United States

Top 26 largest US Companies in the Semiconductor Equipment & Materials industry by Market Cap

This is the list of the largest public listed companies in the Semiconductor Equipment & Materials industry from the United States by market capitalization with links to their reference stock.

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Top Semiconductor Equipment & Materials Companies from the United States as of Jan. 01, 2026

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Rank Company Market Cap (USD) Country Sector Industry
1 Lam Research Corporation $233.37 B United States US Technology US Semiconductor Equipment & Materials
2 Applied Materials, Inc. $214.19 B United States US Technology US Semiconductor Equipment & Materials
3 KLA Corporation $167.83 B United States US Technology US Semiconductor Equipment & Materials
4 Teradyne, Inc. $33.02 B United States US Technology US Semiconductor Equipment & Materials
5 Entegris, Inc. $13.58 B United States US Technology US Semiconductor Equipment & Materials
6 Universal Display Corporation $5.79 B United States US Technology US Semiconductor Equipment & Materials
7 CMC Materials, Inc. $4.99 B

(June 1, 2022)

 United States US Technology US Semiconductor Equipment & Materials
8 Brooks Automation, Inc. $3.88 B

(July 1, 2024)

 United States US Technology US Semiconductor Equipment & Materials
9 Ambarella, Inc. $3.24 B United States US Technology US Semiconductor Equipment & Materials
10 IPG Photonics Corporation $3.16 B United States US Technology US Semiconductor Equipment & Materials
11 ACM Research, Inc. $2.91 B United States US Technology US Semiconductor Equipment & Materials
12 Axcelis Technologies, Inc. $2.71 B United States US Technology US Semiconductor Equipment & Materials
13 Photronics, Inc. $1.97 B United States US Technology US Semiconductor Equipment & Materials
14 Veeco Instruments Inc. $1.84 B United States US Technology US Semiconductor Equipment & Materials
15 Ultra Clean Holdings, Inc. $1.24 B United States US Technology US Semiconductor Equipment & Materials
16 Cohu, Inc. $1.15 B United States US Technology US Semiconductor Equipment & Materials
17 AXT, Inc. $781.4 M United States US Technology US Semiconductor Equipment & Materials
18 Ichor Holdings, Ltd. $701.8 M United States US Technology US Semiconductor Equipment & Materials
19 Aehr Test Systems $664.9 M United States US Technology US Semiconductor Equipment & Materials
20 Transphorm, Inc. $323.1 M

(June 1, 2024)

 United States US Technology US Semiconductor Equipment & Materials
21 Xperi Holding Corporation $267.4 M United States US Technology US Semiconductor Equipment & Materials
22 eMagin Corporation $165.3 M

(July 1, 2023)

 United States US Technology US Semiconductor Equipment & Materials
23 Atomera Incorporated $74.8 M United States US Technology US Semiconductor Equipment & Materials
24 Amtech Systems, Inc. $64.1 M

(July 1, 2025)

 United States US Technology US Semiconductor Equipment & Materials
25 Superconductor Technologies, Inc. United States US Technology US Semiconductor Equipment & Materials
26 indie Semiconductor, Inc. United States US Technology US Semiconductor Equipment & Materials

Top Semiconductor Equipment & Materials Companies from the United States as of Jan. 01, 2026

1. Lam Research

Company Profile: Lam Research Corporation
Market Cap (USD): $233.37 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

2. Applied Materials

Company Profile: Applied Materials, Inc.
Market Cap (USD): $214.19 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

3. KLA

Company Profile: KLA Corporation
Market Cap (USD): $167.83 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

4. Teradyne, Inc.

Company Profile: Teradyne, Inc.
Market Cap (USD): $33.02 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

5. Entegris, Inc.

Company Profile: Entegris, Inc.
Market Cap (USD): $13.58 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

6. Universal Display Corporation

Company Profile: Universal Display Corporation
Market Cap (USD): $5.79 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

7. CMC Materials, Inc.

Company Profile: CMC Materials, Inc.
Market Cap (USD): $4.99 B (June 1, 2022)
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

8. Brooks Automation, Inc.

Company Profile: Brooks Automation, Inc.
Market Cap (USD): $3.88 B (July 1, 2024)
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

9. Ambarella, Inc.

Company Profile: Ambarella, Inc.
Market Cap (USD): $3.24 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

10. IPG Photonics Corporation

Company Profile: IPG Photonics Corporation
Market Cap (USD): $3.16 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

11. ACM Research, Inc.

Company Profile: ACM Research, Inc.
Market Cap (USD): $2.91 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

12. Axcelis Technologies, Inc.

Company Profile: Axcelis Technologies, Inc.
Market Cap (USD): $2.71 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

13. Photronics, Inc.

Company Profile: Photronics, Inc.
Market Cap (USD): $1.97 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

14. Veeco Instruments Inc.

Company Profile: Veeco Instruments Inc.
Market Cap (USD): $1.84 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

15. Ultra Clean Holdings, Inc.

Company Profile: Ultra Clean Holdings, Inc.
Market Cap (USD): $1.24 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

16. Cohu, Inc.

Company Profile: Cohu, Inc.
Market Cap (USD): $1.15 B
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

17. AXT, Inc.

Company Profile: AXT, Inc.
Market Cap (USD): $781.4 M
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

18. Ichor Holdings, Ltd.

Company Profile: Ichor Holdings, Ltd.
Market Cap (USD): $701.8 M
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

19. Aehr Test Systems

Company Profile: Aehr Test Systems
Market Cap (USD): $664.9 M
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

20. Transphorm, Inc.

Company Profile: Transphorm, Inc.
Market Cap (USD): $323.1 M (June 1, 2024)
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

21. Xperi Holding Corporation

Company Profile: Xperi Holding Corporation
Market Cap (USD): $267.4 M
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

22. eMagin Corporation

Company Profile: eMagin Corporation
Market Cap (USD): $165.3 M (July 1, 2023)
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

23. Atomera Incorporated

Company Profile: Atomera Incorporated
Market Cap (USD): $74.8 M
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

24. Amtech Systems, Inc.

Company Profile: Amtech Systems, Inc.
Market Cap (USD): $64.1 M (July 1, 2025)
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

25. Superconductor Technologies, Inc.

Company Profile: Superconductor Technologies, Inc.
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

26. indie Semiconductor, Inc.

Company Profile: indie Semiconductor, Inc.
Country: United States
Sector: US Technology
Industry: US Semiconductor Equipment & Materials

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