Celestica · customer concentration
Celestica’s biggest customers
Who are Celestica’s biggest customers?
Customer One: 32% of FY2025 revenue
The filing does not name this customer. Hollsteen never guesses names.
“In the aggregate, our top 10 customers represented 79% of total revenue for 2025, 73% for 2024 and 64% for 2023.”
Celestica 10-K, verbatim · 10-K · filed Feb 27, 2026
Numbers, method and sources
Share of revenue per customer as tagged in the filing’s XBRL (ConcentrationRiskPercentage, benchmark revenue). US GAAP requires disclosure only for customers with at least 10% of revenue; a year without a customer means below 10% or not disclosed. Labels like “Customer A” are the filer’s own; the same label is not guaranteed to be the same customer every year.
FY2025
- Customer One (not named in filing) 32%
- Customer Two (not named in filing) 14%
- Customer Three (not named in filing) 12%
FY2024
- Customer One (not named in filing) 28%
- Customer Two (not named in filing) 11%
FY2023
- Customer One (not named in filing) 22%
FY2022
- Customer Two (not named in filing) 11%
- Customer One (not named in filing) 11%
“In 2024, two customers (each in our CCS segment) individually represented 10% or more of total revenue (28% and 11%).”
“In 2023, one customer (in our CCS segment) individually represented 10% or more of total revenue (22%).”
SEC filings only. No market data.
Is Celestica getting more dependent on one customer?
Largest disclosed customer, by fiscal year
Which customers does the filing name?
“Our CCS segment customers include Amazon Fulfillment Services, Inc., Meta Platforms, Inc., Google Inc., Ciena Corporation, Dell Technologies, Hewlett-Packard Enterprise, and IBM Corporation, Inc.”
“Our ATS segment customers include Applied Materials, Inc., LAM Research and Honeywell Inc.”
All Celestica facts from SEC filings · Customer concentration of all companies