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Phase Matrix, Inc.

We design and manufacture frequency counters and VXI and PXI microwave products. We are a wholly owned subsidiary of National Instruments Corporation (Nasdaq: NATI), and we are located in the heart of California’s Silicon Valley.

109 Bonaventura Dr., San Jose, CA 95133, United States

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Our Company

In 1999 former employees of EIP Microwave, Inc. purchased key assets of EIP to form Phase Matrix, Inc. EIP, a well-established and long-time manufacturer of RF and microwave test-and-measurement (T&M) instruments, was a pioneer in the industry, introducing the first automatic frequency counters in 1976. In their senior technical roles at EIP, the founders of Phase Matrix contributed significantly to EIP’s most innovative products, including VXIbus synthesizers, counters, and downconverters. Phase Matrix continues to support the large installed-base of EIP® brand products.


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  • Location:

    Other: 109 Bonaventura Dr., San Jose, CA 95133, United States