| Principal and Co-Investigators | Institution | Proposal title |
| Steven Raymond Majewski | University of Virginia | A Survey of Distant Halo Giant Stars for the SIM Astrometric Grid and a Deep Probe of Galactic Halo Structure |
| Richard J. Patterson | University of Virginia | |
| William E. Kunkel | Carnegie Institution | |
| Wolfgang Gieren | University of Concepcion | |
| Kathryn V. Johnston | Institute for Advanced Study | |
| David J. Helfand | Columbia University | A New Bright Quasar Sample for the SIM Extragalactic Frame Tie |
| Robert H. Becker | UC Davis & IGPP/LLNL | |
| Richard L. White | Space Telescope Science Institute | |
| Thomas E. Corbin | USNO | USNO Grid Star Selection for SIM |
| Arsen R. Hajian | USNO | |
| Christian A. Hummel | USNO | |
| Brian D. Mason | USNO | |
| Sean E. Urban | USNO | |
| Andreas Quirrenbach | UC San Diego | Selection of SIM Grid Stars-Astrophysical Criteria and the Role of Astrometric Catalogs and DIVA |
| Siegfried Roser | Astronomisches Rechen-Institut, Heidelberg, Germany | |
| Elena Schilbach | Astrophysikalisches Institut Potsdam, Germany | |
| Zoran Ninkov | Rochester Institute of Technology | A Sensitive Speckle Search for Duplicity in Candidate Objects for the SIM Reference Grid |
| Elliot P. Horch | Rochester Institute of Technology | |
| William F. van Altena | Yale University | |
| Kenneth John Johnston | USNO | Placing the SIM All-Sky Astometric Grid onto the ICRS |
| Ralph A. Gaume | USNO | |
| Alan L. Fey | USNO | |
| David A. Boboltz | USNO |