CalGeo Members Offering Residential Geotechnical Services

Northwestern California
Chandler Koehn Consulting | ckoehnconsulting@gmail.com, (707) 972-2897
KC Engineering Co. | dcymanski@kcengr.com, (707) 447-4025
Mid Pacific Engineering, Inc. | info@midpacificeng.com, (916) 927-7000
SHN Consulting Engineers and Geologists, Inc. | jbuck@shn-engr.com, (707) 441-8855
Tall Tree Engineering | dustin@talltreeengineering.com, (707) 841-2001
US Soils | PapaBear@USsoils.com, (650) 969-1985
Youngdahl Consulting Group, Inc. | mail@youngdahl.net, (916) 933-0633

Northeastern California
KC Engineering Co. | dcymanski@kcengr.com, (707) 447-4025
Mid Pacific Engineering, Inc. | info@midpacificeng.com, (916) 927-7000
SHN Consulting Engineers and Geologists, Inc. | jbuck@shn-engr.com, (707) 441-8855
US Soils | PapaBear@USsoils.com, (650) 969-1985
Youngdahl Consulting Group, Inc. | mail@youngdahl.net, (916) 933-0633

Greater Sacramento Area
KC Engineering Co. | dcymanski@kcengr.com, (707) 447-4025
Mid Pacific Engineering, Inc. | info@midpacificeng.com, (916) 927-7000
US Soils | PapaBear@USsoils.com, (650) 969-1985
Youngdahl Consulting Group, Inc. | mail@youngdahl.net, (916) 933-0633

Greater San Francisco Bay Area
Alan Kropp & Associates | akropp@akropp.com, (510) 841-5095
Atlas Technical Consultants | Corey.Dare@oneatlas.com, (925) 314-7100
C2Earth, Inc. | c2@c2earth.com, (408) 866-5436
Cleary Consultants, Inc. | chris@clearyconsultantsinc.com, (650) 948-0574
Divis Consulting, Inc. | info@divisconsulting.com, (415) 420-3498
KC Engineering Co. | dcymanski@kcengr.com, (707) 447-4025
Miller Pacific Engineering Group | nklemin@millerpac.com, 707-765-6140
RGH Geotechnical & Environmental Consultants | info@rghgeo.com, (707) 544-1072 (ONLY North Bay Areas)
Romig Engineers | info@romigengineers.com, (650) 591-5224
US Soils | PapaBear@USsoils.com, (650) 969-1985

Greater Santa Cruz/Monterey Area
Atlas Technical Consultants | Corey.Dare@oneatlas.com, (925) 314-7100
C2Earth, Inc. | c2@c2earth.com, (408) 866-5436
Cleary Consultants, Inc. | chris@clearyconsultantsinc.com, (650) 948-0574
Dees & Associates, Inc. | beckyb@deesandassociates.com, (831) 427-1770
Grice Engineering, Inc. | griceengineering@sbcglobal.net, (831) 422-9619
Rock Solid Engineering, Inc. | office@rocksolidengineers.com, (831) 724-5868
US Soils | PapaBear@USsoils.com, (650) 969-1985

Central Coast
C2Earth, Inc. | c2@c2earth.com, (408) 866-5436
GeoSolutions, Inc. | info@geosolutions.net, (805) 543-8539
Mid-Coast Geotechnical, Inc. | dane@midcoastgeotech.com, (805) 461-0965
Rock Solid Engineering, Inc. | office@rocksolidengineers.com, (831) 724-5868
US Soils | PapaBear@USsoils.com, (650) 969-1985

Central Valley/East
Condor Earth | rskaggs@condorearth.com, (209) 938-1040 (ONLY Tuolumne and Calaveras Counties)
Mid Pacific Engineering, Inc. | info@midpacificeng.com, (916) 927-7000
See's Consulting & Testing | david@seesconsulting.com, (559) 452-0100
US Soils | PapaBear@USsoils.com, (650) 969-1985

