As of August 2016, GMT development and maintenance is being guided by a GMT Steering Committee:
- David Sandwell (Scripps) - Chair
- Louise Kellogg (UC Davis)
- Dave Caress (MBARI)
- Steve Diggs (Scripps)
- Dan Bassett (GNS Science, New Zealand)
- Khalid Soofi (ConocoPhillips)
- March 2018: Louise Kellogg joined the Steering Committee.
The GMT Team shall update the Steering Committee with timely reports. It has proven more reasonable to provide these reports twice a year as a quarter is a bit too short to add much new material.