| Fu, Hai | Extended emission-line regions: Remnants of quasar superwinds? | 2008 | University of Hawaii | GMOS-N | USA |
| Tanner, Angelle Maria | Extended sources in the central parsec of the Galactic Center | 2004 | University of California, Los Angeles | Hokupaa | USA |
| Mentuch, Erin | Extragalactic stellar populations in the near and mid-infrared: 1-30 mum emission from evolved populations, young and dustry star forming regions and the earliest stellar populations | 2010 | University of Toronto | GMOS-N | Canada |
| de Kleer, Katherine Rebecca | Extreme Worlds of the Outer Solar System: Dynamic Processes on Uranus & Io | 2017 | University of California, Berkeley | NIRI+ALTAIR | USA |
| Schnorr Muller, Allan | Feeding the Super Massive Black Hole in Active Galactic Nuclei | 2013 | Federal University of Rio Grande do Sul | GMOS-N/GMOS-S | Brazil |
| Levitan, David B. | Finding needles in the haystack: a search for AM CVn systems using the Palomar Transient Factory | 2013 | California Institute of Technology | GMOS-N | USA |
| Hennig, Moiré Gonçalves | Formação estelar e emissão de poeira em núcleos ativos de galáxias | 2018 | Universidade Federal de Santa Maria (UFSM) | NIFS+ALTAIR | Brazil |
| Randriamanakoto, Zara | Formation of young massive star clusters: a high-resolution multi-wavelength study of intensely star-formation galaxies | 2015 | University of Cape Town, South Africa | NIRI+LGS | Other |
| Rate, Gemma Ann | Galactic Wolf-Rayet stars with Gaia: Origins, Properties and Extragalactic Applications | 2020 | University of Sheffield | GMOS-N | UK |
| Kim, Jae-woo | Galaxy clustering and galaxy
clusters from the UKIDSS DXS | 2012 | Durham University | GMOS-N | UK |
| Guarnieri, Pierandrea | Galaxy evolution at high redshift exploiting large galaxy surveys | 2019 | University of Portsmouth | GSAOI+GeMS | UK |
| Cucchiara, Antonino | Gamma-ray burst afterglows as probes of their host galaxies and the cosmos | 2010 | The Pennsylvania State University | GMOS-N/GMOS-S/NIRI | USA |
| Hermes, James Joseph, Jr. | Gravitational waves, pulsations, and more : high-speed photometry of low-mass, He-core white dwarfs | 2013 | The University of Texas at Austin | GMOS-N/GMOS-S | USA |
| Toshikawa, Jun | Growth history of galaxy clusters traced by protoclusters at z~3-6 | 2015 | The Graduate University for Advanced Studies, Japan | GMOS-N | Japan |
| Livermore, Rachael | Harnessing the Power of Gravitational Lensing: Resolved Star Formation at Redshift 1 - 4 | 2013 | Durham University | NIFS | UK |
| Cheetham, Anthony Craig | High resolution imaging and the formation of stars and planets | 2015 | University of Syndey | GPI | Australia |
| Bitner, Martin Allan, Jr. | High resolution spectroscopy of old stars and young disks | 2008 | The University of Texas at Austin | TEXES | USA |
| Wheelwright, Hugh Eric | High resolution studies of early type emission line stars | 2010 | University of Leeds | PHOENIX | UK |
| Skemer, Andrew | High spatial resolution mid-infrared studies of planetary systems | 2011 | The University of Arizona | MICHELLE/TRECS | USA |
| Li, Dan | High-angular resolution mid-infrared study of disks and environments of young stars | 2013 | University of Florida | MICHELLE/TRECS | USA |
