Measurements of stable isotopes are or were performed by:
- 1961–1967: University of Copenhagen, Copenhagen
- 1973–1978: International Atomic Energy Agency (IAEA), Vienna
- 1978–2017 within the station network of the Federal Institute of Hydrology (BfG) and the German Meteorological Service (DWD): Helmholtz Munich - German Research Center for Environmental Health, Neuherberg
- since 2015 (river water) and since 2018 (precipitation) to the present day: Federal Institute for Geosciences and Natural Resources (BGR), Hanover
Tritium measurements are or have been performed at the following laboratories:
- 1961–1967: Radioactive Dating Laboratory Lal
- 1973–1978: International Atomic Energy Agency (IAEA), Vienna
- from 1978 to the present day within the station network of BfG and DWD: Federal Institute of Hydrology (BfG), Koblenz
Institutes and laboratories participating in the German Isotope Network (GIN) contributed the number of isotope data listed below (as of June 2026):
| Organisation | Location | δ²H | δ¹⁸O | ³H | Total |
|---|---|---|---|---|---|
| Federal Institute of Hydrology (BfG) | Koblenz | 488 | 488 | 31,605 | 32,581 |
| Helmholtz Munich - German Research Center for Environmental Health | Neuherberg | 11,284 | 11,237 | 2,770 | 25,291 |
| Federal Institute for Geosciences and Natural Resources (BGR) | Berlin-Spandau | 8,909 | 8,909 | 17,818 | |
| Bavarian State Office for the Environment (LfU) | Hof | 1,661 | 1,967 | 3,774 | 7,402 |
| Isodetect GmbH | Leipzig/ Munich | 2,483 | 2,486 | 929 | 5,898 |
| State Agency for the Environment Baden-Württemberg (LUBW) | Karlsruhe | 229 | 639 | 2,344 | 3,212 |
| GeoZentrum Nordbayern of the Friedrich-Alexander University (FAU) | Erlangen/ Nuremberg | 1,155 | 1,155 | 2,310 | |
| Saarland State Office for Environment and Labour Safety Saarland (LUA) | Saarbrücken | 63 | 89 | 1,954 | 2,106 |
| Helmholtz Centre for Environmental Research GmbH - UFZ | Halle | 700 | 990 | 383 | 2,073 |
| University of Heidelberg, Institute of Environmental Physics (IUP) | Heidelberg | 143 | 143 | 563 | 849 |
| Forschungszentrum Jülich GmbH (FZJ) | Jülich | 843 | 843 | ||
| Leibniz Institute for Baltic Sea Research (IOW) | Warnemünde | 378 | 378 | 756 | |
| Federal Office for the Environment Switzerland (FOEN) | Ittigen | 311 | 311 | 45 | 667 |
| University of Freiburg, Hydrology (UNR-Hydro) | Freiburg | 309 | 309 | 618 | |
| German Meteorological Service (DWD) | Offenbach | 604 | 604 | ||
| International Atomic Energy Agency (IAEA), WISER portal | Vienna | 197 | 197 | 194 | 588 |
| Arsenal Research | Vienna | 285 | 288 | 573 | |
| Freiberg University of Mining and Technology | Freiberg | 498 | 498 | ||
| State Office for the Environment, Mining and Nature Conservation (TLUBN) | Jena (Thuringia) | 113 | 202 | 127 | 442 |
| Institute of Applied Geophysics (LIAG) | Hanover | 169 | 234 | 403 | |
| University of Bremen, Institute of Environmental Physics (IUP) | Bremen | 384 | 384 | ||
| Austrian Research Centers (ARC), today: Seibersdorf Laboratories | Vienna | 43 | 108 | 108 | 259 |
| Austrian Institute of Technology (AIT) | Vienna | 78 | 78 | 102 | 258 |
| Radiation Protection, Analytics & Disposal (VKTA) | Dresden-Rossendorf | 158 | 158 | ||
| Hydroisotop GmbH | Schweiten-kirchen | 44 | 44 | 54 | 142 |
| Univ. of Copenhagen, Dept. of Geosciences & Natural Resource Management | Copenhagen | 56 | 59 | 115 | |
| University of Innsbruck, Quaternary Research Group | Innsbruck | 35 | 35 | 70 | |
| International Atomic Energy Agency (IAEA), Radioactive Dating Laboratory | Vienna | 65 | 65 | ||
| Authority for the Environment, Climate, Energy, and Agriculture (BUKEA) | Hamburg | 19 | 42 | 61 | |
| LUFA-ITL GmbH, today: AGROLAB LUFA GmbH | Kiel | 48 | 48 | ||
| SGS Institut Fresenius GmbH | Taunusstein | 32 | 32 | ||
| Eurofins IAF-Radioökologie GmbH | Radeberg | 29 | 29 | ||
| Technical University of Darmstadt, Institute of Applied Geosciences (IAG) | Darmstadt | 20 | 20 | ||
| AGROLAB Umwelt GmbH | Kiel | 12 | 12 | ||
| Eurofins Umwelt Nord GmbH | Oldenburg | 6 | 6 | ||
| Society for Radiation Research (SRR) | ? | 2 | 2 | 1 | 5 |
| GFZ Helmholtz Centre for Geosciences | Potsdam | ||||
| Justus-Liebig University of Giessen (JLU), Landscape, Water, and Bio-geochemical Cycles | Giessen | ||||
| Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) | Berlin | ||||
| Leibniz Centre for Agricultural Landscape Research (ZALF) | Müncheberg | ||||
| Technical University of Braunschweig, Institute of Geoecology (IGÖ) | Braunschweig | ||||
| Dresden University of Technology, Core Facility Environment Analytics (CFEA) | Dresden | ||||
| University of Natural Resources and Life Sciences (BOKU), Institute of Soil Research | Vienna | ||||
| University of Kassel, Institute of Water, Waste and Environmental Engineering (IWAU) | Kassel | ||||
| University of Koblenz and Landau, Institute for Groundwater Ecology (IGÖ) | Landau | ||||
| Total | 28,681 | 31,142 | 47,373 | 107,196 |