| Name Organization | Address City, State Zip | Phone Mobile Phone | |
|---|---|---|---|
| Ralph Leonard NUMA | PO Box 348 Thompson, CT 06277-0348 | (860) 923-9551 | |
| Marco Lessard PRECO-MSE | 1620 Newman Crescent Dorval, QB H9P 2R8 | (450) 427-3650 | |
| John Lessley S & ME, Inc. | 134 Suber Road Columbia, SC 29210 | (803) 561-9024 | |
| Torri Lester DIG-IT, Inc. | 1601 S M-37 HWY Hastings, MI 49058 | (269) 945-6330 | |
| Steven Levorson Ph.D., P.E. Terracon Consultants, Inc. | 13910 West 96th Terrace Lenexa, KS 66215 | (913) 492-7777 | |
| Jacqueline Lewelling Case Pacific Company | 2121 Ardmore Road Paso Robles, CA 93446-7199 | (805) 237-8851 | |
| Greg Lewis Nicholson Construction Co. | 2400 Ansys Drive, Suite 303 Canonsburg, PA 15317 | (412) 221-4500 (412) 660-6103 | |
| Kevin Lewis | 1265 Blairs Bridge Road Lithia Springs, GA 30122-3222 | (770) 948-9521 | |
| David Li GZA GeoEnvironmental of New York | 104 West 29th Street New York, New York 10001 | 212-594-8140 | |
| Joseph Li DSI Canada Civil, Ltd. | 37 Cardico Drive Gormley, ON L0H 1G0 | (905) 888-8988 | |
| Joseph Li DSI Canada Civil, Ltd. | 19433 96th Avenue, #103 Surrey, BC V4N 4C4 | (604) 888-8818 | |
| Jonathan Kwesi Liggie Liggie Surveys Inc | 5268 Nicholson Lane, Suite G234 Kensington, Maryland 20895 | 202-702-7995 202-702-7995 | |
| Cindy Liles Blaze Equipment, LLC | 5500 Nafex Way, Suite 1 Fort Worth, TX 76131 | ||
| Robin Lim Geolabs, Inc. | 2006 Kalihi Street Honolulu, HI 96819-3647 | (808) 841-5064 | |
| Frank Lin P.E. Geotest Engineering, Inc. | 5600 Bintliff Drive Houston, TX 77036 | (713) 266-0588 | |
| Bernhard Lindermair RTG Rammtechnik GmbH | Bauer Strasse 1 Schlobenhausen, 86529 | 49 8252 97 0 | |
| Renan Listi Sinclair Well Products | 10602 Midway Avenue Cerritos, CA 90703 | (562) 403-3559 | |
| Genna Livingston Foundation Drill Shafts, Inc. | 107 N. Rosemont Sulphur, LA 70665 | (337) 558-6535 | |
| John Lizzo Port Authority of New York & New Jersey | 2 Gateway Center, 16th Floor Geotechnical Group Newark, NJ 7102 | 212-435-5118 | |
| Cameron Lobato P.E. GeoStabilization International, LLC | 543 31 Road Grand Junction, CO 81504 | (970) 985-1066 | |
| Jeff Lockhart United Dynamics, Inc. | 2555 Cannon Street New Albany, IN 47150 | (812) 282-2222 | |
| Christopher Locussol GEI Consultants, Inc. | 1620 I Street NW Suite 800 Washington, District of Columbia 20006 | (202) 828-9517 (202) 494-2288 | |
| Sheri Loegering Ramsey Companies | 8297 Brooklyn Boulevard Minneapolis, MN 55445 | (612) 529-0077 | |
| Erik Loehr University of Missouri | Dep. of Civil Engineering E2509 Lafferre Hall Columbia , MO 65211 | (573) 882-6380 | |
| Gerard Logan Pengo Corporation | 500 E Highway 10 Laurens, IA 50554 | (712) 845-2540 |
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