olivLaw · US equity research
Comfort Systems USA, Inc. FIX
Electrical Work · SIC 1731 · Vertical: Electrical Work (SIC 1731)
Comfort Systems USA is a US mechanical and electrical contractor for large buildings, larger than most of its competitors. It matters now because backlog rose to 17.81 bn USD, nearly double a year earlier, and the technology sector, which includes data centers, accounted for 45.0% of 2025 revenue.
At the close of 04 Nov 2026, Comfort Systems USA, Inc. (FIX) stock was 1,091.31 USD (−15.08% on the day), with market capitalisation 38.2 bn USD, P/E 23.6 on diluted EPS of 46.32 USD over the last 12 months, dividend yield 0.27%, beta 1.99, 52-week range 876.19–2,066.51 USD. Latest reported quarter (Q3 2026): revenue of 3.8 bn USD (+53.7% YoY), net income of 489.0 m USD (+67.7% YoY), diluted EPS 13.91 USD.
Data as of · AI analysis dated · Source: SEC filings and closing prices, computed by olivLaw.
Price history
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Technical reading
- RSI (14)
- 31.0
- weak (30–45)
- Bollinger (20, 2)
- 1,039.38 – 1,747.17
- in the lower half of the band · %B 0.07 · band width 50.8%
- SMA 50 / 200
- 1,536.64 / 1,606.73
- downtrend (price < SMA50 < SMA200)
- MACD (12, 26, 9)
- -113.71 / -95.79
- MACD below signal
Indicators describe past prices; on their own they do not predict direction. On our history the RSI ≤ 40 filter added no return (see the signals methodology).
Performance
| Company | S&P 500 | vs S&P 500 | Vertical median | |
|---|---|---|---|---|
| 1 month | −36.3% | −1.1% | −35.2 pp | — |
| 3 months | −37.2% | −0.5% | −36.7 pp | — |
| 6 months | −45.7% | +4.4% | −50.1 pp | — |
| Year to date | +16.9% | +12.3% | +4.6 pp | — |
| 1 year | +14.2% | +13.5% | +0.6 pp | +14.4% |
| 3 years | +481.1% | +76.4% | +404.7 pp | +208.2% |
| 5 years | +1,002.1% | +63.7% | +938.4 pp | — |
Price returns, dividends excluded.
Quarterly results
Latest quarter: Q3 2026 · 30 Sept 2026
Quarterly margins
Quarterly statements · USD
| Fiscal year | Q4 '24 | Q1 '25 | Q2 '25 | Q3 '25 | Q4 '25 | Q1 '26 | Q2 '26 | Q3 '26 |
|---|---|---|---|---|---|---|---|---|
| Revenue | 1.9 bn | 1.8 bn | 2.2 bn | 2.5 bn | 2.6 bn | 2.9 bn | 3.3 bn | 3.8 bn |
| Cost of revenue | 1.4 bn | 1.4 bn | 1.7 bn | 1.8 bn | 2.0 bn | 2.1 bn | 2.4 bn | 2.8 bn |
| Gross profit | 433.7 m | 403.4 m | 509.9 m | 607.9 m | 674.7 m | 754.4 m | 844.2 m | 934.5 m |
| SG&A | 207.6 m | 194.9 m | 210.5 m | 229.6 m | 248.4 m | 269.0 m | 287.0 m | 314.2 m |
| Operating income | 226.4 m | 209.1 m | 299.9 m | 378.9 m | 426.7 m | 485.7 m | 558.0 m | 624.6 m |
| Interest expense | 1.6 m | 1.6 m | 1.6 m | 3.0 m | 2.8 m | 2.2 m | 1.4 m | 1.5 m |
| Pre-tax income | 186.0 m | 208.0 m | 296.5 m | 370.5 m | 418.5 m | 482.1 m | 566.2 m | 635.1 m |
| Income tax | 40.2 m | 38.7 m | 65.6 m | 78.8 m | 87.7 m | 111.8 m | 124.6 m | 146.0 m |
| Net income | 145.9 m | 169.3 m | 230.8 m | 291.6 m | 330.8 m | 370.4 m | 441.6 m | 489.0 m |
| Diluted EPS | 4.09 ≈ | 4.75 | 6.53 | 8.25 | 9.37 ≈ | 10.51 | 12.53 | 13.91 |
| Operating cash flow | 210.5 m | -88.0 m | 252.5 m ≈ | 553.3 m ≈ | 468.5 m | 388.8 m | 1.1 bn ≈ | 1.0 bn ≈ |
| Capex | 40.7 m | 22.2 m | 31.3 m ≈ | 35.3 m ≈ | 66.1 m | 147.5 m | 141.4 m ≈ | 210.6 m ≈ |
| Dividends paid | 12.4 m | 14.2 m | 15.9 m ≈ | 17.6 m ≈ | 21.2 m | 24.6 m | 28.2 m ≈ | 31.6 m ≈ |
| Share repurchases | 15.9 m | 91.4 m | 19.9 m ≈ | 13.1 m ≈ | 91.6 m | 2.5 m | 5.7 m ≈ | 337.9 m ≈ |
≈ derived quarter (cumulative difference / share-days average)
E/P over time
E/P = trailing-12-month diluted EPS / price at quarter end. E/P is the inverse of P/E and stays defined when earnings are negative.
