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Side-by-side financial comparison of AAR CORP (AIR) and UL Solutions Inc. (ULS). Click either name above to swap in a different company.

AAR CORP is the larger business by last-quarter revenue ($795.3M vs $789.0M, roughly 1.0× UL Solutions Inc.). UL Solutions Inc. runs the higher net margin — 8.5% vs 4.4%, a 4.1% gap on every dollar of revenue. On growth, AAR CORP posted the faster year-over-year revenue change (15.9% vs 6.8%). UL Solutions Inc. produced more free cash flow last quarter ($86.0M vs $6.2M).

AAR Corp. is an American provider of aircraft maintenance services to commercial and government customers worldwide. The company is headquartered in Wood Dale, Illinois, a Chicago suburb. The company employs about 6,000 people, operating in about 30 different countries. John Holmes is the current CEO.

The UL enterprise is a global private safety company headquartered in Northbrook, Illinois, composed of three organizations, UL Research Institutes, UL Standards & Engagement and UL Solutions.

AIR vs ULS — Head-to-Head

Bigger by revenue
AIR
AIR
1.0× larger
AIR
$795.3M
$789.0M
ULS
Growing faster (revenue YoY)
AIR
AIR
+9.2% gap
AIR
15.9%
6.8%
ULS
Higher net margin
ULS
ULS
4.1% more per $
ULS
8.5%
4.4%
AIR
More free cash flow
ULS
ULS
$79.8M more FCF
ULS
$86.0M
$6.2M
AIR

Income Statement — Q2 FY2026 vs Q4 FY2025

Metric
AIR
AIR
ULS
ULS
Revenue
$795.3M
$789.0M
Net Profit
$34.6M
$67.0M
Gross Margin
19.7%
49.7%
Operating Margin
6.0%
15.0%
Net Margin
4.4%
8.5%
Revenue YoY
15.9%
6.8%
Net Profit YoY
213.1%
-17.3%
EPS (diluted)
$0.90
$0.33

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
AIR
AIR
ULS
ULS
Q4 25
$795.3M
$789.0M
Q3 25
$739.6M
$783.0M
Q2 25
$776.0M
Q1 25
$705.0M
Q4 24
$739.0M
Q3 24
$731.0M
Q2 24
$730.0M
Q1 24
$670.0M
Net Profit
AIR
AIR
ULS
ULS
Q4 25
$34.6M
$67.0M
Q3 25
$34.4M
$100.0M
Q2 25
$91.0M
Q1 25
$67.0M
Q4 24
$81.0M
Q3 24
$88.0M
Q2 24
$101.0M
Q1 24
$56.0M
Gross Margin
AIR
AIR
ULS
ULS
Q4 25
19.7%
49.7%
Q3 25
18.1%
50.3%
Q2 25
49.4%
Q1 25
48.4%
Q4 24
47.4%
Q3 24
49.0%
Q2 24
50.1%
Q1 24
47.6%
Operating Margin
AIR
AIR
ULS
ULS
Q4 25
6.0%
15.0%
Q3 25
6.4%
19.9%
Q2 25
17.9%
Q1 25
15.5%
Q4 24
15.6%
Q3 24
17.8%
Q2 24
17.3%
Q1 24
13.6%
Net Margin
AIR
AIR
ULS
ULS
Q4 25
4.4%
8.5%
Q3 25
4.7%
12.8%
Q2 25
11.7%
Q1 25
9.5%
Q4 24
11.0%
Q3 24
12.0%
Q2 24
13.8%
Q1 24
8.4%
EPS (diluted)
AIR
AIR
ULS
ULS
Q4 25
$0.90
$0.33
Q3 25
$0.95
$0.49
Q2 25
$0.45
Q1 25
$0.33
Q4 24
$0.40
Q3 24
$0.44
Q2 24
$0.50
Q1 24
$0.28

