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Side-by-side financial comparison of Ametek (AME) and COMFORT SYSTEMS USA INC (FIX). Click either name above to swap in a different company.

COMFORT SYSTEMS USA INC is the larger business by last-quarter revenue ($2.6B vs $2.0B, roughly 1.3× Ametek). Ametek runs the higher net margin — 19.9% vs 12.5%, a 7.4% gap on every dollar of revenue. On growth, COMFORT SYSTEMS USA INC posted the faster year-over-year revenue change (41.7% vs 13.4%). Ametek produced more free cash flow last quarter ($527.3M vs $402.4M). Over the past eight quarters, COMFORT SYSTEMS USA INC's revenue compounded faster (31.2% CAGR vs 7.3%).

AMETEK, Inc. is an American multinational conglomerate and global designer and manufacturer of electronic instruments and electromechanical devices with headquarters in the United States and over 150 sites worldwide.

Comfort Systems USA, Inc. is an American company that provides mechanical and electrical contracting services, primarily HVAC, plumbing, piping and controls, off-site construction, monitoring and fire protection, and installation and servicing of electrical systems.

AME vs FIX — Head-to-Head

Bigger by revenue
FIX
FIX
1.3× larger
FIX
$2.6B
$2.0B
AME
Growing faster (revenue YoY)
FIX
FIX
+28.2% gap
FIX
41.7%
13.4%
AME
Higher net margin
AME
AME
7.4% more per $
AME
19.9%
12.5%
FIX
More free cash flow
AME
AME
$124.8M more FCF
AME
$527.3M
$402.4M
FIX
Faster 2-yr revenue CAGR
FIX
FIX
Annualised
FIX
31.2%
7.3%
AME

Income Statement — Q4 2025 vs Q4 2025

Metric
AME
AME
FIX
FIX
Revenue
$2.0B
$2.6B
Net Profit
$398.6M
$330.8M
Gross Margin
36.0%
25.5%
Operating Margin
25.3%
16.1%
Net Margin
19.9%
12.5%
Revenue YoY
13.4%
41.7%
Net Profit YoY
2.9%
126.8%
EPS (diluted)
$1.73
$9.35

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
AME
AME
FIX
FIX
Q4 25
$2.0B
$2.6B
Q3 25
$1.9B
$2.5B
Q2 25
$1.8B
$2.2B
Q1 25
$1.7B
$1.8B
Q4 24
$1.8B
$1.9B
Q3 24
$1.7B
$1.8B
Q2 24
$1.7B
$1.8B
Q1 24
$1.7B
$1.5B
Net Profit
AME
AME
FIX
FIX
Q4 25
$398.6M
$330.8M
Q3 25
$371.4M
$291.6M
Q2 25
$358.4M
$230.8M
Q1 25
$351.8M
$169.3M
Q4 24
$387.3M
$145.9M
Q3 24
$340.2M
$146.2M
Q2 24
$337.7M
$134.0M
Q1 24
$310.9M
$96.3M
Gross Margin
AME
AME
FIX
FIX
Q4 25
36.0%
25.5%
Q3 25
36.3%
24.8%
Q2 25
35.8%
23.5%
Q1 25
36.1%
22.0%
Q4 24
36.6%
23.2%
Q3 24
36.0%
21.1%
Q2 24
36.0%
20.1%
Q1 24
34.1%
19.3%
Operating Margin
AME
AME
FIX
FIX
Q4 25
25.3%
16.1%
Q3 25
25.8%
15.5%
Q2 25
26.0%
13.8%
Q1 25
26.3%
11.4%
Q4 24
26.6%
12.1%
Q3 24
26.1%
11.2%
Q2 24
25.8%
10.2%
Q1 24
24.0%
8.8%
Net Margin
AME
AME
FIX
FIX
Q4 25
19.9%
12.5%
Q3 25
19.6%
11.9%
Q2 25
20.2%
10.6%
Q1 25
20.3%
9.2%
Q4 24
22.0%
7.8%
Q3 24
19.9%
8.1%
Q2 24
19.5%
7.4%
Q1 24
17.9%
6.3%
EPS (diluted)
AME
AME
FIX
FIX
Q4 25
$1.73
$9.35
Q3 25
$1.60
$8.25
Q2 25
$1.55
$6.53
Q1 25
$1.52
$4.75
Q4 24
$1.67
$4.08
Q3 24
$1.47
$4.09
Q2 24
$1.45
$3.74
Q1 24
$1.34
$2.69

