Aehr Test Systems vs ISC
Both are primarily Test Equipment companies. ISC is larger by market cap ($2.9B vs $2.8B). ISC reports higher tracked revenue ($160M vs $50M).
Shared segment: Equipment (Back End).
Side-by-side
| Aehr Test Systems | ISC | |
|---|---|---|
| Market cap | $2.8B | $2.9B |
| Revenue | $50M (FY2026) | $160M (FY2025) |
| Primary segment | Test Equipment | Test Equipment |
| Market position | niche | major |
| Country | United States | South Korea |
| Tracked suppliers | 0 | 0 |
| Tracked customers | 7 | 7 |
| Chokepoint / criticality | 50/100 | 68/100 |
Market caps/revenue from the wafergraph dataset · data as of 2026-09-16. Criticality is a graph-derived chokepoint score (0–100). Coverage is partial; "Unpriced" means no reliable market cap.
How Aehr Test Systems and ISC compare
- Size: ISC is the larger company by market cap.
- Revenue: ISC reports higher tracked revenue.
- Supply-chain criticality: ISC has the higher chokepoint score (68/100 vs 50/100).
- Footprint: Aehr Test Systems (United States) vs ISC (South Korea).
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Cite as: wafergraph, “Aehr Test Systems vs ISC”, https://wafergraph.com/compare/aehr-vs-isc (data as of 2026-09-16).