Semiconductor & AI supply-chain companies in Taiwan
As of 2026-09-05, wafergraph tracks 82 semiconductor and AI supply-chain companies headquartered in Taiwan, across 10 value-chain segments, most of them in Design (Fabless) (17). The largest by market cap is TSMC at $2.22T; the 75 priced companies total $3.57T. 17 hold a monopoly or leader position in their segment.
Data as of 2026-09-05 · country = headquarters, not fab location · market caps from the daily wafergraph pipeline (Yahoo × SEC shares); unpriced companies are listed but not summed
Largest Taiwan companies by market cap
| Company | Segment | Position | Market cap | Ticker |
|---|---|---|---|---|
| TSMC | Pure-Play Foundry | leader | $2.22T | NYSE:TSM |
| MediaTek | Mobile SoC | leader | $223.0B | TWSE:2454 |
| Delta Electronics | Power & Cooling | leader | $149.9B | TWSE:2308 |
| Hon Hai (Foxconn) | Systems & ODM (AI servers) | leader | $113.4B | TWSE:2317 |
| ASE Technology | Outsourced Assembly & Test | leader | $97.7B | NYSE:ASX |
| United Microelectronics (UMC) | Pure-Play Foundry | major | $52.1B | NYSE:UMC |
| Nanya Technology | DRAM | niche | $48.6B | TWSE:2408 |
| Unimicron | Substrates | leader | $46.8B | TWSE:3037 |
| Quanta Computer | Systems & ODM (AI servers) | leader | $44.7B | TWSE:2382 |
| Asia Vital Components Co., Ltd. | Power & Cooling | major | $44.3B | TWSE:3017 |
| Accton Technology Corporation | Networking & Systems | leader | $37.1B | TWSE:2345 |
| Yageo | Passive Components (MLCC, resistors, inductors) | leader | $36.5B | TWSE:2327 |
| Chroma ATE | Test Equipment | major | $27.2B | TWSE:2360 |
| Winbond Electronics | Specialty & NOR Flash | niche | $24.8B | TWSE:2344 |
| Global Unichip (GUC) | Custom Silicon Designers | major | $24.6B | TWSE:3443 |
All 82 companies by segment
Design (Fabless) (17)
- MediaTek — Highest-volume smartphone SoC vendor; strong in TV and connectivity chips.
- ASPEED Technology — Dominant supplier of BMC server management chips.
- Novatek Microelectronics — Top display driver IC and timing controller designer.
- Global Unichip (GUC) — TSMC-affiliated ASIC design services company for advanced nodes.
- Realtek Semiconductor — High-volume connectivity, audio codec and Ethernet chip designer.
- Alchip Technologies — ASIC design services leader for AI and HPC chips on TSMC processes.
- ASMedia Technology — High-speed I/O controller designer (USB, PCIe, SATA).
- Nuvoton Technology — Microcontroller and analog maker; owns Panasonic's former semi business.
- Raydium Semiconductor — Display driver IC maker for panels and touch.
- Airoha Technology — Wireless connectivity and audio SoC designer in the MediaTek group.
- Himax Technologies — Display drivers plus ultralow-power AI vision sensors.
- Parade Technologies — High-speed interface and display timing controller designer.
- Elan Microelectronics — Touchpad, touchscreen, and microcontroller designer.
- Sitronix Technology — Taiwanese display driver IC designer.
- Fitipower — Display driver and power management IC designer.
- Holtek Semiconductor — Taiwanese microcontroller and analog IC maker.
- Ilitek — Touch and display driver IC designer.
Distribution & Misc (12)
- Hon Hai (Foxconn) — World's largest electronics contract manufacturer; builds AI servers.
- Quanta Computer — Top ODM building AI servers for hyperscalers.
- WT Microelectronics — Major Asian semiconductor distributor that acquired Future Electronics.
- WPG Holdings — World's largest semiconductor component distributor.
- Wistron — Taiwanese ODM building servers and AI systems for hyperscalers.
- Pegatron — Electronics ODM for computing, networking, and servers.
- Gigabyte Technology — Server, GPU, and motherboard maker for AI and data centers.
- Inventec — Server and AI-system ODM for cloud data centers.
- Compal Electronics — Taiwanese ODM; world's #2 notebook-PC manufacturer, increasingly building AI servers.
- Wiwynn — Hyperscale AI server and storage ODM (Wistron group).
- Supreme Electronics — Taiwanese electronic-component distributor.
- Weikeng Industrial — Asia-Pacific semiconductor and component distributor.
OSAT (10)
- ASE Technology — World's largest OSAT, includes SPIL; key advanced packaging partner.
- King Yuan Electronics (KYEC) — Largest dedicated test house; heavy AI GPU test exposure.
- Powertech Technology (PTI) — Memory-focused OSAT leader in Taiwan.
