Aquascape Environmental - Consulting and contracting services for lakes, streams, and wetlands. Southeastern U.S.A.Quinlan Consulting - Consultancy and research; site has several technical papers on topics in aquatic ecology, water management, and river restoration.
Physalia Ocean Sciences, Inc. - Consulting coastal and marine science and engineeering firm. Assessment of environmental impacts associated with coastal resource development projects. USA, Japan, Thailand.
Freshwater Benthic Services - Macroinvertebrate identification services for freshwater environments in the United States.
Chesapeake Biogeochemical Associates - Provide data on rate processes in aquatic sediments. Maryland, USA.
