Multi-Phase Technologies was founded in 2000 by Marge and Doug LaBrecque as a small, woman owned business. From the start, MPT has been dedicated to providing high quality and innovative geophysical monitoring equipment and services. 

In November 2019 IRIS Instruments acquired 70% of Multi-Phase Technologies, LLC. In this transition we became MPT-IRIS Inc. MPT-IRIS will continue to sell, service, and support the same equipment lines from Multi-Phase Technologies and will release new hardware and software products.