United States was Wesco International’s largest region in fiscal 2025, bringing in $17.39B of $23.51B (74%).
| Geography | FY 2009 | FY 2010 | FY 2016 | FY 2017 | FY 2018 | FY 2019 | FY 2020 | FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| United States | $15.86B | $16.61B | $16.19B | $17.39B | ||||||||
| Canada | $3.02B | $2.97B | $2.94B | $3.19B | ||||||||
| Other International | $2.54B | $2.81B | $2.69B | $2.93B | ||||||||
| Non-Us | — | — | — | — | ||||||||
| Other Foreign | — | — | — | — | ||||||||
| Mexico | — | — | — | — | ||||||||
| Total | $21.42B | $22.39B | $21.82B | $23.51B |
Wesco International brought in $23.51B from its three regions in fiscal 2025, the year ended December 31, 2025. That was up 7.8% from $21.82B in fiscal 2024. United States was the largest at $17.39B (74.0%), ahead of Canada at $3.19B (13.5%) and Other International at $2.93B (12.5%).
Compared with fiscal 2024, Other International grew fastest, up 9.1% to $2.93B. Every region above 2% of revenue grew. From fiscal 2022 to 2025, combined revenue from these regions grew from $21.42B to $23.51B, a compound annual growth rate of 3.2%. United States' share held steady at about 74.0%.
Css was Wesco International’s largest segment in fiscal 2025, bringing in $9.10B of $23.51B (39%).
| Segment | FY 2018 | FY 2019 | FY 2020 | FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 |
|---|---|---|---|---|---|---|---|---|
| Ees | $8.82B | $8.45B | $8.39B | $8.96B | ||||
| Css | $6.40B | $7.31B | $7.69B | $9.10B | ||||
| Ubs | $6.20B | $6.62B | $5.74B | $5.45B | ||||
| Total | $21.42B | $22.39B | $21.82B | $23.51B |
Wesco International brought in $23.51B from its three segments in fiscal 2025, the year ended December 31, 2025. That was up 7.8% from $21.82B in fiscal 2024. Css was the largest at $9.10B (38.7%), ahead of Ees at $8.96B (38.1%) and Ubs at $5.45B (23.2%).
Compared with fiscal 2024, Css grew fastest, up 18.3% to $9.10B, while Ubs fell the most, down 4.9% to $5.45B. From fiscal 2022 to 2025, combined revenue from these segments grew from $21.42B to $23.51B, a compound annual growth rate of 3.2%. Css' share of the total rose from 29.9% to 38.7%.
Industrial was Wesco International’s largest revenue line in fiscal 2017, bringing in $2.85B of $7.68B (37%).
| Customer | FY 2016 | FY 2017 |
|---|---|---|
| Industrial | $2.64B | $2.85B |
| Construction | $2.48B | $2.55B |
| Utility | $1.16B | $1.18B |
| Commercial, Institutional & Government | $1.05B | $1.10B |
| Total | $7.34B | $7.68B |
Wesco International brought in $7.68B from its four revenue lines in fiscal 2017, the year ended December 31, 2017. That was up 4.7% from $7.34B in fiscal 2016. Industrial was the largest at $2.85B (37.1%), ahead of Construction at $2.55B (33.2%) and Utility at $1.18B (15.4%). The remaining revenue line, Commercial, Institutional & Government, brought in $1.10B.
Compared with fiscal 2016, Industrial grew fastest, up 7.9% to $2.85B. Every revenue line above 2% of revenue grew.
Wesco International (WCC) reports its revenue by geography, by segment and by customer. In fiscal 2025, United States was its largest region, bringing in $17.39B (74.0% of the total), followed by Canada at $3.19B (13.5%).
United States was Wesco International's largest region in fiscal 2025, bringing in $17.39B, or 74.0% of the $23.51B total across its three regions.
Css was Wesco International's largest segment in fiscal 2025, bringing in $9.10B, or 38.7% of the $23.51B total across its three segments.
Industrial was Wesco International's largest revenue line in fiscal 2017, bringing in $2.85B, or 37.1% of the $7.68B total across its four revenue lines.
Among Wesco International's regions that make up at least 2% of revenue, Other International grew fastest in fiscal 2025, up 9.1% from $2.69B to $2.93B.
Every figure comes from Wesco International's annual financial filings, as reported. Each line keeps the name Wesco International gives it, and years follow its fiscal calendar.
Wesco International's revenue by geography goes back to fiscal 2009, 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.