| Area of Expertise | Contacts | Notes |
| Accelerometers | JoeBrandt | |
| Accessor/Transporter | JoeBrandt | |
| Active Surface | AmyShelton, MelindaMello | |
| aips++ | BobGarwood, JimBraatz | |
| Analog Filter Rack | RamonCreager, JoeBrandt | |
| Antenna | JoeBrandt | |
| Antenna Characterization | PaulMarganian | |
| Astrid | MarkClark, JoeBrandt, AmyShelton | |
| Archivist | MarkClark, JoeBrandt | |
| BCPM | AmyShelton | |
| CCB | MarkClark, MelindaMello | |
| Computers | WolfgangBaudler, ChrisClark | |
| Configuration Tool | MelindaMello | Call MelindaMello when you are expecting a different configuration than what was sent down to the telescope. Call RamonCreager if the values are not being communicated to the telescope properly. |
| Converter Rack | RamonCreager, JoeBrandt | |
| Datacapture Machine | PaulMarganian, BobGarwood | |
| DCR | RamonCreager, JoeBrandt | |
| Dish | JimBraatz, BobGarwood | |
| GBTIDL | JimBraatz, BobGarwood, PaulMarganian, | |
| IF Manager | MarkClark, JoeBrandt | |
| IF Rack | MarkClark, JoeBrandt | |
| gbtstatus | MelindaMello | |
| GFM | AmyShelton, PaulMarganian | |
| Grail | RamonCreager | |
| Holography | AmyShelton | |
| Index File Generation (on datacapture) | PaulMarganian, BobGarwood | |
| Inclinometers | JoeBrandt | |
| LO1 | JoeBrandt, AmyShelton | |
| Logview | MarkClark | |
| Measurements | MarkClark, AmyShelton | |
| MessageMux | JoeBrandt, MarkClark | |
| Motor Rack | AmyShelton, MelindaMello | |
| Observation Management Database (in Turtle) | MarkClark, AmyShelton | |
| Prime Focus Support Rack | AmyShelton, MelindaMello | |
| Quadrant Detector | RamonCreager | |
| Receivers | AmyShelton, MelindaMello | |
| Scan Coordinator | MarkClark, JoeBrandt | |
| SDFITS (index files/online process) | PaulMarganian, BobGarwood | |
| Site Time | AmyShelton, JoeBrandt | |
| Spectral Processor | MarkClark, AmyShelton | |
| Spectrometer | MarkClark, JoeBrandt | |
| Switching Signal Selector | MarkClark, JoeBrandt | |
| Turtle (Observing API) | AmyShelton, MarkClark | |
| Weather Stations & getWeather Daemon | AmyShelton, JoeBrandt | |
| Zpectrometer | RamonCreager | |