| Name Organization | Address City, State Zip | Phone Mobile Phone | |
|---|---|---|---|
| Joe Chandler Independent Pipe Services, LLC | 9025 Pineland Rd Houston, TX 77044 | (713) 702-2699 | |
| George Chaney Pengo Corporation | 500 E. Hwy 10 Laurens, IA 50554 | ||
| Andrew Chapin Conner Gwyn Schenck, PLLC | P. O. Box 20744 Greensboro, NC 27420 | 336-691-9222 | |
| Doug Chappell P.E. Wurster Engineering & Construction, Inc. | 34 Carrie Drive Greenville, SC 29615 | (864) 313-2334 | |
| Chase Chappelle DMI Drilling Construction | 14211 16th Street East, Unit 8 Sumner, WA 98390-9608 | (253) 891-1311 | |
| Ed Chappelle DMI Drilling Construction | 14211 16th Street East, Unit 8 Sumner, WA 98390-9608 | (253) 891-1311 | |
| Luc Charland GeoRocFor inc. | 165 Joseph-Robertson Sherbrooke, QC J1L 2W7 | 819-569-4207 | |
| Michael Charlton Pro-Dig, LLC | 720 E 9th St., Suite 4 Lawrence, KS 66044 | (785) 856-2661 | |
| Adam Chavez Mutual Drilling Co. Inc. | 2201 Isleta Boulevard South West Albuquerque, NM 87105 | (505) 877-0520 | |
| Johnny Chavez Mutual Drilling Co. Inc. | 2201 Isleta Boulevard South West Albuquerque, NM 87105 | (505) 877-0520 | |
| Mariscela Chavez Mutual Drilling Co. Inc. | 2201 Isleta Boulevard South West Albuquerque, NM 87105 | (505) 877-0520 | |
| Alex Chen DYWIDAG Systems International, Inc. | 1314 Central Avenue South, Suite 100 Kent, WA 98032 | (253) 859-9995 | |
| John Chen Geolabs, Inc. | 2006 Kalihi Street Honolulu, HI 96819-3647 | (808) 841-5064 | |
| William Cheng AGL Manufacturing Ltd. | 8378 Prince Edward Street Vancouver, BC V5X 3R9 | (604) 267-1716 | |
| William Cheng AGL Manufacturing Ltd. | 100 East Main Street Ontario, CA 91761 | (888) 699-3388 | |
| Les Chernauskas P.E. Geosciences Testing and Research, Inc. | 55 Middlesex Street, Suite 225 North Chelmsford, MA 1863 | (978) 251-9395 | |
| Sean Chiang Ph.D., P.E. GROUND Engineering Consultants, Inc. | 41 Inverness Drive East Englewood, CO 80112 | (303) 289-1989 | |
| Marco Chiarabelli Soilmec S.P.A. | 4015 S. Freeway Fort Worth, TX 76110 | +39 3483958047 +1 (401) 965-2575 | |
| Chris Chinopulos Berkel & Company Contractors, Inc. | 3702 Rogers Industrial Park Rd Okahumpka, FL 34762 | (352)365-4308 | |
| Daniel Cho Champion Equipment Company | 8140 East Rosecrans Avenue Paramount, CA 90723 | (562) 634-8180 | |
| Campbell Chow Thurber Engineering, Ltd. | 4127 Roper Road Edmonton, AB T6B 3S5 | (780) 438-1460, Ext. 5119 | |
| Michael Chow GZA GeoEnvironmental of New York | 104 West 29th Street New York, New York 10001 | 212-594-8140 718-869-3798 | |
| James Christensen GEI Consultants, Inc. | 400 Unicorn Park Drive Woburn, MA 1801 | (781) 721-4126 | |
| Barry Christopher Ph.D., P.E. Christopher, Barry R., Ph.D., P.E. | 210 Boxelder Lane Roswell, GA 30076-3509 | (770) 641-8696 | |
| Michael Cianchetti GFL Infrastructure Group Inc. (Shoring Division) | 100 New Park Place, 5th Floor Vaughan, ON L4K 0H9 | (905) 750-5900 |
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