Sister Companies

iSeis: The International Seismic Corporation (iSeis) was formed with one purpose in mind: to build and deliver the first new “next generation” land seismic acquisition system which can take exploration forward. Sigma™ is the first next generation cableless land seismic system in the world. GSR and iSEIS are strategically allied and work closely together towards the same purpose.

For more information about iSeis, please visit their website at

Seismic Source: Seismic Source Company (SS) is a manufacturer of seismic instruments and data acquisition systems. Its products are used in a broad range of applications: Seismology, Structural Monitoring, Seismic Site Evaluation, Civil Engineering, Gas and Oil Exploration, Industrial Vibration Monitoring. Our alliance allows us to offer this wide range of products into our rental pool, strengthening our support offered to our clients.

For more information about SS, please visit their website at

 Ultera: Ultera Systems is destined to provide innovative solutions for the storage needs of today’s computing environments. It’s   unmatched and proven technical expertise is used to design, manufacture and market peripheral controller products to optimize and manage mass storage devices. By combining their strengths, GSR and Ultera provide the close round solution that our clients need.

For more information about Ultera, please visit their website at