Freshwater Benthic Services
- Macroinvertebrate identification services for freshwater environments in the United States.
- http://my.freeway.net/~mwinnell/

Physalia Ocean Sciences, Inc.
- Consulting coastal and marine science and engineering firm. Assessment of environmental impacts associated with coastal resource development projects. USA, Japan, Thailand.
- http://www.physaliaos.com/

Aquascape Environmental
- Consulting and contracting services for lakes, streams, and wetlands. Southeastern U.S.A.
- http://www.aquascape.net/