Today's P/E sits at the 66 percentile of its own 44-quarter history (min 11.8, median 21.6, max 48.7; quarters with earnings only).
Fiscal years
| Fiscal year | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|
| Revenue | 2.2 bn | 2.6 bn | 2.9 bn | 3.1 bn | 4.1 bn | 5.2 bn | 7.0 bn | 9.1 bn |
| Revenue YoY | +22.1% | +19.8% | +9.2% | +7.6% | +34.7% | +25.8% | +35.0% | +29.5% |
| Net income | 112.9 m | 114.3 m | 150.1 m | 143.3 m | 245.9 m | 323.4 m | 522.4 m | 1.0 bn |
| Net income YoY | +104.3% | +1.3% | +31.3% | −4.5% | +71.6% | +31.5% | +61.5% | +95.7% |
| Diluted EPS | 3.00 | 3.08 | 4.09 | 3.93 | 6.82 | 9.01 | 14.60 | 28.88 |
| Diluted EPS YoY | +104.1% | +2.7% | +32.8% | −3.9% | +73.5% | +32.1% | +62.0% | +97.8% |
| net % | 5.2% | 4.4% | 5.3% | 4.7% | 5.9% | 6.2% | 7.4% | 11.2% |
| Free cash flow | 119.9 m | 110.3 m | 262.4 m | 157.8 m | 253.2 m | 544.7 m | 738.0 m | 1.0 bn |
Reported results vs expectations
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Balance sheet & financial health
Fiscal year 2025 · 31 Dec 2025
- Cash
- 981.9 m USD
- Financial debt
- 145.2 m USD
- Net debt
- -836.7 m USD
- Equity
- 2.4 bn USD
- Total assets
- 6.4 bn USD
- Debt / equity
- 0.06x
- Current ratio
- 1.21x
- ROE
- 49.2%
- ROA
- 18.3%
- FCF margin
- 11.3%
Financial statements (source on every figure)
Revenue and net income (USD)
Margins
Income statement · USD
| Line | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | Source (latest year) |
|---|---|---|---|---|---|---|---|
| Revenue | 2.9 bn | 3.1 bn | 4.1 bn | 5.2 bn | 7.0 bn | 9.1 bn | SEC (XBRL)· 19 Feb 2026verified |
| Cost of revenue | 2.3 bn | 2.5 bn | 3.4 bn | 4.2 bn | 5.6 bn | 6.9 bn | SEC (XBRL)· 19 Feb 2026verified |
| Gross profit | 547.0 m | 563.2 m | 741.6 m | 990.5 m | 1.5 bn | 2.2 bn | SEC (XBRL)· 19 Feb 2026verified |
| SG&A | 357.8 m | 376.3 m | 489.3 m | 574.4 m | 730.1 m | 883.3 m | SEC (XBRL)· 19 Feb 2026verified |
| Operating income | 190.7 m | 188.4 m | 253.8 m | 418.4 m | 749.4 m | 1.3 bn | SEC (XBRL)· 19 Feb 2026verified |
| Depreciation & amortisation | 27.9 m | 28.4 m | 33.6 m | 38.2 m | 48.2 m | 62.4 m | SEC (XBRL)· 19 Feb 2026verified |
| EBITDA | 218.6 m ≈ | 216.8 m ≈ | 287.4 m ≈ | 456.6 m ≈ | 797.6 m ≈ | 1.4 bn ≈ | SEC (XBRL)· 19 Feb 2026derived |
| Interest expense | 8.4 m | 6.2 m | 13.4 m | 10.3 m | 6.6 m | 9.0 m | SEC (XBRL)· 19 Feb 2026verified |
