WESCO International Inc
Statements
Segments
US companies must disclose in their mandatory reports how revenue breaks down across business segments, regions and product lines. We read that breakdown for you straight from the annual and quarterly reports (10-K and 10-Q) of WESCO International Inc (WCC). It shows which part of the business is growing — and which one is holding it back.
Revenue by business segment
| Segment | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| CSS | $3.32B 27.0% | $5.72B 31.4% · +72.0% | $6.40B 29.9% · +12.0% | $7.31B 32.7% · +14.2% | $7.69B 35.3% · +5.2% | $9.10B 38.7% · +18.3% |
| EES | $5.48B 44.5% | $7.62B 41.8% · +39.1% | $8.82B 41.2% · +15.8% | $8.45B 37.7% · -4.2% | $8.39B 38.5% · -0.7% | $8.96B 38.1% · +6.7% |
| UBS | $3.52B 28.6% | $4.88B 26.8% · +38.5% | $6.20B 28.9% · +26.9% | $6.62B 29.6% · +6.9% | $5.74B 26.3% · -13.4% | $5.45B 23.2% · -4.9% |
| Corporate Segment | $0 0.0% | – | – | – | – | – |
Large figure: segment revenue. Below it the share of revenue in that period and the change against the prior year.
Revenue by region
| Segment | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| United States | $9.11B 73.9% | $13.16B 72.2% · +44.4% | $15.86B 74.0% · +20.5% | $16.61B 74.2% · +4.7% | $16.19B 74.2% · -2.5% | $17.39B 74.0% · +7.4% |
| Canada | $1.89B 15.4% | $2.75B 15.1% · +45.2% | $3.02B 14.1% · +10.0% | $2.97B 13.3% · -1.8% | $2.94B 13.5% · -0.9% | $3.19B 13.5% · +8.3% |
| Other International | $1.32B 10.7% | $2.31B 12.7% · +74.8% | $2.54B 11.9% · +9.9% | $2.81B 12.5% · +10.5% | $2.69B 12.3% · -4.2% | $2.93B 12.5% · +9.1% |
Large figure: segment revenue. Below it the share of revenue in that period and the change against the prior year.
Segment and region names are the ones the company itself uses and are shown as reported. Change and share refer to revenue.
Data as of: August 10, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q) · Segment figures: SEC EDGAR (10-K/10-Q reports)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.