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Side-by-side financial comparison of COMFORT SYSTEMS USA INC (FIX) and PACS Group, Inc. (PACS). 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 $1.4B, roughly 1.9× PACS Group, Inc.). COMFORT SYSTEMS USA INC runs the higher net margin — 12.5% vs 4.4%, a 8.1% gap on every dollar of revenue. On growth, COMFORT SYSTEMS USA INC posted the faster year-over-year revenue change (41.7% vs 18.4%). Over the past eight quarters, COMFORT SYSTEMS USA INC's revenue compounded faster (31.2% CAGR vs 20.5%).

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.

FIX vs PACS — Head-to-Head

Bigger by revenue
FIX
FIX
1.9× larger
FIX
$2.6B
$1.4B
PACS
Growing faster (revenue YoY)
FIX
FIX
+23.3% gap
FIX
41.7%
18.4%
PACS
Higher net margin
FIX
FIX
8.1% more per $
FIX
12.5%
4.4%
PACS
Faster 2-yr revenue CAGR
FIX
FIX
Annualised
FIX
31.2%
20.5%
PACS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
FIX
FIX
PACS
PACS
Revenue
$2.6B
$1.4B
Net Profit
$330.8M
$59.7M
Gross Margin
25.5%
Operating Margin
16.1%
7.0%
Net Margin
12.5%
4.4%
Revenue YoY
41.7%
18.4%
Net Profit YoY
126.8%
3022.5%
EPS (diluted)
$9.35
$0.42

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
FIX
FIX
PACS
PACS
Q4 25
$2.6B
$1.4B
Q3 25
$2.5B
$1.3B
Q2 25
$2.2B
$1.3B
Q1 25
$1.8B
$1.3B
Q4 24
$1.9B
$1.1B
Q3 24
$1.8B
$1.0B
Q2 24
$1.8B
$981.4M
Q1 24
$1.5B
$934.3M
Net Profit
FIX
FIX
PACS
PACS
Q4 25
$330.8M
$59.7M
Q3 25
$291.6M
$52.4M
Q2 25
$230.8M
$51.0M
Q1 25
$169.3M
$28.5M
Q4 24
$145.9M
$1.9M
Q3 24
$146.2M
$15.6M
Q2 24
$134.0M
$-10.9M
Q1 24
$96.3M
$49.1M
Gross Margin
FIX
FIX
PACS
PACS
Q4 25
25.5%
Q3 25
24.8%
Q2 25
23.5%
Q1 25
22.0%
Q4 24
23.2%
Q3 24
21.1%
17.1%
Q2 24
20.1%
22.3%
Q1 24
19.3%
21.2%
Operating Margin
FIX
FIX
PACS
PACS
Q4 25
16.1%
7.0%
Q3 25
15.5%
6.4%
Q2 25
13.8%
6.2%
Q1 25
11.4%
3.8%
Q4 24
12.1%
1.7%
Q3 24
11.2%
2.2%
Q2 24
10.2%
0.1%
Q1 24
8.8%
8.6%
Net Margin
FIX
FIX
PACS
PACS
Q4 25
12.5%
4.4%
Q3 25
11.9%
3.9%
Q2 25
10.6%
3.9%
Q1 25
9.2%
2.2%
Q4 24
7.8%
0.2%
Q3 24
8.1%
1.5%
Q2 24
7.4%
-1.1%
Q1 24
6.3%
5.3%
EPS (diluted)
FIX
FIX
PACS
PACS
Q4 25
$9.35
$0.42
Q3 25
$8.25
$0.32
Q2 25
$6.53
$0.31
Q1 25
$4.75
$0.17
Q4 24
$4.08
$-0.03
Q3 24
$4.09
$0.10
Q2 24
$3.74
$-0.07
Q1 24
$2.69
$0.38

