- Freshwater Biological Association
 - Conducts research into all aspects of freshwater science and technology. - Section of Hydrobiology and Ecology of Inland Waters - Institute of Ecosystem Study
- Studying the physical properties of lakes and their watershed, ecophysiology of lacustrine food webs, lake eutrophication and evolution, pollutants, and management.
- Hydrobiological Institute - Academy of Sciences of the Czech Republic
- Researching biotic interrelations and their interactions with abiotic factors in lenitic water bodies, especially man-made reservoirs.
- baiji.org Foundation
- Promotes the conservation of Yangtze freshwater dolphins and the habitats in which they live as part of a greater mission to conserve the biodiversity of China's entire Yangtze basin.
- Karol Starmach Institute of Freshwater Biology
- Conducting complex limnological studies on streams, rivers, and reservoirs.
- Institute of Hydrobiology and Fisheries Science - University of Hamburg
- With research groups dedicated to limnology, aquatic toxicology, biological oceanography, and fishery science.
- Pond Life Identification Kit
- Simple guide to small and microscopic pond life. Offers biological profiles of bacteria, protozoa, algae, worms, arthropods, and other very tiny creatures.
- Institute for Hydrobiology - Technische Universität Dresden@
- Center for Freshwater Biology - University of New Hampshire
- Promotes training, research, and outreach activities concerning freshwater systems within the State of New Hampshire, regionally, and globally.
- Freshwater Biology Research Group - NTNU Museum of Natural History and Archaeology
- Working towards a better understanding of the distribution of limnic invertebrates and vertebrates, and their ecological preference and tolerance.
- Laboratory of Running Waters Biology - Masaryk University
- Conducting hydrobiology research.
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