| Pre-tax income | 191.5 m | 190.3 m | 235.9 m | 388.2 m | 666.6 m | 1.3 bn | SEC (XBRL)· 19 Feb 2026verified |
| Income tax | 41.4 m | 46.9 m | -10.1 m | 64.8 m | 144.1 m | 270.9 m | SEC (XBRL)· 19 Feb 2026verified |
| Net income | 150.1 m | 143.3 m | 245.9 m | 323.4 m | 522.4 m | 1.0 bn | SEC (XBRL)· 19 Feb 2026verified |
| Diluted EPS | 4.09 | 3.93 | 6.82 | 9.01 | 14.60 | 28.88 | SEC (XBRL)· 19 Feb 2026verified |
| Weighted average diluted shares | 36.7 m | 36.5 m | 36.0 m | 35.9 m | 35.8 m | 35.4 m | SEC (XBRL)· 19 Feb 2026verified |
| Dividend per share | 0.43 | 0.48 | 0.56 | 0.85 | 1.20 | 1.95 | SEC (XBRL)· 19 Feb 2026verified |
≈ computed by olivLaw from the reported lines of the same year: Operating income + Depreciation & amortisation.
Balance sheet · USD
| Line | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | Source (latest year) |
|---|---|---|---|---|---|---|---|
| Cash | 54.9 m | 58.8 m | 57.2 m | 205.2 m | 549.9 m | 981.9 m | SEC (XBRL)· 19 Feb 2026verified |
| Inventories | 13.5 m | 21.9 m | 35.3 m | 65.5 m | 59.2 m | 84.1 m | SEC (XBRL)· 19 Feb 2026verified |
| Current assets | 811.9 m | 1.0 bn | 1.3 bn | 1.9 bn | 2.8 bn | 4.1 bn | SEC (XBRL)· 19 Feb 2026verified |
| Property, plant & equipment, net | 117.2 m | 128.6 m | 143.9 m | 208.6 m | 277.2 m | 388.0 m | SEC (XBRL)· 19 Feb 2026verified |
| Goodwill | 464.4 m | 592.1 m | 611.8 m | 666.8 m | 875.3 m | 1.0 bn | SEC (XBRL)· 19 Feb 2026verified |
| Intangibles (excl. goodwill) | 231.8 m | 304.8 m | 273.9 m | 280.4 m | 434.4 m | 485.2 m | SEC (XBRL)· 19 Feb 2026verified |
| Total assets | 1.8 bn | 2.2 bn | 2.6 bn | 3.3 bn | 4.7 bn | 6.4 bn | SEC (XBRL)· 19 Feb 2026verified |
| Accounts payable | 204.1 m | 254.8 m | 337.4 m | 420.0 m | 654.9 m | 696.3 m | SEC (XBRL)· 19 Feb 2026verified |
| Short-term debt | — | 2.8 m | 9.0 m | 4.9 m | 6.0 m | 6.2 m | SEC (XBRL)· 19 Feb 2026verified |
| Long-term debt | 235.7 m | 385.2 m | 247.2 m | 39.3 m | 62.3 m | 139.1 m | SEC (XBRL)· 19 Feb 2026verified |
| Current liabilities | 692.9 m | 836.6 m | 1.2 bn | 1.7 bn | 2.6 bn | 3.4 bn | SEC (XBRL)· 19 Feb 2026verified |
| Total liabilities | 1.1 bn | 1.4 bn | 1.6 bn | 2.0 bn | 3.0 bn | 4.0 bn | SEC (XBRL)· 19 Feb 2026verified |
| Equity | 696.4 m † | 805.7 m † | 999.9 m † | 1.3 bn † | 1.7 bn † | 2.4 bn † | SEC (XBRL)· 19 Feb 2026verified |
† equity attributable to the parent's shareholders: in these years the issuer no longer reports the total including non-controlling interests.
