S O S Environmental, Inc.
Environmental specialty company addressing many of today environmental remediation problems.SOS provides Site Assessments, Soil contamination investigations, and remediation. SOS specializes in treatment of sodium damaged soils and bio-remediation.
http://sosenvironmental.com/

Geophysical Exploration for Engineering and Environmental Investigations
Manual describing the geophysical procedures commonly conducted by the Army Corps of Engineers, used for engineering, geological and environmental investigations.
http://www.usace.army.mil/publications/eng-manuals/em1110-1-1802/toc.htm

Enviro-Lynx Investigations Inc.
Enviro-Lynx Investigations is a Canadian investigative research company that specializes in research, due diligence and fraud examination.
http://www.enviro-lynx.com/

Environmental Forensics
The International Society of Environmental Forensics (ISEF) is dedicated to the international consolidation and exchange of information related to envirnmental forensics
http://www.environmentalforensics.org/journal.htm

Hydro Tech Environmental, Corp.
A full service, integrated environmental consulting firm that provides a wide scope of services including Phase I environmental, site assessments through subsurface investigations, all the way to design of the management of remedial systems.
http://www.hydrotechenvironmental.com/

Gladding & Michel Investigations
Gladding and Michel, Inc. offers professional investigative services to the entire northwest and southwest regions of the US. Missing persons, insurance related investigations, surveillance, products liability, business litigation and more.
http://www.gladding-michel.com/

Springer & Associates, Inc.
San Diego area engineering, environmental, GIS, and GPS consulting services based in Escondido, California. Clients include Native American tribal governments, private industry, public agencies, local governments and law firms. Dedicated to providing accurate, responsive, timely, and cost-effective solutions to client engineering, environmental, GIS and GPS issues and concerns.
http://www.springer-and-associates.com/

Impact Environmental Consulting, Inc.
Offers environmental site assessments, underground tank investigations, and remediation services. Offices in New York and New Jersey.
http://www.impactenvironmental.com/

Environmental Forensic Investigations
Environmental Forensic Investigations, Inc., is a full-service, national environment consulting and engineering firm providing technical support to attorneys, companies, and property owners to evaluate and resolve environmental liabilities.
http://www.enviroforensic.com/

Hafer Environmental Services
A full service environmental consulting company specializing in phase I ESAs, soil and groundwater investigations, and remediation system design.
http://home.comcast.net/~haferenv/