WESCO International, Inc. splits its revenue into 3 lines in its filings. The largest line in Q3 of fiscal 2026, the quarter ended Sep 30, 2026 was CSS at $2.9 billion, 41% of the total.
USD in millions. The percent under a figure is the change from the same quarter a year earlier.
| Line |
TTM
Sep 30, 2026
|
Q3 FY2026
Sep 30, 2026
|
Q2 FY2026
Jun 30, 2026
|
Q1 FY2026
Mar 31, 2026
|
Q4 FY2025
Dec 31, 2025
|
Q3 FY2025
Sep 30, 2025
|
Q2 FY2025
Jun 30, 2025
|
Q1 FY2025
Mar 31, 2025
|
Q4 FY2024
Dec 31, 2024
|
|---|---|---|---|---|---|---|---|---|---|
| Revenue |
26,040
|
7,226
|
6,665
|
6,080
|
6,068
|
6,199
|
5,900
|
5,344
|
5,500
|
| CSS |
10,518
+20.0%
share 40.4%
|
2,934
+21.7%
share 40.6%
|
2,681
+18.4%
share 40.2%
|
2,479
+23.9%
share 40.8%
|
2,425
+18.5%
share 40.0%
|
2,411
share 38.9%
|
2,265
share 38.4%
|
2,000
share 37.4%
|
2,046
share 37.2%
|
| EES |
9,800
+11.8%
share 37.6%
|
2,772
+17.5%
share 38.4%
|
2,511
+11.2%
share 37.7%
|
2,244
+8.7%
share 36.9%
|
2,273
+7.0%
share 37.5%
|
2,360
share 38.1%
|
2,258
share 38.3%
|
2,065
share 38.6%
|
2,124
share 38.6%
|
| UBS |
5,722
+5.7%
share 22.0%
|
1,520
+6.4%
share 21.0%
|
1,473
+7.0%
share 22.1%
|
1,357
+6.2%
share 22.3%
|
1,371
+3.1%
share 22.6%
|
1,429
share 23.0%
|
1,377
share 23.3%
|
1,278
share 23.9%
|
1,330
share 24.2%
|
How these figures are calculated
Quarterly columns are single-quarter amounts. When a 10-Q reports only a year-to-date total, as cash flow statements do, the quarter is that total minus the previous quarter's year-to-date total. The fourth quarter is the annual report's full year minus the first nine months. A column marked YTD is a year-to-date total, shown when the earlier report needed for the single quarter is missing. USD in millions. Each group is a separate split of total revenue, so the groups are not added together. Share of revenue is that line divided by total revenue. The first column adds the latest year-to-date segment amount to the last fiscal year and subtracts the year-ago year-to-date amount. More on our methodology.
Company profile
- Industry
- Wholesale-Electrical Apparatus & Equipment, Wiring Supplies (SIC 5063)
- Listed as
- WCC (NYSE)
- Fiscal year ends
- December 31
- Headquarters
- Pittsburgh, PA
- SEC filer status
- Large accelerated filer
- SEC CIK
- 929008
- Former names
- CDW HOLDING CORP (until Jun 24, 1998)
Source: SEC EDGAR filings. This is company-reported data, not investment advice.