| Name Organization | Address City, State Zip | Phone Mobile Phone | |
|---|---|---|---|
| David Delorme Mincon Group PLC | PO Box 13886 Roanoke, VA 24038 | (540) 344-9939 | |
| David DeMuro United Dynamics, Inc. | 2555 Cannon Street New Albany, IN 47150 | (812) 282-2222 | |
| Anthony Denier New York Drilling Services, Inc. | P.O.Box 918 Saugerties, NY 12477 | (845) 246-9193 | |
| Norman Dennis Jr. , Ph.D., P.E. University of Arkansas | 4190 Bell Engineering Center Fayetteville, AR 72701 | (479) 575-2933 | |
| Steve Dennis Rev Drill Sales & Rentals, Inc. | 4605 Wedgewood Blvd Frederick, MD 21703 | (301) 662-6552 | |
| Ross Dennison SAS Stressteel, Inc. | 3736 South Tacoma Way Tacoma, WA 98409 | (253) 237-9008 | |
| David DePaco Malcolm Drilling Company, Inc. | 4926 North Azusa Canyon Road Irwindale, CA 91706 | (626) 338-0035 | |
| David DePaco Malcolm Drilling Company, Inc. | 3503 Breakwater Court Hayward, CA 94545 | (510) 780-9181 | |
| Anthony DePasquale P.E. Vachris Engineering P.C. | 370 Old Country Rd., Suite 180 Garden City, NY 11530 | (516) 747-5096 | |
| Gina Depperschmidt Superior Foundation Equipment | 7530 - 114th Avenue SE Calgary, AB T2C 4T3 | 403-263-9776 403-818-7663 | |
| Paul Derrico Derrico Enterprises | 4001 Inglewood Ave., 101-634 Redondo Beach, CA 90278 | 3106294257 3106294257 | |
| Jerrod Dersch Ledcor Foundations Ltd. | 7008 Roper Road NW Edmonton, AB T6B 3H2 | (780) 462-4211 | |
| Ty Dewitt DeWitt Construction, Inc. | Box 201, 13023 NE Highway 99, Suite 7 Vancouver, WA 98686 | (360) 576-8755 | |
| Wayne Dewitt DeWitt Construction, Inc. | Box 201, 13023 NE Highway 99, Suite 7 Vancouver, WA 98686 | (360) 576-8755 | |
| Anna Dexter Thorton DYWIDAG Systems International, Inc. | 320 Marmon Drive Bolingbrook, IL 60440 | (630) 972-4035 | |
| Gary Dhaliwal Mainland Shoring & Deep Foundations Ltd | Unit 208 - 12899 80th Avenue Surrey, BC V3W 0E6 | ||
| Gianfranco Di Cicco GDConsulting LLC | P.O. Box 542019 Lake Worth, FL 33463 | (617) 784-2027 (617) 784-2027 | |
| Vinnie Di Fabio PACO Ventures, LLC | P.O. Box 3742, 250 S. Webster Street Seattle, WA 98108 | (206) 762-3550 | |
| Michael Diakun Keller Foundations Ltd. | 254 Main Street North, Unit 1 Acton, ON L7J 1W9 | (905) 878-7959 | |
| Michael Diakun Keller Foundations Ltd. | 5393 Steeles Avenue West Milton, ON L9T 2Y1 | (905) 878-7959 | |
| James Dickinson Berkel & Company Contractors, Inc. | 7300 Marks Lane Austell, GA 30168 | (770) 941-5100 | |
| James Dickinson Berkel & Company Contractors, Inc. | 2431 Linden Lane Silver Spring, MD 20910 | (301) 587-5111 | |
| Anthony DiGioia Jr. , Ph.D., P.E. DiGioia, Gray & Associates, LLC | 570 Beatty Rd. Monroeville, PA 15146 | (412) 372-4500 | |
| Joseph DiGregorio New York State Dept. of Transportation | Geotechnical Engineering Bureau, 50 Wolf Road Albany, NY 12232 | (518) 457-4769 | |
| Joseph DiGregorio P.E. NYSDOT Geotechnical Engineering Bureau | 50 Wolf Road Albany, NY 12232 | (518) 457-4769 |
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