Greater Los Angeles Area
David H. Lee & Associates, Inc | elliottl@dhla.com, (949) 461-5690
Feffer Geological Consulting | josh@feffergeo.com, (310) 207-5048
GeoConcepts, Inc. | RaffiD@GeoConceptsInc.com, (818) 994-8895
Geosoils, Inc. | mpasdarpour@geosoils.com, (818) 785-2158 X240
Giles Engineering Associates, Inc. | jmaier@gilesengr.com, (714) 279-0817
Grover-Hollingsworth & Associates | akittel@ghageo.com, (818) 889-0844
Hamilton & Associates, Inc. | dhamilton@hamilton-associates.net, (310) 618-2190
Irvine Geotechnical, Inc. | jirvine@irvinegeotech.com, (626) 844-6641
Kling Consulting Group | hkling@klingconsultinggroup.com, (949) 797-6241
LGC Geotechnical, Inc. | dennisb@lgcgeotechnical.com, (949) 369-6141 (ONLY Coastal Areas)
Petra Geosciences, Inc. | sjafroudi@petra-inc.com, (714) 920-9266
Ralph Stone & Company, Inc. | rstonecogeo@aol.com, (310) 478-1501
SPC Engineering | info@spcgeo.com, (714) 630-0321
US Soils | PapaBear@USsoils.com, (650) 969-1985

Orange County Area
American Geotechnical, Inc. | braddockn@amgt.com, (714) 685-3900
David H. Lee & Associates, Inc | elliottl@dhla.com, (949) 461-5690
GeoConcepts, Inc. | RaffiD@GeoConceptsInc.com, (818) 994-8895
Giles Engineering Associates, Inc. | jmaier@gilesengr.com, (714) 279-0817
Hamilton & Associates, Inc. | dhamilton@hamilton-associates.net, (310) 618-2190
Kling Consulting Group | hkling@klingconsultinggroup.com, (949) 797-6241
LGC Geotechnical, Inc. | dennisb@lgcgeotechnical.com, (949) 369-6141
Petra Geosciences, Inc. | sjafroudi@petra-inc.com, (714) 920-9266
SPC Engineering | info@spcgeo.com, (714) 630-0321
Stoney-Miller Consultants, Inc / Geofirm | admin@stoneymiller.com, (949) 380-4886
US Soils | PapaBear@USsoils.com, (650) 969-1985

Inland Empire
David H. Lee & Associates, Inc | elliottl@dhla.com, (949) 461-5690
GeoSoils, Inc. | jfranklin@geosoilsinc.com, (760) 438-3155
Giles Engineering Associates, Inc. | jmaier@gilesengr.com, (714) 279-0817
Hamilton & Associates, Inc. | dhamilton@hamilton-associates.net, (310) 618-2190
John R Byerly Inc | john@johnrbyerlyinc.com, (909) 877-1324
Kling Consulting Group | hkling@klingconsultinggroup.com, (949) 797-6241
Merrell Johnson | jeff.burns@merrelljohnson.com, (760) 256-2068
Petra Geosciences, Inc. | sjafroudi@petra-inc.com, (714) 920-9266
SPC Engineering | info@spcgeo.com, (714) 630-0321
US Soils | PapaBear@USsoils.com, (650) 969-1985

San Diego Area
American Geotechnical, Inc. | braddockn@amgt.com, (714) 685-3900
Applied Consultants | joshua@applied-consultants.com, (619) 884-1119
David H. Lee & Associates, Inc | elliottl@dhla.com, (949) 461-5690
GeoSoils, Inc. | jfranklin@geosoilsinc.com, (760) 438-3155
Geotechnical Exploration ,Inc | officeadmin@GEI-SD.com, (858) 549-7222
Hamilton & Associates, Inc. | dhamilton@hamilton-associates.net, (310) 618-2190
Kling Consulting Group | hkling@klingconsultinggroup.com, (949) 797-6241
LGC Geotechnical, Inc. | dennisb@lgcgeotechnical.com, (949) 369-6141
Petra Geosciences, Inc. | sjafroudi@petra-inc.com, (714) 920-9266
SMS Geotechnical Solutions, Inc. | smsgeosol.inc@gmail.com, (760) 602-7815
US Soils | PapaBear@USsoils.com, (650) 969-1985

Desert
Giles Engineering Associates, Inc. | jmaier@gilesengr.com, (714) 279-0817
Hamilton & Associates, Inc. | dhamilton@hamilton-associates.net, (310) 618-2190
John R Byerly Inc | john@johnrbyerlyinc.com, (909) 877-1324
Merrell Johnson | jeff.burns@merrelljohnson.com, (760) 256-2068
Petra Geosciences, Inc. | sjafroudi@petra-inc.com, (714) 920-9266
US Soils | PapaBear@USsoils.com, (650) 969-1985