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Side-by-side financial comparison of COMFORT SYSTEMS USA INC (FIX) and Zoetis (ZTS). 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 $2.4B, roughly 1.1× Zoetis). Zoetis runs the higher net margin — 25.3% vs 12.5%, a 12.8% gap on every dollar of revenue. On growth, COMFORT SYSTEMS USA INC posted the faster year-over-year revenue change (41.7% vs 3.0%). Zoetis produced more free cash flow last quarter ($732.0M vs $402.4M). Over the past eight quarters, COMFORT SYSTEMS USA INC's revenue compounded faster (31.2% CAGR vs 4.4%).
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.
Zoetis Inc. (/zō-EH-tis/) is an American drug company, the world's largest producer of medicine and vaccinations for pets and livestock. The company was a subsidiary of Pfizer, the world's largest drug maker, but with Pfizer's spinoff of its 83% interest in the firm it is now a completely independent company. The company directly markets its products in approximately 45 countries, and sells them in more than 100 countries. Operations outside the United States accounted for 50% of the total re...
FIX vs ZTS — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $2.6B | $2.4B |
| Net Profit | $330.8M | $603.0M |
| Gross Margin | 25.5% | 70.2% |
| Operating Margin | 16.1% | 31.9% |
| Net Margin | 12.5% | 25.3% |
| Revenue YoY | 41.7% | 3.0% |
| Net Profit YoY | 126.8% | 3.8% |
| EPS (diluted) | $9.35 | $1.37 |
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.
| Q4 25 | $2.6B | $2.4B | ||
| Q3 25 | $2.5B | $2.4B | ||
| Q2 25 | $2.2B | $2.5B | ||
| Q1 25 | $1.8B | $2.2B | ||
| Q4 24 | $1.9B | $2.3B | ||
| Q3 24 | $1.8B | $2.4B | ||
| Q2 24 | $1.8B | $2.4B | ||
| Q1 24 | $1.5B | $2.2B |
| Q4 25 | $330.8M | $603.0M | ||
| Q3 25 | $291.6M | $721.0M | ||
| Q2 25 | $230.8M | $718.0M | ||
| Q1 25 | $169.3M | $631.0M | ||
| Q4 24 | $145.9M | $581.0M | ||
| Q3 24 | $146.2M | $682.0M | ||
| Q2 24 | $134.0M | $624.0M | ||
| Q1 24 | $96.3M | $599.0M |
| Q4 25 | 25.5% | 70.2% | ||
| Q3 25 | 24.8% | 71.5% | ||
| Q2 25 | 23.5% | 73.6% | ||
| Q1 25 | 22.0% | 72.0% | ||
| Q4 24 | 23.2% | 69.5% | ||
| Q3 24 | 21.1% | 70.6% | ||
| Q2 24 | 20.1% | 71.7% | ||
| Q1 24 | 19.3% | 70.6% |
| Q4 25 | 16.1% | 31.9% | ||
| Q3 25 | 15.5% | 37.0% | ||
| Q2 25 | 13.8% | 36.7% | ||
| Q1 25 | 11.4% | 36.5% | ||
| Q4 24 | 12.1% | 31.6% | ||
| Q3 24 | 11.2% | 36.6% | ||
| Q2 24 | 10.2% | 33.0% | ||
| Q1 24 | 8.8% | 34.1% |
| Q4 25 | 12.5% | 25.3% | ||
| Q3 25 | 11.9% | 30.0% | ||
| Q2 25 | 10.6% | 29.2% | ||
| Q1 25 | 9.2% | 28.4% | ||
| Q4 24 | 7.8% | 25.1% | ||
| Q3 24 | 8.1% | 28.6% | ||
| Q2 24 | 7.4% | 26.4% | ||
| Q1 24 | 6.3% | 27.4% |
| Q4 25 | $9.35 | $1.37 | ||
| Q3 25 | $8.25 | $1.63 | ||
| Q2 25 | $6.53 | $1.61 | ||
| Q1 25 | $4.75 | $1.41 | ||
| Q4 24 | $4.08 | $1.29 | ||
| Q3 24 | $4.09 | $1.50 | ||
| Q2 24 | $3.74 | $1.37 | ||
| Q1 24 | $2.69 | $1.31 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $981.9M | — |
| Total DebtLower is stronger | $145.2M | — |
| Stockholders' EquityBook value | $2.4B | $3.3B |
| Total Assets | $6.4B | $15.5B |
| Debt / EquityLower = less leverage | 0.06× | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $981.9M | — | ||
| Q3 25 | $860.5M | $2.1B | ||
| Q2 25 | $331.7M | $1.4B | ||
| Q1 25 | $204.8M | $1.7B | ||
