Who KLA buys from and sells to
Dominant supplier of wafer inspection and metrology tools that find defects before chips ship.
Part of Semiconductor Fabs and Equipment spending
Buys from 0
None recorded
Sells to 5
- TSMCTSMprocess control — finding the defect before the wafer shipsover 10% of revenue (FY2025 10-K)
- Samsunginspection for logic and memory
- IntelINTCprocess control for the foundry nodes
- MicronMUmemory yield
- Chinese chipmakersinspection tools under export limits
Where the chain could break
- TSMC alone is over 10% of revenue; leading-edge logic drives most demand
- China was roughly 30% of FY2026 revenue under tightening US export rules
Competes with
- Onto InnovationONTOinspection and metrology, weighted to packaging
- Applied MaterialsAMATe-beam inspection and review
- Hitachi High-TechCD-SEM metrology
Mapped by hand from filings and company reporting, as of October 2026. It shows the relationships that matter most, not every contract: most are never disclosed, and agreements change.