Balance Sheet & Financial Strength

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

Metric
AIR
AIR
ULS
ULS
Cash + ST InvestmentsLiquidity on hand
$75.6M
$295.0M
Total DebtLower is stronger
$952.7M
$491.0M
Stockholders' EquityBook value
$1.6B
$1.3B
Total Assets
$3.2B
$2.9B
Debt / EquityLower = less leverage
0.61×
0.39×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AIR
AIR
ULS
ULS
Q4 25
$75.6M
$295.0M
Q3 25
$80.0M
$255.0M
Q2 25
$272.0M
Q1 25
$267.0M
Q4 24
$298.0M
Q3 24
$327.0M
Q2 24
$295.0M
Q1 24
$344.0M
Total Debt
AIR
AIR
ULS
ULS
Q4 25
$952.7M
$491.0M
Q3 25
$1.0B
$544.0M
Q2 25
$608.0M
Q1 25
$653.0M
Q4 24
$742.0M
Q3 24
$797.0M
Q2 24
$810.0M
Q1 24
$879.0M
Stockholders' Equity
AIR
AIR
ULS
ULS
Q4 25
$1.6B
$1.3B
Q3 25
$1.2B
$1.2B
Q2 25
$1.1B
Q1 25
$970.0M
Q4 24
$904.0M
Q3 24
$872.0M
Q2 24
$769.0M
Q1 24
$671.0M
Total Assets
AIR
AIR
ULS
ULS
Q4 25
$3.2B
$2.9B
Q3 25
$2.9B
$2.9B
Q2 25
$2.9B
Q1 25
$2.9B
Q4 24
$2.8B
Q3 24
$2.9B
Q2 24
$2.7B
Q1 24
$2.8B
Debt / Equity
AIR
AIR
ULS
ULS
Q4 25
0.61×
0.39×
Q3 25
0.82×
0.46×
Q2 25
0.56×
Q1 25
0.67×
Q4 24
0.82×
Q3 24
0.91×
Q2 24
1.05×
Q1 24
1.31×

Cash Flow & Capital Efficiency

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

Metric
AIR
AIR
ULS
ULS
Operating Cash FlowLast quarter
$13.6M
$144.0M
Free Cash FlowOCF − Capex
$6.2M
$86.0M
FCF MarginFCF / Revenue
0.8%
10.9%
Capex IntensityCapex / Revenue
0.9%
7.4%
Cash ConversionOCF / Net Profit
0.39×
2.15×
TTM Free Cash FlowTrailing 4 quarters
$403.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AIR
AIR
ULS
ULS
Q4 25
$13.6M
$144.0M
Q3 25
$-44.9M
$155.0M
Q2 25
$147.0M
Q1 25
$154.0M
Q4 24
$130.0M
Q3 24
$150.0M
Q2 24
$103.0M
Q1 24
$141.0M
Free Cash Flow
AIR
AIR
ULS
ULS
Q4 25
$6.2M
$86.0M
Q3 25
$-53.6M
$109.0M
Q2 25
$105.0M
Q1 25
$103.0M
Q4 24
$72.0M
Q3 24
$84.0M
Q2 24
$47.0M
Q1 24
$84.0M
FCF Margin
AIR
AIR
ULS
ULS
Q4 25
0.8%
10.9%
Q3 25
-7.2%
13.9%
Q2 25
13.5%
Q1 25
14.6%
Q4 24
9.7%
Q3 24
11.5%
Q2 24
6.4%
Q1 24
12.5%
Capex Intensity
AIR
AIR
ULS
ULS
Q4 25
0.9%
7.4%
Q3 25
1.2%
5.9%
Q2 25
5.4%
Q1 25
7.2%
Q4 24
7.8%
Q3 24
9.0%
Q2 24
7.7%
Q1 24
8.5%
Cash Conversion
AIR
AIR
ULS
ULS
Q4 25
0.39×
2.15×
Q3 25
-1.31×
1.55×
Q2 25
1.62×
Q1 25
2.30×
Q4 24
1.60×
Q3 24
1.70×
Q2 24
1.02×
Q1 24
2.52×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AIR
AIR

Commercial Customer$268.1M34%
Repair And Engineering$244.5M31%
Integrated Solutions$175.8M22%
Government And Defense Customer$85.5M11%
Expeditionary Services$21.4M3%

ULS
ULS

Industrial$352.0M45%
Ongoing Certification Services$259.0M33%
Software And Advisory$102.0M13%
Software$75.0M10%

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