| Q4 24 | $549.9M | $2.0B | ||
| Q3 24 | $415.6M | $1.7B | ||
| Q2 24 | $199.4M | $1.6B | ||
| Q1 24 | $100.8M | $2.0B |
| Q4 25 | $145.2M | — | ||
| Q3 25 | $136.0M | — | ||
| Q2 25 | $73.0M | — | ||
| Q1 25 | $67.8M | — | ||
| Q4 24 | $68.3M | — | ||
| Q3 24 | $62.3M | — | ||
| Q2 24 | $73.4M | — | ||
| Q1 24 | $77.0M | — |
| Q4 25 | $2.4B | $3.3B | ||
| Q3 25 | $2.2B | $5.4B | ||
| Q2 25 | $2.0B | $5.0B | ||
| Q1 25 | $1.8B | $4.7B | ||
| Q4 24 | $1.7B | $4.8B | ||
| Q3 24 | $1.6B | $5.2B | ||
| Q2 24 | $1.5B | $5.0B | ||
| Q1 24 | $1.4B | $5.1B |
| Q4 25 | $6.4B | $15.5B | ||
| Q3 25 | $5.8B | $15.2B | ||
| Q2 25 | $5.1B | $14.5B | ||
| Q1 25 | $4.6B | $14.1B | ||
| Q4 24 | $4.7B | $14.2B | ||
| Q3 24 | $4.4B | $14.4B | ||
| Q2 24 | $4.2B | $14.2B | ||
| Q1 24 | $3.9B | $14.3B |
| Q4 25 | 0.06× | — | ||
| Q3 25 | 0.06× | — | ||
| Q2 25 | 0.04× | — | ||
| Q1 25 | 0.04× | — | ||
| Q4 24 | 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 | | |
|---|---|---|
| Operating Cash FlowLast quarter | $468.5M | $893.0M |
| Free Cash FlowOCF − Capex | $402.4M | $732.0M |
| FCF MarginFCF / Revenue | 15.2% | 30.7% |
| Capex IntensityCapex / Revenue | 2.5% | 6.7% |
| Cash ConversionOCF / Net Profit | 1.42× | 1.48× |
| TTM Free Cash FlowTrailing 4 quarters | $1.0B | $2.3B |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $468.5M | $893.0M | ||
| Q3 25 | $553.3M | $938.0M | ||
| Q2 25 | $252.5M | $486.0M | ||
| Q1 25 | $-88.0M | $587.0M | ||
| Q4 24 | $210.5M | $905.0M | ||
| Q3 24 | $302.2M | $951.0M | ||
| Q2 24 | $189.9M | $502.0M | ||
| Q1 24 | $146.6M | $595.0M |
| Q4 25 | $402.4M | $732.0M | ||
| Q3 25 | $517.9M | $805.0M | ||
| Q2 25 | $221.2M | $308.0M | ||
| Q1 25 | $-110.2M | $438.0M | ||
| Q4 24 | $169.8M | $689.0M | ||
| Q3 24 | $280.1M | $784.0M | ||
| Q2 24 | $166.5M | $370.0M | ||
| Q1 24 | $121.6M | $455.0M |
| Q4 25 | 15.2% | 30.7% | ||
| Q3 25 | 21.1% | 33.5% | ||
| Q2 25 | 10.2% | 12.5% | ||
| Q1 25 | -6.0% | 19.7% | ||
| Q4 24 | 9.1% | 29.7% | ||
| Q3 24 | 15.5% | 32.8% | ||
| Q2 24 | 9.2% | 15.7% | ||
| Q1 24 | 7.9% | 20.8% |
| Q4 25 | 2.5% | 6.7% | ||
| Q3 25 | 1.4% | 5.5% | ||
| Q2 25 | 1.4% | 7.2% | ||
| Q1 25 | 1.2% | 6.7% | ||
| Q4 24 | 2.2% | 9.3% | ||
| Q3 24 | 1.2% | 7.0% | ||
| Q2 24 | 1.3% | 5.6% | ||
| Q1 24 | 1.6% | 6.4% |
| Q4 25 | 1.42× | 1.48× | ||
| Q3 25 | 1.90× | 1.30× | ||
| Q2 25 | 1.09× | 0.68× | ||
| Q1 25 | -0.52× | 0.93× | ||
| Q4 24 | 1.44× | 1.56× | ||
| Q3 24 | 2.07× | 1.39× | ||
| Q2 24 | 1.42× | 0.80× | ||
| Q1 24 | 1.52× | 0.99× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
FIX
| Electrical Segment | $823.7M | 31% |
| Manufacturing Customer | $542.7M | 21% |
| Existing Building Construction | $491.4M | 19% |
| Healthcare Sector Customer | $220.8M | 8% |
| Service Projects | $153.0M | 6% |
| Education | $137.5M | 5% |
| Government Customer | $131.0M | 5% |
| Office Building Customer | $88.2M | 3% |
| Other Customer | $40.7M | 2% |
| Multi Family And Residential | $33.7M | 1% |
ZTS
| Other | $1.3B | 56% |
| Livestock | $234.0M | 10% |
| Pain Sedation | $209.0M | 9% |
| Other Pharmaceuticals | $188.0M | 8% |
| Swine | $125.0M | 5% |
| Poultry | $117.0M | 5% |
| Fish | $81.0M | 3% |
| Other Non Pharmaceuticals | $70.0M | 3% |
| Manufactured Product Other | $18.0M | 1% |
| Medicated Feed Additives | $12.0M | 1% |
