Share this article Share this article BERWYN, Pa., May 4, 2021 /PRNewswire/ -- AMETEK, Inc. (NYSE: AME) today announced that it has acquired NSI-MI Technologies, a leading provider of radio frequency and microwave test and measurement solutions and services. NSI-MI was acquired for $230 million and has annual sales of approximately $90 million. NSI-MI's expertise in advanced radio frequency and microwave technologies allows them to provide complete test and measurement systems for niche applications across the aerospace, defense, automotive, wireless communications, and research markets. The company has a diverse portfolio of testing instrumentation, components and software, while also providing customers with turnkey anechoic and simulation chambers, and a broad set of aftermarket services.