Allegro MicroSystems vs STMicroelectronics
Allegro MicroSystems's primary segment is Analog & Mixed Signal; STMicroelectronics's is Integrated Device Manufacturer. STMicroelectronics is larger by market cap ($43.5B vs $6.3B). STMicroelectronics reports higher tracked revenue ($11.8B vs $890M).
Track the chain
What moved in the semiconductor supply chain — This Week in the Chain, the free weekly wafergraph briefing.
Subscribe to the free weekly briefing →
Free · no login · 615 companies, updated weekly
Side-by-side
| Allegro MicroSystems | STMicroelectronics | |
|---|---|---|
| Market cap | $6.3B | $43.5B |
| Revenue | $890M (FY2026) | $11.8B (FY2025) |
| Primary segment | Analog & Mixed Signal | Integrated Device Manufacturer |
| Market position | major | major |
| Country | United States | Switzerland |
| Tracked suppliers | 4 | 5 |
| Tracked customers | 0 | 16 |
| Chokepoint / criticality | 0/100 | 68/100 |
Market caps/revenue from the wafergraph dataset · data as of 2026-10-28. Criticality is a graph-derived chokepoint score (0–100). Coverage is partial; "Unpriced" means no reliable market cap.
How Allegro MicroSystems and STMicroelectronics compare
- Size: STMicroelectronics is the larger company by market cap.
- Revenue: STMicroelectronics reports higher tracked revenue.
- Supply-chain criticality: STMicroelectronics has the higher chokepoint score (68/100 vs 0/100).
- Footprint: Allegro MicroSystems (United States) vs STMicroelectronics (Switzerland).
Company hubs
Allegro MicroSystems · STMicroelectronics · Analog, Power, RF segment
Open the interactive comparison tool →
Cite as: wafergraph, “Allegro MicroSystems vs STMicroelectronics”, https://wafergraph.com/compare/allegro-vs-stmicro (data as of 2026-10-28).
Frequently asked questions3
- Is Allegro MicroSystems bigger than STMicroelectronics?
- STMicroelectronics is larger by market cap ($43.5B vs $6.3B).
- What's the difference between Allegro MicroSystems and STMicroelectronics?
- Allegro MicroSystems is a major in Analog & Mixed Signal based in United States; STMicroelectronics is a major in Integrated Device Manufacturer based in Switzerland. Both operate in the Analog, Power, RF segment.
- Who are Allegro MicroSystems's and STMicroelectronics's suppliers?
- wafergraph tracks 4 suppliers for Allegro MicroSystems and 5 for STMicroelectronics — Allegro MicroSystems's include United Microelectronics (UMC), Tower Semiconductor, TSMC; STMicroelectronics's include Soitec, TSMC, ROHM.