Geophysical Software Development Celebrating 20 Years in 2018 Instrumental Software Technologies, Inc. (ISTI) specializes in developing custom data acquisition, analysis and processing software for the geophysical sciences. ISTI brings the reliability and support of commercial software to the realm of scientific research by taking software out of the lab and into the world by merging our clients’ cutting edge research with the best software engineering practices to create reliable custom software solutions for academic, government and industrial customers.