Technology was Comfort Systems Usa’s largest revenue line in fiscal 2025, bringing in $4.10B of $9.10B (45%).
| Customer | FY 2019 | FY 2020 | FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 |
|---|---|---|---|---|---|---|---|
| Technology | $546.29M | $1.11B | $2.33B | $4.10B | |||
| Technology[Member] | — | — | — | — | |||
| Manufacturing | $1.43B | $1.75B | $1.92B | $2.01B | |||
| Industrial | — | — | — | — | |||
| Healthcare | $584.02M | $554.91M | $584.90M | $810.65M | |||
| Education | $445.64M | $493.98M | $702.71M | $665.27M | |||
| Office Buildings | $349.24M | $400.75M | $424.34M | $446.66M | |||
| Retail, Restaurants & Entertainment | $311.70M | $310.38M | $377.30M | $337.59M | |||
| Government | $255.31M | $301.84M | $375.20M | $457.33M | |||
| Multi-Family & Residential | $126.34M | $181.78M | $142.13M | $130.58M | |||
| Other | $94.87M | $97.05M | $170.12M | $143.11M | |||
| Total | $4.14B | $5.21B | $7.03B | $9.10B |
Comfort Systems Usa brought in $9.10B from its nine revenue lines in fiscal 2025, the year ended December 31, 2025. That was up 29.5% from $7.03B in fiscal 2024. Technology was the largest at $4.10B (45.0%), ahead of Manufacturing at $2.01B (22.1%) and Healthcare at $810.65M (8.9%). The other six revenue lines brought in $2.18B combined.
Compared with fiscal 2024, Technology grew fastest, up 75.8% to $4.10B, while Retail, Restaurants & Entertainment fell the most, down 10.5% to $337.59M. From fiscal 2022 to 2025, combined revenue from these revenue lines grew from $4.14B to $9.10B, a compound annual growth rate of 30.0%. Technology's share of the total rose from 13.2% to 45.0%.
Mechanical was Comfort Systems Usa’s largest product and service line in fiscal 2025, bringing in $6.67B of $9.10B (73%).
| Product and Service | FY 2015 | FY 2016 | FY 2017 | FY 2019 | FY 2020 | FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 |
|---|---|---|---|---|---|---|---|---|---|---|
| Mechanical | $3.18B | $3.95B | $5.53B | $6.67B | ||||||
| Mechanical Services | — | — | — | — | ||||||
| Hvac | — | — | — | — | ||||||
| Electrical | $961.89M | $1.26B | $1.50B | $2.43B | ||||||
| Electrical Services | — | — | — | — | ||||||
| Plumbing | — | — | — | — | ||||||
| Building Automation Control Systems | — | — | — | — | ||||||
| Other | — | — | — | — | ||||||
| Total | $4.14B | $5.21B | $7.03B | $9.10B |
Comfort Systems Usa brought in $9.10B from its two product and service lines in fiscal 2025, the year ended December 31, 2025. That was up 29.5% from $7.03B in fiscal 2024. Mechanical was the largest at $6.67B (73.3%), ahead of Electrical at $2.43B (26.7%).
Compared with fiscal 2024, Electrical grew 61.9% to $2.43B and Mechanical grew 20.7% to $6.67B. From fiscal 2022 to 2025, combined revenue from these lines grew from $4.14B to $9.10B, a compound annual growth rate of 30.0%. Mechanical's share of the total fell from 76.8% to 73.3%.
New Construction was Comfort Systems Usa’s largest segment in fiscal 2025, bringing in $5.75B of $9.10B (63%).
| Segment | FY 2017 | FY 2018 | FY 2019 | FY 2020 | FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 |
|---|---|---|---|---|---|---|---|---|---|
| New Construction | $2.01B | $2.85B | $3.98B | $5.75B | |||||
| Mechanical Services | — | — | — | — | |||||
| Existing Building Construction | $1.21B | $1.34B | $1.95B | $2.12B | |||||
| Service Calls, Maintenance & Monitoring | $535.71M | $570.35M | $628.90M | $661.65M | |||||
| Service Projects | $382.16M | $446.15M | $468.95M | $568.85M | |||||
| Electrical Services | — | — | — | — | |||||
| Total | $4.14B | $5.21B | $7.03B | $9.10B |
Comfort Systems Usa brought in $9.10B from its four segments in fiscal 2025, the year ended December 31, 2025. That was up 29.5% from $7.03B in fiscal 2024. New Construction was the largest at $5.75B (63.2%), ahead of Existing Building Construction at $2.12B (23.3%) and Service Calls, Maintenance & Monitoring at $661.65M (7.3%). The remaining segment, Service Projects, brought in $568.85M.
Compared with fiscal 2024, New Construction grew fastest, up 44.4% to $5.75B. Every segment above 2% of revenue grew. From fiscal 2022 to 2025, combined revenue from these segments grew from $4.14B to $9.10B, a compound annual growth rate of 30.0%. New Construction's share of the total rose from 48.6% to 63.2%.
Comfort Systems Usa (FIX) reports its revenue by customer, by product and service and by segment. In fiscal 2025, Technology was its largest revenue line, bringing in $4.10B (45.0% of the total), followed by Manufacturing at $2.01B (22.1%).
Technology was Comfort Systems Usa's largest revenue line in fiscal 2025, bringing in $4.10B, or 45.0% of the $9.10B total across its nine revenue lines.
Mechanical was Comfort Systems Usa's largest product and service line in fiscal 2025, bringing in $6.67B, or 73.3% of the $9.10B total across its two product and service lines.
New Construction was Comfort Systems Usa's largest segment in fiscal 2025, bringing in $5.75B, or 63.2% of the $9.10B total across its four segments.
Among Comfort Systems Usa's revenue lines that make up at least 2% of revenue, Technology grew fastest in fiscal 2025, up 75.8% from $2.33B to $4.10B.
Every figure comes from Comfort Systems Usa's annual financial filings, as reported. Each line keeps the name Comfort Systems Usa gives it, and years follow its fiscal calendar.
Comfort Systems Usa's revenue by customer goes back to fiscal 2019, with figures through fiscal 2025. The latest four fiscal years are free to view, and the full history is available with a Business Quant subscription.