Wesco International, Inc. (WCC) Revenue by Segment

Wesco International revenue by segment at a glance

In Q2 fiscal 2026 (the quarter ended June 30, 2026), Wesco International's largest business segment was CSS, with $2.68 billion or 40% of revenue, up 18.4% from a year earlier. Next: EES (38%) and UBS (22%).

By country, United States brought in 73%, Other countries brought in 13% and Canada brought in 13% of revenue in Q2 fiscal 2026.

By customer type, Industrial brought in 32%, Construction End Market brought in 31% and Utility brought in 20% of revenue in Q2 fiscal 2020.

The fastest-growing business segment from a year earlier was CSS (+18.4%).

From company filings, in USD; latest quarter ended June 30, 2026; quarterly data from Q3 fiscal 2017.

Wesco International, Inc.

WCCManufacturing and Production

United States

Manufacturing and Production

Revenue breakdown

Fiscal quarters, from company filings

Segments by quarter (USD)

Click a bar to see that period below. Striped bars are calculated fourth quarters; an empty slot means it could not be calculated on the same basis i

EesCssUbsWesco

Q2 FY26 breakdown

Fiscal quarter ended Jun 30, 2026

Item	Revenue	Share	vs year before
Css	USD 2.68B	40.2%	+18.4%
Ees	USD 2.51B	37.7%	+11.2%
Ubs	USD 1.47B	22.1%	+7.0%

Sum of items USD 6.67B. Shares are of the items shown. Click an item with › to see its parts.

Also reported by:

All periods

Every item and period in one grid. Purple = calculated; "–" = not available.

Item	Q2 FY26	Q1 FY26	Q4 FY25	Q3 FY25	Q2 FY25	Q1 FY25	Q4 FY24	Q3 FY24	Q2 FY24	Q1 FY24	Q4 FY23	Q3 FY23	Q2 FY23	Q1 FY23	Q4 FY22	Q3 FY22	Q2 FY22	Q1 FY22	Q4 FY21	Q3 FY21	Q2 FY21	Q1 FY21	Q4 FY20	Q3 FY20	Q2 FY20	Q1 FY20	Q4 FY19	Q3 FY19	Q2 FY19
Ees	2.5B	2.2B	2.3B	2.4B	2.3B	2.1B	2.1B	2.1B	2.1B	2.1B	1.9B	2.2B	2.2B	2.1B	2.2B	2.2B	2.3B	2.1B	2.0B	2.0B	1.9B	1.7B	1.7B	1.7B	1.0B	1.1B	1.2B	1.3B	–
Css	2.7B	2.5B	2.4B	2.4B	2.3B	2.0B	2.1B	2.0B	1.9B	1.7B	2.0B	1.8B	1.9B	1.7B	1.8B	1.6B	1.6B	1.4B	1.5B	1.5B	1.5B	1.3B	1.4B	1.4B	341.5M	223.7M	228.4M	235.9M	–
Ubs	1.5B	1.4B	1.4B	1.4B	1.4B	1.3B	1.3B	1.4B	1.4B	1.6B	1.6B	1.7B	1.7B	1.7B	1.6B	1.6B	1.6B	1.4B	1.3B	1.3B	1.2B	1.1B	1.1B	1.1B	701.9M	630.5M	636.9M	662.1M	–
Wesco	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	2.2B

Wesco International revenue by business segment, last 4 quarters

Business segment	Q2 FY26	Q1 FY26	Q3 FY25	Q2 FY25	Share
CSS	$2.7B	$2.5B	$2.4B	$2.3B	40%
EES	$2.5B	$2.2B	$2.4B	$2.3B	38%
UBS	$1.5B	$1.4B	$1.4B	$1.4B	22%

In USD, fiscal quarters as reported; share = part of Q2 FY26 revenue.

Wesco International revenue by country, last 4 quarters

Country	Q2 FY26	Q1 FY26	Q3 FY25	Q2 FY25	Share
United States	$4.9B	$4.5B	$4.5B	$4.4B	73%
Other countries	$898.0M	$748.4M	$808.9M	$708.7M	13%
Canada	$872.2M	$827.1M	$844.1M	$804.0M	13%

In USD, fiscal quarters as reported; share = part of Q2 FY26 revenue.

Wesco International revenue by customer type, last 4 quarters

Customer type	Q2 FY20	Q1 FY20	Q3 FY19	Q2 FY19	Share
Industrial	$605.5M	$702.2M	$755.1M	$761.9M	32%
Construction End Market	$573.2M	–	–	$704.2M	31%
Utility	$370.3M	$340.9M	$357.5M	$346.9M	20%
Commercial, Institutional and Government	$315.8M	$289.0M	$320.9M	$337.0M	17%

In USD, fiscal quarters as reported; share = part of Q2 FY20 revenue.

Questions and answers

What are Wesco International's business segments?

CSS, EES and UBS (as reported for Q2 fiscal 2026).

Which business segment makes the most money for Wesco International?

CSS: $2.68 billion, or 40% of revenue, in Q2 fiscal 2026.

Where does Wesco International make its money?

By country in Q2 fiscal 2026: United States (73%), Other countries (13%) and Canada (13%).

MoreWesco International stock overview Wesco International financials Wesco International executive team Wesco International shareholders

Disclaimer: This analysis is for informational and educational purposes only and does not constitute financial, investment, tax, or legal advice. Data may be incomplete, delayed, or contain inaccuracies. Consult with a qualified financial advisor before making any investment decisions.