- Chipbond Technology — Display-driver IC bumping, COG, and gold-bump packaging and test leader.
- Sigurd Microelectronics — Taiwanese IC final-test and assembly provider.
- Greatek Electronics — Taiwanese OSAT specializing in memory and logic packaging.
- ChipMOS Technologies — OSAT focused on display driver and memory packaging/test.
- Orient Semiconductor (OSE) — Taiwanese outsourced assembly and test provider.
- Lingsen Precision — Taiwanese outsourced assembly and test provider.
- Walton Advanced Engineering — Memory and logic packaging and test services.
Materials (10)
- Unimicron — Largest Taiwanese ABF substrate maker serving major fabless customers.
- Nan Ya PCB — Formosa-group package substrate and PCB maker.
- Zhen Ding Technology — World's largest PCB maker; flexible and IC substrate supplier to Apple.
- GlobalWafers — Third-largest silicon wafer maker; expanding US capacity in Texas.
- Kinsus Interconnect — Pegatron-affiliated IC substrate manufacturer.
- Chang Wah Technology — Leadframe and semiconductor packaging materials maker.
- ITEQ — Copper-clad laminate and prepreg maker for high-speed PCBs.
- Wafer Works — Taiwanese silicon wafer maker focused on prime and reclaim wafers.
- Solar Applied Materials — Taiwanese sputtering target and precious-metal recycling specialist.
- Taiwan Mask Corporation — Taiwanese merchant photomask maker.
Memory (10)
- Phison Electronics — Leading NAND flash controller and storage-solution designer.
- Silicon Motion — Leading NAND controller designer for SSDs and embedded storage.
- Macronix International — Leading NOR flash and ROM maker.
- ADATA Technology — Memory module and SSD maker.
- Nanya Technology — Taiwanese DRAM maker focused on specialty and consumer DRAM.
- Winbond Electronics — Specialty memory maker: NOR flash and niche DRAM.
- Innodisk — Industrial-grade memory and embedded storage maker.
- Transcend Information — Memory module, flash, and embedded storage maker.
- Apacer Technology — Industrial-grade memory modules and solid-state drives.
- Team Group — Memory module and storage products maker.
Analog, Power, RF (6)
- Yageo — World's top chip-resistor maker and a leading MLCC supplier.
- Walsin Technology — Major MLCC and chip-resistor manufacturer.
- BizLink Holding — Cable-assembly and connector maker serving AI data-center, automotive/EV and industrial customers.
- Lotes Co. — Precision connector maker specializing in CPU sockets, memory connectors and I/O connectors.
- Egis Technology — Fingerprint sensor and security IC designer.
- Chilisin Electronics — Inductor and magnetic-component maker; Yageo-owned since 2022, brand folded into Pulse Electronics (still trades as TWSE: 2425).
Foundry (5)
- TSMC — World's dominant foundry, manufacturing nearly all leading-edge chips.
- Win Semiconductors — World's largest GaAs RF foundry.
- United Microelectronics (UMC) — Taiwan's second foundry, strong in mature and specialty nodes.
- Powerchip (PSMC) — Taiwanese foundry spanning memory and logic specialty processes.
- Vanguard International (VIS) — TSMC-affiliated specialty foundry for display drivers and power.
AI & Data Center (5)
- Delta Electronics — Power supplies, cooling, and power management for data centers and EVs.
- Accton Technology Corporation — Taiwan ODM/OEM of data-center and enterprise switches, including 400G AI/ML white-box fabrics.
- Asia Vital Components Co., Ltd. — Taiwanese thermal-solutions maker: fans, heat sinks, vapor chambers and liquid cooling for AI servers.
- Lite-On Technology — Power supplies and optoelectronics for servers and electronics.
- FSP Technology Inc. — Taiwanese FSP Group power-supply maker producing server PSUs (CRPS), UPS and battery backup units.
EDA & IP (5)
- eMemory Technology — Leading embedded non-volatile memory IP licensor.
- Faraday Technology — Taiwanese ASIC design-service and silicon IP provider.
- M31 Technology — Taiwanese silicon IP licensor of foundation and interface IP.
- Andes Technology — Taiwanese RISC-V CPU IP vendor.
- AnaGlobe Technology, Inc. — Taiwanese EDA firm specializing in IC physical-layout integration and custom layout automation.
Equipment (Back End) (2)
- Chroma ATE — Taiwanese test and measurement instrument maker for semis and batteries.
- MPI Corporation — Probe cards and test and measurement systems maker.
Tracked revenue
63 of the 82 companies report revenue in the dataset, totalling $812.8B (latest fiscal year per company, SEC EDGAR or Wikidata).
Cite as: wafergraph, “Semiconductor companies in Taiwan — 82 tracked, ranked by market cap”, https://wafergraph.com/country/taiwan/ (data as of 2026-09-05).
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