How Comfort Systems USA makes money

Period

FY2025

How does Comfort Systems USA make money? This Sankey traces every dollar of revenue through the income statement — into cost of revenue, R&D, SG&A, and taxes — and shows what's left as profit. Pick any fiscal year, recent quarter, or the trailing twelve months. Straight from SEC filings.

Comfort Systems USA Inc. · FY2025 · year ended 2025-12-31

Revenue$1.8BGross profit$403M · 22%Cost of revenue$1.4B · 78%Operating income$209M · 11%Operating expenses$195M · 11%SG&A$195M · 11%Pre-tax income$1.3B · 71%Other income$1.1B · 59%Net income$1.0B · 56%Income tax$271M · 15%

Each fiscal year from SEC filings. Percentages are share of revenue, so the green profit nodes read directly as gross / operating / net margin. Line items a company doesn't break out are derived from their siblings so the flows balance; small residuals show as “Other.” For informational purposes only.