Cash flow · USD
| Line | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | Source (latest year) |
|---|---|---|---|---|---|---|---|
| Operating cash flow | 286.5 m | 180.2 m | 301.5 m | 639.6 m | 849.1 m | 1.2 bn | SEC (XBRL)· 19 Feb 2026verified |
| Capex | 24.1 m | 22.3 m | 48.4 m | 94.8 m | 111.1 m | 154.9 m | SEC (XBRL)· 19 Feb 2026verified |
| Free cash flow | 262.4 m ≈ | 157.8 m ≈ | 253.2 m ≈ | 544.7 m ≈ | 738.0 m ≈ | 1.0 bn ≈ | SEC (XBRL)· 19 Feb 2026derived |
| Investing cash flow | -207.8 m | -246.7 m | -97.2 m | -193.0 m | -343.5 m | -467.3 m | SEC (XBRL)· 19 Feb 2026verified |
| Financing cash flow | -74.6 m | 70.5 m | -205.9 m | -298.6 m | -160.8 m | -287.1 m | SEC (XBRL)· 19 Feb 2026verified |
| Dividends paid | 15.5 m | 17.4 m | 20.1 m | 30.4 m | 42.8 m | 68.8 m | SEC (XBRL)· 19 Feb 2026verified |
| Share repurchases | 30.1 m | 27.1 m | 38.2 m | 21.2 m | 57.9 m | 216.0 m | SEC (XBRL)· 19 Feb 2026verified |
≈ computed by olivLaw from the reported lines of the same year: Operating cash flow − Capex.
Computed indicators
Growth
Profitability
Returns
Balance sheet
Liquidity
Cash
Efficiency
Market and valuation
Risk
Valuation
olivLaw classification
Score: 73 / 100
A scoring methodology on indicators and valuation, not investment advice.
Closing price
04 Nov 2026Source: olivLaw, closing series
Market cap: 38.2 bn USD
Key indicators
Coverage and freshness
Score by group
- Balance sheet86
- Growth100
- Quality100
- Returns52
- Valuation33
Estimated value range
The combined range = the median of the valid methods' low, central and high values; it is not a probability interval and does not cover every result. Envelope of all methods: 603.11 – 1,818.95 USD.
Methods computed but outside the aggregate range: Dividend discount (DDM) (a small share of earnings is paid as dividends (capital returns through buybacks): the dividend model does not describe the value and stays outside the aggregate).
Valuation assumptions are editorial choices, not measured; beta is not measured.
Method ranges (USD per share)
— — Mid · ▏ Price
Valuation methods
- DCF (discounted cash flow)1,213.42 – 1,818.95 (Mid 1,449.80)WACC 9.3% · starting FCFF 2.4 bn USD · terminal value share of EV 74%The WACC × g sensitivity gives the method's bounds; these are not probabilities.Reverse DCF: starting growth implied by the price (fading linearly to terminal growth, everything else fixed): 1.5%
- Peers: EV/EBITDAunavailable · not enough peers
- Peers: P/E603.11 – 1,645.28 (Mid 855.08)3 companies used · median multiple 18.5x · quartiles 13.0x – 35.5xEME, IESC, PWR
- Dividend discount (DDM)outside the aggregate25.63 – 34.46 (Mid 29.39)a small share of earnings is paid as dividends (capital returns through buybacks): the dividend model does not describe the value and stays outside the aggregate
Classification (SIC) comparables group by industry code, not by economic activity; the direct group is an editorial selection by activity. Members' multiples are on their own trailing twelve months, at their own latest close.
Assumptions (illustrative, editorial)
- Risk-free rate
- 4.3%
- Equity risk premium
- 5.0%
- Beta (default)
- 1.00
- Cost of equity
- 9.3%
- Terminal growth
- 2.5%
Factor scorecard
Neutral profile · Score 73/100
| Factor | Value | Score | Weight used |
|---|---|---|---|
| ROIC · Quality | 118.9% | 100 (on a fixed band) | 10% |
| Net margin · Quality | 13.0% | 100 (vs peers) | 6% |
| FCF conversion · Quality | 149.6% | 100 (on a fixed band) | 6% |
| Revenue CAGR 3Y · Growth | 30.0% | 100 (on a fixed band) | 8% |
| EPS CAGR 3Y · Growth | 61.8% | 100 (on a fixed band) | 8% |
| Net debt / EBITDA · Balance sheet | -1.0x | 100 (on a fixed band) | 10% |
| Interest coverage · Balance sheet | 264.9x | 100 (on a fixed band) | 6% |
| Current ratio · Balance sheet | 1.1x | 29 (on a fixed band) | 4% |
| P/E (TTM) · Valuation | 23.6x | 29 (on a fixed band) | 10% |
| EV/EBITDA · Valuation | 16.7x | 0 (on a fixed band) | 10% |
| FCF yield · Valuation | 6.4% | 80 (on a fixed band) | 8% |
| Shareholder yield (distributions) · Returns | 1.4% | 20 (on a fixed band) | 6% |
| Payout ratio (FCF) · Returns | 4.3% | 100 (on a fixed band) | 4% |
Score groups
- Balance sheet86/100 · 3/3 factors with a value
- Growth100/100 · 2/2 factors with a value
- Quality100/100 · 3/3 factors with a value
- Returns52/100 · 2/2 factors with a value
- Valuation33/100 · 3/3 factors with a value
Memo
COMFORT SYSTEMS USA, INC. (FIX). Latest full fiscal year: 2025; data up to 2026-09-30.