Balance Sheet & Financial Strength

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

Metric
AME
AME
FIX
FIX
Cash + ST InvestmentsLiquidity on hand
$458.0M
$981.9M
Total DebtLower is stronger
$2.3B
$145.2M
Stockholders' EquityBook value
$10.6B
$2.4B
Total Assets
$16.1B
$6.4B
Debt / EquityLower = less leverage
0.21×
0.06×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AME
AME
FIX
FIX
Q4 25
$458.0M
$981.9M
Q3 25
$439.2M
$860.5M
Q2 25
$619.7M
$331.7M
Q1 25
$399.0M
$204.8M
Q4 24
$374.0M
$549.9M
Q3 24
$396.3M
$415.6M
Q2 24
$396.6M
$199.4M
Q1 24
$373.8M
$100.8M
Total Debt
AME
AME
FIX
FIX
Q4 25
$2.3B
$145.2M
Q3 25
$136.0M
Q2 25
$73.0M
Q1 25
$67.8M
Q4 24
$2.1B
$68.3M
Q3 24
$62.3M
Q2 24
$73.4M
Q1 24
$77.0M
Stockholders' Equity
AME
AME
FIX
FIX
Q4 25
$10.6B
$2.4B
Q3 25
$10.5B
$2.2B
Q2 25
$10.4B
$2.0B
Q1 25
$10.0B
$1.8B
Q4 24
$9.7B
$1.7B
Q3 24
$9.6B
$1.6B
Q2 24
$9.3B
$1.5B
Q1 24
$9.0B
$1.4B
Total Assets
AME
AME
FIX
FIX
Q4 25
$16.1B
$6.4B
Q3 25
$16.2B
$5.8B
Q2 25
$15.3B
$5.1B
Q1 25
$14.9B
$4.6B
Q4 24
$14.6B
$4.7B
Q3 24
$14.8B
$4.4B
Q2 24
$14.8B
$4.2B
Q1 24
$14.9B
$3.9B
Debt / Equity
AME
AME
FIX
FIX
Q4 25
0.21×
0.06×
Q3 25
0.06×
Q2 25
0.04×
Q1 25
0.04×
Q4 24
0.22×
0.04×
Q3 24
0.04×
Q2 24
0.05×
Q1 24
0.06×

Cash Flow & Capital Efficiency

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

Metric
AME
AME
FIX
FIX
Operating Cash FlowLast quarter
$584.3M
$468.5M
Free Cash FlowOCF − Capex
$527.3M
$402.4M
FCF MarginFCF / Revenue
26.4%
15.2%
Capex IntensityCapex / Revenue
2.9%
2.5%
Cash ConversionOCF / Net Profit
1.47×
1.42×
TTM Free Cash FlowTrailing 4 quarters
$1.7B
$1.0B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AME
AME
FIX
FIX
Q4 25
$584.3M
$468.5M
Q3 25
$440.9M
$553.3M
Q2 25
$359.1M
$252.5M
Q1 25
$417.5M
$-88.0M
Q4 24
$550.0M
$210.5M
Q3 24
$487.2M
$302.2M
Q2 24
$381.4M
$189.9M
Q1 24
$410.2M
$146.6M
Free Cash Flow
AME
AME
FIX
FIX
Q4 25
$527.3M
$402.4M
Q3 25
$420.0M
$517.9M
Q2 25
$329.8M
$221.2M
Q1 25
$394.5M
$-110.2M
Q4 24
$498.3M
$169.8M
Q3 24
$460.9M
$280.1M
Q2 24
$360.0M
$166.5M
Q1 24
$382.6M
$121.6M
FCF Margin
AME
AME
FIX
FIX
Q4 25
26.4%
15.2%
Q3 25
22.2%
21.1%
Q2 25
18.5%
10.2%
Q1 25
22.8%
-6.0%
Q4 24
28.3%
9.1%
Q3 24
27.0%
15.5%
Q2 24
20.8%
9.2%
Q1 24
22.0%
7.9%
Capex Intensity
AME
AME
FIX
FIX
Q4 25
2.9%
2.5%
Q3 25
1.1%
1.4%
Q2 25
1.6%
1.4%
Q1 25
1.3%
1.2%
Q4 24
2.9%
2.2%
Q3 24
1.5%
1.2%
Q2 24
1.2%
1.3%
Q1 24
1.6%
1.6%
Cash Conversion
AME
AME
FIX
FIX
Q4 25
1.47×
1.42×
Q3 25
1.19×
1.90×
Q2 25
1.00×
1.09×
Q1 25
1.19×
-0.52×
Q4 24
1.42×
1.44×
Q3 24
1.43×
2.07×
Q2 24
1.13×
1.42×
Q1 24
1.32×
1.52×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AME
AME

Transferred At Point In Time$1.1B54%
Electronic Instruments Group$620.1M31%
Transferred Over Time$294.6M15%

FIX
FIX

Electrical Segment$823.7M31%
Manufacturing Customer$542.7M21%
Existing Building Construction$491.4M19%
Healthcare Sector Customer$220.8M8%
Service Projects$153.0M6%
Education$137.5M5%
Government Customer$131.0M5%
Office Building Customer$88.2M3%
Other Customer$40.7M2%
Multi Family And Residential$33.7M1%

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