$6.4B
Q1 24
$-133.0M
$6.3B
Total Assets
AON
AON
JLL
JLL
Q4 25
$50.8B
$17.8B
Q3 25
$51.6B
$17.2B
Q2 25
$54.0B
$17.3B
Q1 25
$50.3B
$16.6B
Q4 24
$49.0B
$16.8B
Q3 24
$49.9B
$17.8B
Q2 24
$51.5B
$15.9B
Q1 24
$40.8B
$15.5B
Debt / Equity
AON
AON
JLL
JLL
Q4 25
1.63×
Q3 25
Q2 25
Q1 25
Q4 24
2.78×
Q3 24
Q2 24
Q1 24

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
JLL
JLL
Operating Cash FlowLast quarter
$1.4B
$1.0B
Free Cash FlowOCF − Capex
$1.3B
FCF MarginFCF / Revenue
30.8%
Capex IntensityCapex / Revenue
1.7%
Cash ConversionOCF / Net Profit
0.83×
2.52×
TTM Free Cash FlowTrailing 4 quarters
$3.2B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AON
AON
JLL
JLL
Q4 25
$1.4B
$1.0B
Q3 25
$1.1B
$617.1M
Q2 25
$796.0M
$332.8M
Q1 25
$140.0M
$-767.6M
Q4 24
$1.2B
$927.3M
Q3 24
$1.0B
$261.6M
Q2 24
$513.0M
$273.9M
Q1 24
$309.0M
$-677.5M
Free Cash Flow
AON
AON
JLL
JLL
Q4 25
$1.3B
Q3 25
$1.1B
Q2 25
$732.0M
Q1 25
$84.0M
Q4 24
$1.1B
Q3 24
$951.0M
Q2 24
$460.0M
Q1 24
$261.0M
FCF Margin
AON
AON
JLL
JLL
Q4 25
30.8%
Q3 25
27.0%
Q2 25
17.6%
Q1 25
1.8%
Q4 24
27.6%
Q3 24
25.6%
Q2 24
12.2%
Q1 24
6.4%
Capex Intensity
AON
AON
JLL
JLL
Q4 25
1.7%
Q3 25
1.7%
Q2 25
1.5%
Q1 25
1.2%
Q4 24
1.3%
Q3 24
1.7%
Q2 24
1.4%
Q1 24
1.2%
Cash Conversion
AON
AON
JLL
JLL
Q4 25
0.83×
2.52×
Q3 25
2.51×
2.77×
Q2 25
1.37×
3.01×
Q1 25
0.15×
-13.35×
Q4 24
1.68×
3.84×
Q3 24
2.95×
1.69×
Q2 24
0.98×
3.25×
Q1 24
0.29×
-10.25×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AON
AON

Commercial Risk Solutions$2.3B54%
Health Solutions$1.1B26%
Wealth Solutions$490.0M11%
Reinsurance Solutions$379.0M9%

JLL
JLL

Workplace Management$3.8B50%
Project Management$1.1B15%
Leasing Advisory$1.0B13%
Leasing$964.9M13%
Property Management$480.2M6%
Portfolio Services And Other$152.1M2%
Advisory Fees$98.1M1%
Loan Servicing$42.2M1%
Transaction Fees Other$16.4M0%

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