Figures computed from the financial statements: revenue 9.1 bn USD in 2025; YoY growth 29.5%; net margin 13.0%; ROE 58.6%; net debt/EBITDA -1.0x.
The estimated value range is 908.27–1,732.12 USD per share (median of 2 methods, agreement: low); assumptions are illustrative. Against the central value of 1,152.44 USD, the price of 1,091.31 USD leaves a potential of 5.6% (value / price − 1) and a margin of safety of 5.3% (1 − price / value). The range is the median of the methods' low, central and high values, not a probability interval.
olivLaw score 73/100, methodological classification: neutral profile (score, margin of safety and method agreement together; not a judgement of the right price). Not investment advice.
Text generated deterministically from the figures shown; no language model. Not investment advice.
What supports the thesis
- ROIC: 118.9%
- Net margin: 13.0%
- FCF conversion: 149.6%
- Revenue CAGR 3Y: 30.0%
- EPS CAGR 3Y: 61.8%
- Net debt / EBITDA: -1.0x
- Interest coverage: 264.9x
- FCF yield: 6.4%
- Payout ratio (FCF): 4.3%
What contradicts it
- Current ratio: 1.1x
- P/E (TTM): 23.6x
- EV/EBITDA: 16.7x
- Shareholder yield (distributions): 1.4%
- The valuation methods diverge
Versus the vertical median
Electrical Work (SIC 1731) · same industry (4-digit SIC) · compared with 5 companies
The size band was not applied: too few companies would have remained; the vertical includes much smaller or larger companies.
Multiples and returns vs the median
Price rebased to 100 (monthly, 5 years)
Companies in the vertical
| Market cap | P/E | ROE | Net margin | Revenue YoY | 1A / 3A | |
|---|---|---|---|---|---|---|
| PWRQuanta Services, Inc. | 87.5 bn | 52.6 | 17.8% | 4.5% | +20.3% | +25% / +208% |
| FIXComfort Systems USA, Inc. | 38.2 bn | 23.6 | 58.6% | 13.0% | +29.5% | +14% / +481% |
| EMEEMCOR Group, Inc. | 28.0 bn | 18.5 | 40.6% | 7.8% | +16.6% | +4% / +201% |
| IESCIES Holdings, Inc. | 3.4 bn | 7.6 | 45.0% | 11.3% | +16.9% | −19% / +383% |
| MAGHMagnitude International Ltd | 236.6 m | 6,760.0 | 7.2% | 0.3% | unavailable | unavailable / unavailable |
| ENGSEnergys Group Ltd | 64.6 m | — | -139.3% | -30.1% | unavailable | +287% / unavailable |
1- and 3-year price returns: for FIX from daily closes (the same as the performance table), for the other companies from month-end closes.
olivLaw engine forecast
The world engine ran after the company's latest material disclosure. Probabilities are of TOUCHING a level within the horizon (not closing there) and sit next to the random walk (p_rw), the no-information benchmark.
Valuation scenarios (editable assumptions)
Illustrative scenarios
Illustrative: not forecasts and without probabilities. Each case is one coherent set of assumptions, computed on today's figures.
