The operation of TIGO is organized in three technical working groups plus the administration. The employees are with their duties assigned of the following working groups:
- VLBI (Very Long Baseline Interferometry) for work with the radiotelescope.
- SLR (Satellite Laser Ranging) for the work with the laser ranging system.
- ADT (General service) to be in charge of all other instruments (GNNS, gravity metry, seismometry, meteorology, atomic clocks, information technology, power supply)
- Administration with the task of book keeping, supply, import/export, staff organisation of meetings and care for the installations and infrastructure.