EX-21 4 exhibit21june2025.htm EX-21
Exhibit 21
SUBSIDIARIES OF THE REGISTRANT*

SUBSIDIARY (as of August 11, 2025) | STATE OR OTHER JURISDICTION OF OPERATION
Lam Research AG | Austria
Lam Research Management GmbH | Austria
Lam Research Salzburg GmbH | Austria
Lam Research Belgium BV | Belgium
Novellus Systems, Inc. | California, United States
Novellus Systems International, LLC | California, United States
Lam Research Capital Ltd. | Cayman Islands
Lam Research Semiconductor (Shanghai) Co. Ltd. | China
Lam Research (Shanghai) Co., Ltd. | China
Lam Research Service Co., Ltd. | China
Coventor, Inc. | Delaware, United States
Lam Research Capital LLC | Delaware, United States
Lam Research International Holding Company | Delaware, United States
Silfex, Inc. | Delaware, United States
SpeedFam-IPEC International Services, LLC | Delaware, United States
Coventor Sàrl | France
Lam Research SAS | France
Lam Research GmbH | Germany
Lam Research (H.K.) Limited | Hong Kong
Lam Research (India) Private Limited | India
Lam Research (Ireland) Limited | Ireland
Lam Research (Israel) Ltd. | Israel
Lam Research Services Ltd. | Israel
Lam Research S.r.l. | Italy
Lam Research GK | Japan
Lam Research Malaysia Sdn. Bhd. | Malaysia
Lam Research International Sdn. Bhd. | Malaysia
Lam Research Holdings B.V. | Netherlands
Lam Research International B.V. | Netherlands
Lam Research Korea Limited | Republic of Korea
Lam Research Korea LLC YH | Republic of Korea
Lam Research Korea Technology LLC YH | Republic of Korea
Lam Research Manufacturing Korea LLC | Republic of Korea
Lam Research Singapore Pte Ltd | Singapore
Lam Research Holding GmbH | Switzerland
Lam Research International Sàrl | Switzerland
Lam Research Co., Ltd. | Taiwan
Lam Research Manufacturing, Ltd. | Taiwan
Lam Research Ltd. | United Kingdom
Metryx, Ltd. | United Kingdom

*In accordance with Item 601(b)(21) of Regulation S-K, the Company has omitted from this Exhibit the names of some of its subsidiaries which, considered in the aggregate as a single subsidiary, do not constitute a significant subsidiary as defined in Rule 1-02(w) of Regulation S-X.