| 501 (2399) | Institut National de Recherches en Genie Rural, Eaux et Forets | TUN |  |
| 502 (2401) | Xunta de Galicia A Coruna | ESP | |
| 503 (2403) | China Geological Survey * | CHN | |
| 504 (2415) | P P Shirshov Institute of Oceanology Russian Academy of Sciences | RUS | |
| 505 (2416) | NASA Ames Research Center | USA | |
| 506 (2436) | Space Applications Centre | IND | |
| 507 (2451) | Heilongjiang Academy of Agricultural Sciences | CHN | |
| 508 (2455) | Institute of Biology and Soil Science Russian Academy of Sciences | RUS | |
| 509 (2456) | Ufa Scientific Center Russian Academy of Sciences | RUS | |
| 510 (2461) | Horticulture Research Institute | EGY | |
| 511 (2472) | Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences | RUS | |
| 512 (2473) | Scottish Universities Environmental Research Centre | GBR | |
| 513 (2475) | Ministerio del Ambiente * | PER | |
| 514 (2490) | Institute of Cytology Russian Academy of Sciences | RUS | |
| 515 (2504) | Institute of Geography Russian Academy of Sciences | RUS | |
| 516 (2507) | Institute of Plant and Animal Ecology Russian Academy of Sciences | RUS | |
| 517 (2508) | Secretaria de Ciencia, Tecnologia e Innovacion Productiva * | ARG | |
| 518 (2527) | Desert Research Center | EGY | |
| 519 (2535) | Geological Institute Russian Academy of Sciences | RUS | |
| 520 (2536) | National Institute of Oceanography | IND | |
| 521 (2551) | Karelian Research Center Russian Academy of Sciences | RUS | |
| 522 (2554) | Institute for Tropical Technology | VNM | |
| 523 (2556) | Ministerio de Ciencia, Tecnologia y Medio Ambiente * | CUB | |
| 524 (2560) | Instituto de Pesquisas Jardim Botanico do Rio de Janeiro | BRA | |
| 525 (2571) | Ministerio de Educacion y Cultura * | URY | |
| 526 (2572) | National Academy of Sciences of Belarus * | BLR | |
| 527 (2579) | Institute of the Earth Crust Russian Academy of Sciences | RUS | |
| 528 (2584) | Research Institute of Forests and Rangelands | IRN | |
| 529 (2590) | Koltsov Institute of Developmental Biology Russian Academy of Sciences | RUS | |
| 530 (2592) | Papanin Institute for Biology of Inland Waters Russian Academy of Sciences | RUS | |
| 531 (2601) | Central Marine Fisheries Research Institute | IND | |
| 532 (2615) | Indian Institute of Horticultural Research | IND | |
| 533 (2623) | Institute of Ecology and Biological Resources | VNM | |
| 534 (2624) | Tyumen Scientific Centre of the Siberian Branch of the Russian Academy of Sciences | RUS | |
| 535 (2627) | Southern Scientific Center Russian Academy of Sciences | RUS | |
| 536 (2628) | Nanjing Botanical Garden Memorial Sun Yat-Sen Jiangsu Province and Chinese Academy of Sciences | CHN | |
| 537 (2629) | Sukachev Institute of Forest Russian Academy of Sciences | RUS | |
| 538 (2633) | Kola Science Centre Russian Academy of Sciences | RUS | |
| 539 (2639) | Komi Scientific Center Russian Academy of Sciences | RUS | |
| 540 (2643) | Dagestan Scientific Center Russian Academy of Sciences | RUS | |
| 541 (2647) | Russian Academy of Agricultural Sciences | RUS | |
| 542 (2650) | I.M. Sechenov Institute of Evolutionary Physiology and Biochemistry Russian Academy of Sciences | RUS | |
| 543 (2652) | Centre National de la Recherche Scientifique et Technologique * | BFA | |
| 544 (2653) | Instituto Venezolano de Investigaciones Cientificas | VEN | |
| 545 (2655) | Egyptian Atomic Energy Authority * | EGY | |
| 546 (2657) | National Bureau of Agricultural Insect Resources | IND | |
| 547 (2660) | Iranian Fisheries Science Research Institute | IRN | |
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