Estimated price (USD)
| Estimated price | Bear | Base | Bull |
|---|---|---|---|
| 1 years | 718.15 Total return -34% · Per year -34% | 1,263.84 Total return 16% · Per year 16% | 1,895.76 Total return 74% · Per year 74% |
| 3 years | 851.84 Total return -21% · Per year -8% | 1,671.43 Total return 54% · Per year 16% | 2,729.89 Total return 152% · Per year 36% |
| 5 years | 1,010.42 Total return -6% · Per year -1% | 2,210.46 Total return 105% · Per year 15% | 3,931.05 Total return 263% · Per year 29% |
- Exit P/E± 417.86
- Net margin± 292.50
- Annual revenue growth± 218.15
- Annual dilution± 24.58
AI analysis
AI-generatedAI-generated analysis (Claude) from cited public sources; it may contain errors. Not investment advice. As of 26 Oct 2026 · Model: claude-sonnet-5-5.
In brief
Comfort Systems USA is a US mechanical and electrical contractor for large buildings, larger than most of its competitors 2. It matters now because backlog rose to 17.81 bn USD 1, nearly double a year earlier, and the technology sector, which includes data centers, accounted for 45.0% of 2025 revenue 2.
SWOT
Strengths
Weaknesses
- Growth concentrated in a few sectors, especially data centers.
- Project-based contracts, with cost-overrun risk on complex jobs.
- Dependence on skilled staff that is hard to recruit.
Opportunities
- Expansion of the electrical segment, which grew 61.9% in 2025 2.
- More prefabrication, where short schedules can become a competitive edge.
- Acquisitions funded by accumulated cash.
- New factories (semiconductors, batteries, pharmaceuticals) as a second demand engine.
Threats
- A slowdown in data-center capital spending could compress backlog.
- High interest rates or tighter financing for developers.
- Power-grid and equipment constraints that delay projects.
- A high valuation: any disappointment on backlog or margin could move the stock sharply.
Risks
- Data-center concentrationhigh
The technology sector, which includes data centers, accounted for 45.0% of 2025 revenue 2. If big platforms cut or defer investment, projects could slip or be cancelled and revenue growth would slow.
- Execution and cost overrunsmedium
Large fixed-price or capped-price projects can lose money if materials or labor cost more than estimated. A gross margin of 24.8% 1 leaves little room for repeated errors.
- Labor supplyhigh
Rapid volume growth requires hiring and training electricians and pipefitters in a tight labor market, which could mean higher costs or missed schedules.
- Acquisition integrationmedium
New subsidiaries may fall short of expectations or dilute operating culture. Overpaying in high-valuation periods is a recurring risk of the strategy.
- Macro cycle and interest ratesmedium
Nonresidential construction reacts with a lag to rates and credit conditions. A recession would hit commercial and industrial projects outside data centers.
Investment thesis
What would need to be true (bull case)
What would break the thesis
- Big technology platforms cut data-center spending and backlog declines.
- Labor and material costs erode margins on already-contracted projects.
- An already high valuation leaves little room for disappointment.
- One large troubled project visibly hurts a quarter's results.
What to watch
- Total and same-store backlog in the Q4 reportQ4 2026
- Gross and operating margin versus 24.8% and 16.6% in Q3Q4 2026
- Annual report and management comments on 2027Q1 2027
- Data-center investment announcements from large platformsongoing
- New acquisitions and integration progress2027
Products, market & competition
AI-generatedAI-generated analysis (Claude) from cited public sources; it may contain errors. Not investment advice. As of 26 Oct 2026 · Model: claude-sonnet-5-5.
The business
The company designs, installs and services heating, ventilation and air-conditioning (HVAC), plumbing, piping, controls, fire protection and electrical systems through autonomous local subsidiaries. It had 50 operating locations at the end of 2025, up from 47 a year earlier 2.
Customers are developers and operators of large projects: data centers, factories (semiconductors, pharmaceuticals, batteries), hospitals, universities and commercial buildings. Contracts are typically project-based, with a steady gross margin of 24.8% in the third quarter 1.
Revenue in 2025 was 9.10 bn USD and net income was 1.02 bn USD 2. In the first nine months of 2026 revenue reached 9.90 bn USD, versus 6.46 bn USD in the same period of 2025 1.
Segments
Mechanical
Covers HVAC, plumbing, piping, controls, off-site (prefabricated) construction and fire protection. It generated 6.67 bn USD in 2025, or 73% of revenue, growing 20.7% 2. It also includes service work, which is steadier than new projects.
Electrical
Installation and servicing of electrical systems, especially for data centers and industry. It generated 2.43 bn USD in 2025, or 27% of revenue, growing 61.9% 2. It is the fastest-growing segment, though from a smaller base.
