| Name Organization | Address City, State Zip | Phone Mobile Phone | |
|---|---|---|---|
| Vincent Luongo P.Eng., M. Eng. Petrifond Foundation Company Limited | 8320 St-Laurent Boulevard Montreal, PQ H2P 2M3 | (514) 387-2838 | |
| Thomas Luttermoser Highway Service Company, Inc. | 26401 Hall Road Woodhaven, MI 48183 | (734) 675-1000 | |
| David Lutz Kenco Engineering Inc. | P.O. Box 1467 Roseville, CA 95678 | 916 782-1840 916 947-5550 | |
| Chris Mabie J. Fletcher Creamer & Son, Inc. | 101 East Broadway Hackensack, NJ 7601 | (201) 488-9800 | |
| Emir Macari Louisiana State University | Dept. of Civil/Environmental Engr., 3502 CEBA Baton Rouge, LA 70803 | (225) 578-9175 | |
| Greg MacDonald MacDonald Contracting Australia | P.O. Box 2895 Taren Point, NSW 2229 | 6.1295404622 | |
| Patrick Machin Machin Engineering, LLC | 5 Wooded Valley Dr Traverse City, MI 49696 | (231) 935-1530 | |
| Paul Macklin | 2000 Clay Street, Suite 200 Denver, CO 80211 | (303) 781-9590 | |
| Dan MacLean Keller Foundations Ltd. | 254 Main Street North, Unit 1 Acton, ON L7J 1W9 | (519) 853-3216, Ext. 61225 (647) 228-0300 | |
| Alan Macnab Macnab Consultants | 770 Cordova Bay Rd. Victoria, BC V8Y 1R1 | (778) 430-1257 (778)-533-4443 | |
| Anne Macnab Macnab Consultants | 770 Cordova Bay Rd. Victoria, BC V8Y 1R1 | (778) 430-1257 | |
| Jim MacPhail Pinnacle Drilling Products, LP | 7560 – 48 Street SE Calgary, AB T2C 4J6 | (403) 236-3393 | |
| Jim MacPhail Pinnacle Drilling Products, LP | 7560 – 48 Street SE Calgary, AB T2C 4J6 | (403) 236-3393 | |
| Nathan Maddock | Western Office | 859-230-3090 | |
| Mark Madgett Seaboard Foundations, Inc. | 2157 Highway 75 Blountville, TN 37617 | (423) 323-2100 | |
| Terry Madison Madison Inc. | 36922 SE Sunset View Rd. Washougal, