Source: Nexus Mods 46821, "PTR worldmap", main file 2023-03-05 (PTR_worldmap.xcf). Credits reproduced verbatim from the download's credits.txt; the download carries no licence text.

Gridmap custodians:
- Atrayonis (2016-2021)
- Taniquetil (2021-)

Other credits:
- Arthmodeus: Creator of the earliest fanon Tamriel world maps.
- c0dacan0n: Contributions to Summerset Isles map.
- Infragris: Contributions to Cyrodiil, Hammerfell maps.
- Jani: Landmass exports and contributions to all project maps.
- Klime65536: Landmass exports and contributions to all project maps.
- LadyNerevar: Creator of detailed Yokuda shape.
- Moorkh: Creator of early inspiration map for mainland Morrowind shape.
- Phenoix12: Contributions to Padomaic Isles map.
- Prometheus: Creator of early planning maps for mainland Morrowind and Skyrim.
- roerich: Contributions to Skyrim map.
- Swiftoak: Creator of the first incarnation of the gridmap for Tamriel Rebuilt.
- ThomasRuz: Contributions to High Rock map.
- Wolli: Contributions to Morrowind map.
- Vality7: Contributions to all provinces.
- Violet: Contributions to Valenwood and Elsweyr maps.
- the Tamriel Rebuilt team
- the Project Tamriel team
- the Abecean Isles team
- the Padomaic Isles team