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Side-by-side financial comparison of CARLISLE COMPANIES INC (CSL) and Iron Mountain (IRM). Click either name above to swap in a different company.

Iron Mountain is the larger business by last-quarter revenue ($1.8B vs $1.1B, roughly 1.8× CARLISLE COMPANIES INC). CARLISLE COMPANIES INC runs the higher net margin — 12.1% vs 5.1%, a 7.1% gap on every dollar of revenue. On growth, Iron Mountain posted the faster year-over-year revenue change (16.6% vs -4.0%). Iron Mountain produced more free cash flow last quarter ($-16.2M vs $-73.0M). Over the past eight quarters, Iron Mountain's revenue compounded faster (11.7% CAGR vs -14.8%).

Carlisle Companies Incorporated is a supplier of construction products that make buildings more energy efficient and resilient. The company manufactures and sells single-ply roofing products as well as warranted systems and accessories for the commercial building industry. The company is organized into two segments, including Carlisle Construction Materials and Carlisle Weatherproofing Technologies. The company's product portfolio includes moisture protection products, protective roofing unde...

Iron Mountain Inc. is an American enterprise information management services company founded in 1951 and headquartered in Portsmouth, New Hampshire. Its records management, information destruction, and data backup and recovery services are supplied to more than 220,000 customers in 58 countries throughout North America, Europe, Latin America, Africa, Asia, and Oceania.

CSL vs IRM — Head-to-Head

Bigger by revenue
IRM
IRM
1.8× larger
IRM
$1.8B
$1.1B
CSL
Growing faster (revenue YoY)
IRM
IRM
+20.5% gap
IRM
16.6%
-4.0%
CSL
Higher net margin
CSL
CSL
7.1% more per $
CSL
12.1%
5.1%
IRM
More free cash flow
IRM
IRM
$56.8M more FCF
IRM
$-16.2M
$-73.0M
CSL
Faster 2-yr revenue CAGR
IRM
IRM
Annualised
IRM
11.7%
-14.8%
CSL

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
CSL
CSL
IRM
IRM
Revenue
$1.1B
$1.8B
Net Profit
$127.7M
$93.1M
Gross Margin
34.5%
Operating Margin
17.1%
18.5%
Net Margin
12.1%
5.1%
Revenue YoY
-4.0%
16.6%
Net Profit YoY
-10.9%
-11.9%
EPS (diluted)
$3.10
$0.31

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
CSL
CSL
IRM
IRM
Q1 26
$1.1B
Q4 25
$1.1B
$1.8B
Q3 25
$1.3B
$1.8B
Q2 25
$1.4B
$1.7B
Q1 25
$1.1B
$1.6B
Q4 24
$1.1B
$1.6B
Q3 24
$1.3B
$1.6B
Q2 24
$1.5B
$1.5B
Net Profit
CSL
CSL
IRM
IRM
Q1 26
$127.7M
Q4 25
$127.4M
$93.1M
Q3 25
$214.2M
$86.2M
Q2 25
$255.8M
$-43.3M
Q1 25
$143.3M
$16.2M
Q4 24
$162.8M
$105.7M
Q3 24
$244.3M
$-33.7M
Q2 24
$712.4M
$34.6M
Gross Margin
CSL
CSL
IRM
IRM
Q1 26
34.5%
Q4 25
33.8%
Q3 25
36.0%
Q2 25
37.3%
Q1 25
35.2%
Q4 24
36.1%
Q3 24
38.6%
Q2 24
39.2%
Operating Margin
CSL
CSL
IRM
IRM
Q1 26
17.1%
Q4 25
16.8%
18.5%
Q3 25
21.8%
17.6%
Q2 25
23.1%
15.2%
Q1 25
16.8%
16.0%
Q4 24
19.9%
17.9%
Q3 24
23.7%
16.1%
Q2 24
26.0%
15.0%
Net Margin
CSL
CSL
IRM
IRM
Q1 26
12.1%
Q4 25
11.3%
5.1%
Q3 25
15.9%
4.9%
Q2 25
17.6%
-2.5%
Q1 25
13.1%
1.0%
Q4 24
14.5%
6.7%
Q3 24
18.3%
-2.2%
Q2 24
49.1%
2.3%
EPS (diluted)
CSL
CSL
IRM
IRM
Q1 26
$3.10
Q4 25
$3.06
$0.31
Q3 25
$4.98
$0.28
Q2 25
$5.88
$-0.15
Q1 25
$3.20
$0.05
Q4 24
$3.76
$0.35
Q3 24
$5.25
$-0.11
Q2 24
$14.84
$0.12

