SECO S.p.A. signed agreements to buy 60% of Qiyang Technology for €9 million plus up to €3 million earnout, and the remaining 45% of Fannal Electronics for €23 million. Both deals are subject to closing conditions.

Marvell Technology, Inc. and Lumentum announced a definitive agreement for Marvell to acquire Lumentum in an all-stock transaction valued at $115 billion enterprise value. The deal combines electrical and optical technologies for AI connectivity. The announcement was made on November 2, 2026.

KITZ Corporation's board approved acquiring all shares of V TEX Corporation from Kanadevia Corporation, making V TEX a subsidiary to strengthen its semiconductor vacuum valve business.

TransDigm Group completed its acquisition of the Simmonds Precision Products business from Goodrich Corporation, an RTX subsidiary, for approximately USD 765 million in cash including certain tax benefits.

Atlas Copco completed its acquisition of Presys Co., Ltd, a privately owned Suwon, South Korea maker of vacuum valves for the semiconductor market with 134 employees. The purchase price was not disclosed, and the business joins the Semiconductor Chamber Solutions Division.

Atlas Copco agreed to acquire Presys Co., Ltd., a privately owned vacuum valve maker with 134 employees in Suwon, South Korea. The purchase price was not disclosed and closing is expected in Q1 2024, subject to regulatory approval.

Busch Vacuum Solutions has acquired centrotherm clean solutions, a maker of industrial gas abatement systems for the semiconductor and high-tech industries. The Blaubeuren headquarters and all jobs will be retained, and the deal is aligned with Pfeiffer Vacuum.

Atlas Copco agreed to acquire the cryopump service and distribution business of ZEUS Co., Ltd. in Gyeonggi-do, South Korea, which has 59 employees. The purchase price was not disclosed and closing is expected in Q2 2023.

IDEX Corporation agreed to acquire Muon B.V. and its subsidiaries, a Dutch micro-precision flow path manufacturer, for €700 million in cash. Muon serves medical, semiconductor, food processing, digital printing and filtration customers.

MKS Instruments and Atotech announced on 28 July 2022 that China's State Administration for Market Regulation granted unconditional merger approval, completing all regulatory clearances for MKS's acquisition of Atotech, which is expected to close on 17 August 2022.

Atlas Copco has completed the acquisition of the assets of the Stainless Design Concepts (SDC) division from CVD Equipment Corporation for around $16.9 million, reported on 6 April 2026.

SEMIKRON and Danfoss Silicon Power announced a merger creating a joint power electronics business, SEMIKRON-Danfoss, with over 3,500 workers. The transaction is subject to regulatory approvals and expected to close no later than Q3 2022.

White Knight Fluid Handling, a Graco subsidiary, acquired Irvine, California-based International Polymer Solutions (iPolymer), a maker of high-purity plastic fluid handling valves and fittings for semiconductor and other industries.

Mecaro, a Korean semiconductor parts and materials maker, signed an agreement to acquire 100% of KVTS, which makes special valves for semiconductor equipment. The signing ceremony was held at Mecaro's Pyeongtaek headquarters on 2 November 2020.

ams and Wise Road Capital signed an agreement to create a joint venture, ScioSense, for environmental, flow and pressure sensors, with ams transferring its sensor business and a valuation of about USD 120 million. The company is headquartered in the Netherlands.

EnPro Industries completed its acquisition of LeanTeq, a Taiwan-based refurbisher of semiconductor equipment components, to join its Technetics unit. The deal was reported in a 2019 review of valve sector M&A.

Atlas Copco has agreed to acquire the cryogenic business of Brooks Automation, including cryopump operations in Chelmsford, MA and Monterrey, Mexico, for a total value of USD 675 million. Completion is expected in Q1 2019, subject to regulatory approvals.

Watlow, a thermal systems designer and manufacturer, has acquired Yarbrough Solutions Worldwide of Austin, Texas, a semiconductor equipment solutions provider. Terms were not disclosed.

Entegris agreed to acquire the SAES Pure Gas business, a maker of molecular gas purification systems based in San Luis Obispo, California, from SAES Group for approximately $355 million. The deal is subject to customary purchase price adjustments.

Mitsubishi Electric announced the acquisition of the Power Device Sales Business of US company Powerex, with completion expected in January 2018.

Murata Manufacturing acquired the land and buildings of Sony's former Neagari semiconductor plant in Nomi, Ishikawa, completed October 13, 2017, forming Kanazawa Murata Manufacturing Nomi plant to meet electronic component demand.

Pfeiffer Vacuum Technology AG acquired California-based Nor-Cal Products, a vacuum component maker with about 300 employees in the USA and Vietnam, for $68 million. The deal was announced on 1 August 2017.

Sumitomo Heavy Industries has acquired Wakefield, Massachusetts-based Persimmon Technologies, adding vacuum robotics and Hybrid-Field electric motor technology to its portfolio.