Consulting and contracting services for lakes, streams, and wetlands. Southeastern U.S.A.

Consulting in marine and freshwater aquatic ecosystems. Located Quebec, Canada.

Professional services in assessment and planning at watershed, subbasin and ecosystem scales. Location: Washington State (USA).

Management of private lakes and ponds. Florida, Alabama, Georgia (USA).

Macroinvertebrate identification services for freshwater environments in the United States.

Consulting coastal and marine science and engineeering firm. Assessment of environmental impacts associated with coastal resource development projects. USA, Japan, Thailand.

Consultancy and research; site has several technical papers on topics in aquatic ecology, water management, and river restoration. Based in UK.