Businesses offering environmental assessments of real property (land and buildings) do not belong here. They should be listed in Science/Environment/Products_and_Services/Consultants/Real_Property_Assessments/.
General environmental consultants whose offerings including EIA generally should be listed in Science/Environment/Products_and_Services/Consultants/Diversified.
Consulting ecologists whose services are not limited to EIA should be listed in Science/Biology/Ecology/Consultants/.