Technical Services was Clean Harbors’s largest segment in fiscal 2025, bringing in $1.86B of $5.74B (32%).
| Segment | FY 2016 | FY 2017 | FY 2018 | FY 2019 | FY 2020 | FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 |
|---|---|---|---|---|---|---|---|---|---|---|
| Service Revenues | — | — | — | — | ||||||
| Technical Services | $1.50B | $1.56B | $1.73B | $1.86B | ||||||
| Industrial Services & Other | $1.31B | $1.42B | $1.38B | $1.33B | ||||||
| Safety-Kleen Environmental Services | $763.34M | $877.21M | $954.15M | $1.02B | ||||||
| Safety-Kleen Oil | $821.77M | $713.97M | $699.49M | $593.87M | ||||||
| Field & Emergency Response Services | $575.30M | $609.91M | $895.12M | $937.36M | ||||||
| Field & Emergency Response | — | — | — | — | ||||||
| Product Revenues | — | — | — | — | ||||||
| Oil, Gas & Lodging Services And Other | — | — | — | — | ||||||
| Total | $4.97B | $5.18B | $5.66B | $5.74B |
Clean Harbors brought in $5.74B from its five segments in fiscal 2025, the year ended December 31, 2025. That was up 1.4% from $5.66B in fiscal 2024. Technical Services was the largest at $1.86B (32.4%), ahead of Industrial Services & Other at $1.33B (23.1%) and Safety-Kleen Environmental Services at $1.02B (17.8%). The other two segments brought in $1.53B combined.
Compared with fiscal 2024, Technical Services grew fastest, up 7.3% to $1.86B, while Safety-Kleen Oil fell the most, down 15.1% to $593.87M. From fiscal 2022 to 2025, combined revenue from these segments grew from $4.97B to $5.74B, a compound annual growth rate of 4.9%. Technical Services' share of the total rose from 30.1% to 32.4%.
United States was Clean Harbors’s largest region in fiscal 2025, bringing in $4.71B of $5.15B (91%).
| Geography | FY 2011 | FY 2016 | FY 2018 | FY 2019 | FY 2020 | FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 |
|---|---|---|---|---|---|---|---|---|---|---|
| United States | $3.68B | $4.02B | $4.51B | $4.71B | ||||||
| United States & Puerto Rico | — | — | — | — | ||||||
| Canada | $469.09M | $447.52M | $449.48M | $440.65M | ||||||
| Total | $4.15B | $4.47B | $4.96B | $5.15B |
Clean Harbors brought in $5.15B from its two regions in fiscal 2025, the year ended December 31, 2025. That is less than the $5.74B it reports by segment, so these regions do not cover all of its revenue. United States was the largest at $4.71B (91.4%), ahead of Canada at $440.65M (8.6%).
Compared with fiscal 2024, United States grew 4.3% to $4.71B, while Canada fell 2.0% to $440.65M.
Guarantor Subsidiaries was Clean Harbors’s largest product and service line in fiscal 2016, bringing in $1.75B of $2.33B (75%).
| Product and Service | FY 2016 |
|---|---|
| Guarantor Subsidiaries | $1.75B |
| Non-Guarantor Subsidiaries | $582.08M |
| Total | $2.33B |
Clean Harbors brought in $2.33B from its two product and service lines in fiscal 2016, the year ended December 31, 2016. Guarantor Subsidiaries was the largest at $1.75B (75.0%), ahead of Non-Guarantor Subsidiaries at $582.08M (25.0%).
Clean Harbors (CLH) reports its revenue by segment, by geography and by product and service. In fiscal 2025, Technical Services was its largest segment, bringing in $1.86B (32.4% of the total), followed by Industrial Services & Other at $1.33B (23.1%).
Technical Services was Clean Harbors' largest segment in fiscal 2025, bringing in $1.86B, or 32.4% of the $5.74B total across its five segments.
United States was Clean Harbors' largest region in fiscal 2025, bringing in $4.71B, or 91.4% of the $5.15B total across its two regions.
Guarantor Subsidiaries was Clean Harbors' largest product and service line in fiscal 2016, bringing in $1.75B, or 75.0% of the $2.33B total across its two product and service lines.
Among Clean Harbors' segments that make up at least 2% of revenue, Technical Services grew fastest in fiscal 2025, up 7.3% from $1.73B to $1.86B.
Every figure comes from Clean Harbors' annual financial filings, as reported. Each line keeps the name Clean Harbors gives it, and years follow its fiscal calendar.
Clean Harbors' revenue by segment goes back to fiscal 2016, 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.