MKS Instruments
American technology company From Wikipedia, the free encyclopedia
MKS Instruments, Inc. is an American process control instrumentation company.[1] It is headquartered in Andover, Massachusetts.[2]
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Company type | Public |
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ISIN | US55306N1046 |
Industry | Semiconductors |
Founded | 1961 |
Headquarters | Andover, Massachusetts, U.S. |
Area served | Worldwide |
Number of employees | 5,400 (2020) |
Website | www |

History
MKS Instruments was founded in 1961 as a provider of products and technologies used to measure, control, power, and monitor critical process parameters of advanced manufacturing processes.[3]
In 2001, the company acquired Emerson Electric's ENI Division which makes solid-state RF and DC plasma power supplies, networks and instruments.[4][5]
In April 2014, Brooks Automation entered into an agreement to sell its Granville-Phillips division to MKS Instruments.[6][7] MKS Instruments more than doubled their addressable market by acquiring the Newport Corporation and its subsidiaries, including Ophir Optronics, for $980 million in a 2016 leveraged buyout.[8] It acquired Electro Scientific Industries in 2019,[9] and Atotech in 2022.[10]
In 2021, MKS Instruments had about 5,400 employees and a market capitalization of about $11 billion.[11] As of 2021, sixty percent of the company's sales are from semiconductor products.[12] On February 3, 2023, MKS Instruments fell victim to a ransomware attack that among others shut down their websites for more than ten days.[13]
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