Tower Semiconductor · customer concentration
Tower Semiconductor’s biggest customers
Who are Tower Semiconductor’s biggest customers?
NTCJ: 11% of FY2025 revenue
“For the year ended December 31, 2025, 11% of our revenues were derived from NTCJ, 39% of our revenues were derived from an additional seven customers, each comprising between 4% to 7% of our revenues, and the remaining 50% of our revenues were derived from many other smaller customers, as compared to 13% derived from NTCJ, 27% derived from an additional four customers, each comprising between 3% to 11% of our revenues, and the remaining 60% derived from many other smaller customers for the year ended December 31, 2024.”
Tower Semiconductor 20-F, verbatim · 20-F · filed Apr 30, 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
- NTCJ 11%
20-F · filed Apr 30, 2026 · named in the same filing: “11% of our revenues were derived from NTCJ”
- Customer B (not named in filing) 7%
FY2024
- NTCJ 13%
20-F · filed Apr 30, 2026 · named in the same filing: “13% of our revenues were generated from NTCJ”
- Customer B (not named in filing) 11%
FY2023
- NTCJ 14%
20-F · filed Apr 30, 2026 · named in the same filing: “14% of our revenues were generated from NTCJ”
- Customer B (not named in filing) 9%
FY2022
- Customer A (not named in filing) 14%
- Customer B (not named in filing) 9%
FY2021
- Customer A (not named in filing) 21%
- Customer B (not named in filing) 13%
FY2020
- Customer A (not named in filing) 25%
- Customer B (not named in filing) 11%
FY2019
- Customer A (not named in filing) 27%
- Customer B (not named in filing) 7%
“For the year ended December 31, 2023, 14% of our revenues were generated from NTCJ, 30% of our revenues were derived from an additional four customers, each of which generated between 3% and 9% of our revenues, and the remaining 56% of our revenues were derived from many other smaller customers.”
SEC filings only. No market data.
Is Tower Semiconductor getting more dependent on one customer?
Largest disclosed customer, by fiscal year
All Tower Semiconductor facts from SEC filings · Customer concentration of all companies