American Educational Products  
   Teaching materials for earth sciences and other fields of science, including raised relief maps for classroom use.
   http://www.amep.com/

Engineering Tectonics  
   Provides geotechnical engineering, construction services, drilling and environmental services.
   http://www.engineeringtectonics.com/

GeoConsult  
   Petrographic service that provides geologists with detailed descriptions of rocks mineralogy, texture and alteration to help evaluate ore potential.
   http://www.consultgeo.com/

CAESAR Consultancy  
   Consultancy in Cambridge providing specialist advice on scientific, technical, commercial topics in atmospheric, environmental and space research, education at the graduate and postgraduate level.
   http://www.caesarconsultancy.com/

Other Worlds Educational Enterprises  
   Instructional aides for the earth science classroom, Science Olympiad, and home schools.
   http://www.otherworlds-edu.com/