Market context
Demand comes largely from technology companies' capital spending on data centers and from the reshoring of manufacturing to the US. A large data center needs heavy cooling and electrical capacity, exactly what the company installs, so an important share of project value reaches contractors like it.
The nonresidential construction cycle is sensitive to interest rates and financing access, but the 17.81 bn USD backlog 1 gives visibility over several quarters. The practical limit to growth is skilled labor (electricians, pipefitters), not the number of available projects.
Trends
- AI data centerstailwind
Backlog grew from 14.06 bn USD to 17.81 bn USD in a single quarter and from 9.38 bn USD a year earlier 1. Management credits relentless demand and the firm's reputation, without a sector breakdown in the release; in 2025 the technology sector accounted for 45.0% of revenue 2. If big platform spending stays high the pace could continue; if it pauses, projects could slip.
- Prefabrication and off-site constructiontailwind
The mechanical segment includes off-site construction, which shortens schedules and reduces reliance on field labor. Firms with prefabrication capacity can win large projects over smaller rivals.
- Consolidation through acquisitionsmixed
The company added locations through acquisitions, reaching 50 operating locations at the end of 2025 2. Deals add capacity and geographic reach but carry integration risk and the chance of overpaying.
- Labor shortages and costsheadwind
Growing volumes require hiring skilled staff. Operating margin rose to 16.6% in the third quarter from 15.5% 1, but wage pressure and staffing shortages could limit execution speed.
Competitive position
The mechanical and electrical contracting market is fragmented, with thousands of regional firms. Comfort Systems stands out through the financial capacity to take on multi-billion-dollar projects, its balance sheet (cash of 2.16 bn USD 1) and its execution reputation with large customers.
The main listed competitors are infrastructure and electrical contractors with data-center exposure. Competition shows up mainly in hiring labor and in selection by customers who can choose among few contractors capable at scale.
- EMCOR GroupEME
Mechanical and electrical contractor with larger revenue, strong in data centers and service.
- Quanta ServicesPWR
Much larger, focused on electric grids but also present in data-center infrastructure.
- IES HoldingsIESC
Electrical and infrastructure contractor with data-center exposure.
- MYR GroupMYRG
Specialized in electric grid construction and commercial work.
- APi GroupAPG
Fire safety, HVAC and inspections, with a service-oriented model.
Links, dependencies and risks
Who the company is tied to, from its own SEC filings (customers, suppliers, production, partners, competitors, countries, regulation), from the 5 %+ holders' statements (13D/13G) and from what other companies say about it. Click a node for its evidence; on a listed company the graph moves to it.
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News & filings
In the press
- Comfort Systems USA (FIX) Positioned to Benefit from Accelerated AI InvestmentYahoo Finance — News · 16 Sept 2026 · EN
- Artisan Added Comfort Systems USA (FIX) as Data Center Demand AcceleratesYahoo Finance — News · 08 Sept 2026 · EN
The latest news item in our archive is from 16 Sept 2026; the newest SEC filing is from 28 Oct 2026. The press archive comes from the RSS feeds we follow and does not necessarily cover the latest event — the filings alongside do.
SEC filings
- Current report28 Oct 2026Regulation FD disclosure · Financial statements and exhibits
- Quarterly report22 Oct 2026
- Current report22 Oct 2026Results of operations · Other events · Financial statements and exhibits
- Current report22 Oct 2026Departure or appointment of officers · Regulation FD disclosure · Financial statements and exhibits
- Current report03 Aug 2026Regulation FD disclosure · Financial statements and exhibits
- Quarterly report23 Jul 2026
- Current report23 Jul 2026Results of operations · Other events · Financial statements and exhibits
- Current report22 Jun 2026Departure or appointment of officers · Regulation FD disclosure · Financial statements and exhibits
- Current report21 May 2026Shareholder vote
- Current report01 May 2026Regulation FD disclosure · Financial statements and exhibits
Sources
- [1] Comunicat de rezultate Q3 2026 (anexa la Form 8-K) · SEC / Comfort Systems USA · 22 Oct 2026
- [2] Form 10-K 2025 · SEC / Comfort Systems USA · 26 Feb 2026
- [3] Comunicat de rezultate Q1 2026 (anexa la Form 8-K) · SEC / Comfort Systems USA · 23 Apr 2026
Figures computed by olivLaw from SEC filings and closing prices; the qualitative analysis is AI-generated from cited sources. Not investment advice.