Balance Sheet & Financial Strength

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

Metric
CSL
CSL
IRM
IRM
Cash + ST InvestmentsLiquidity on hand
$771.3M
$158.5M
Total DebtLower is stronger
$16.2B
Stockholders' EquityBook value
$1.7B
$-981.0M
Total Assets
$21.1B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CSL
CSL
IRM
IRM
Q1 26
$771.3M
Q4 25
$1.1B
$158.5M
Q3 25
$1.1B
Q2 25
$68.4M
Q1 25
$220.2M
Q4 24
$753.5M
$155.7M
Q3 24
$1.5B
Q2 24
$1.7B
Total Debt
CSL
CSL
IRM
IRM
Q1 26
Q4 25
$2.9B
$16.2B
Q3 25
$2.9B
$15.5B
Q2 25
$1.9B
$14.8B
Q1 25
$1.9B
$14.2B
Q4 24
$1.9B
$13.0B
Q3 24
$2.3B
$13.2B
Q2 24
$2.3B
$12.8B
Stockholders' Equity
CSL
CSL
IRM
IRM
Q1 26
$1.7B
Q4 25
$1.8B
$-981.0M
Q3 25
$2.0B
$-882.0M
Q2 25
$2.1B
$-767.4M
Q1 25
$2.2B
$-698.5M
Q4 24
$2.5B
$-503.1M
Q3 24
$2.8B
$-259.0M
Q2 24
$3.0B
$-132.9M
Total Assets
CSL
CSL
IRM
IRM
Q1 26
Q4 25
$6.3B
$21.1B
Q3 25
$6.5B
$20.6B
Q2 25
$5.5B
$20.2B
Q1 25
$5.5B
$19.4B
Q4 24
$5.8B
$18.7B
Q3 24
$6.5B
$18.5B
Q2 24
$6.7B
$18.0B
Debt / Equity
CSL
CSL
IRM
IRM
Q1 26
Q4 25
1.61×
Q3 25
1.45×
Q2 25
0.89×
Q1 25
0.87×
Q4 24
0.77×
Q3 24
0.83×
Q2 24
0.76×

Cash Flow & Capital Efficiency

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

Metric
CSL
CSL
IRM
IRM
Operating Cash FlowLast quarter
$500.0M
Free Cash FlowOCF − Capex
$-73.0M
$-16.2M
FCF MarginFCF / Revenue
-6.9%
-0.9%
Capex IntensityCapex / Revenue
2.7%
28.0%
Cash ConversionOCF / Net Profit
5.37×
TTM Free Cash FlowTrailing 4 quarters
$924.8M
$-931.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CSL
CSL
IRM
IRM
Q1 26
Q4 25
$386.0M
$500.0M
Q3 25
$426.9M
$267.6M
Q2 25
$287.1M
$375.1M
Q1 25
$1.8M
$197.3M
Q4 24
$370.6M
$431.6M
Q3 24
$312.8M
$252.9M
Q2 24
$183.4M
$382.2M
Free Cash Flow
CSL
CSL
IRM
IRM
Q1 26
$-73.0M
Q4 25
$346.1M
$-16.2M
Q3 25
$393.4M
$-256.3M
Q2 25
$258.3M
$-181.6M
Q1 25
$-27.2M
$-477.5M
Q4 24
$334.0M
$-186.0M
Q3 24
$293.5M
$-143.2M
Q2 24
$158.5M
$-14.6M
FCF Margin
CSL
CSL
IRM
IRM
Q1 26
-6.9%
Q4 25
30.7%
-0.9%
Q3 25
29.2%
-14.6%
Q2 25
17.8%
-10.6%
Q1 25
-2.5%
-30.0%
Q4 24
29.7%
-11.8%
Q3 24
22.0%
-9.2%
Q2 24
10.9%
-1.0%
Capex Intensity
CSL
CSL
IRM
IRM
Q1 26
2.7%
Q4 25
3.5%
28.0%
Q3 25
2.5%
29.9%
Q2 25
2.0%
32.5%
Q1 25
2.6%
42.4%
Q4 24
3.3%
39.1%
Q3 24
1.4%
25.4%
Q2 24
1.7%
25.9%
Cash Conversion
CSL
CSL
IRM
IRM
Q1 26
Q4 25
3.03×
5.37×
Q3 25
1.99×
3.10×
Q2 25
1.12×
Q1 25
0.01×
12.15×
Q4 24
2.28×
4.08×
Q3 24
1.28×
Q2 24
0.26×
11.04×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CSL
CSL

Segment breakdown not available.

IRM
IRM

Storage Rental$1.1B58%
Services$781.9M42%

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