Balance Sheet & Financial Strength

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

Metric
FIX
FIX
PACS
PACS
Cash + ST InvestmentsLiquidity on hand
$981.9M
$197.0M
Total DebtLower is stronger
$145.2M
$353.2M
Stockholders' EquityBook value
$2.4B
$946.8M
Total Assets
$6.4B
$5.6B
Debt / EquityLower = less leverage
0.06×
0.37×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FIX
FIX
PACS
PACS
Q4 25
$981.9M
$197.0M
Q3 25
$860.5M
$355.7M
Q2 25
$331.7M
$294.2M
Q1 25
$204.8M
$287.5M
Q4 24
$549.9M
$157.7M
Q3 24
$415.6M
$49.5M
Q2 24
$199.4M
$73.4M
Q1 24
$100.8M
$81.2M
Total Debt
FIX
FIX
PACS
PACS
Q4 25
$145.2M
$353.2M
Q3 25
$136.0M
Q2 25
$73.0M
Q1 25
$67.8M
Q4 24
$68.3M
$411.9M
Q3 24
$62.3M
Q2 24
$73.4M
Q1 24
$77.0M
Stockholders' Equity
FIX
FIX
PACS
PACS
Q4 25
$2.4B
$946.8M
Q3 25
$2.2B
$871.3M
Q2 25
$2.0B
$806.8M
Q1 25
$1.8B
$750.2M
Q4 24
$1.7B
$709.6M
Q3 24
$1.6B
$660.0M
Q2 24
$1.5B
$572.1M
Q1 24
$1.4B
$128.0M
Total Assets
FIX
FIX
PACS
PACS
Q4 25
$6.4B
$5.6B
Q3 25
$5.8B
$5.6B
Q2 25
$5.1B
$5.5B
Q1 25
$4.6B
$5.5B
Q4 24
$4.7B
$5.2B
Q3 24
$4.4B
$4.5B
Q2 24
$4.2B
$3.9B
Q1 24
$3.9B
$3.9B
Debt / Equity
FIX
FIX
PACS
PACS
Q4 25
0.06×
0.37×
Q3 25
0.06×
Q2 25
0.04×
Q1 25
0.04×
Q4 24
0.04×
0.58×
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
FIX
FIX
PACS
PACS
Operating Cash FlowLast quarter
$468.5M
$-3.4M
Free Cash FlowOCF − Capex
$402.4M
FCF MarginFCF / Revenue
15.2%
Capex IntensityCapex / Revenue
2.5%
Cash ConversionOCF / Net Profit
1.42×
-0.06×
TTM Free Cash FlowTrailing 4 quarters
$1.0B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FIX
FIX
PACS
PACS
Q4 25
$468.5M
$-3.4M
Q3 25
$553.3M
$204.8M
Q2 25
$252.5M
$52.6M
Q1 25
$-88.0M
$150.2M
Q4 24
$210.5M
$64.6M
Q3 24
$302.2M
$209.2M
Q2 24
$189.9M
$34.8M
Q1 24
$146.6M
$58.8M
Free Cash Flow
FIX
FIX
PACS
PACS
Q4 25
$402.4M
Q3 25
$517.9M
Q2 25
$221.2M
Q1 25
$-110.2M
Q4 24
$169.8M
Q3 24
$280.1M
Q2 24
$166.5M
Q1 24
$121.6M
FCF Margin
FIX
FIX
PACS
PACS
Q4 25
15.2%
Q3 25
21.1%
Q2 25
10.2%
Q1 25
-6.0%
Q4 24
9.1%
Q3 24
15.5%
Q2 24
9.2%
Q1 24
7.9%
Capex Intensity
FIX
FIX
PACS
PACS
Q4 25
2.5%
Q3 25
1.4%
Q2 25
1.4%
Q1 25
1.2%
Q4 24
2.2%
Q3 24
1.2%
Q2 24
1.3%
Q1 24
1.6%
Cash Conversion
FIX
FIX
PACS
PACS
Q4 25
1.42×
-0.06×
Q3 25
1.90×
3.91×
Q2 25
1.09×
1.03×
Q1 25
-0.52×
5.28×
Q4 24
1.44×
33.78×
Q3 24
2.07×
13.39×
Q2 24
1.42×
Q1 24
1.52×
1.20×

Financial Flow Comparison

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

Revenue Breakdown by Segment

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%

PACS
PACS

Segment breakdown not available.

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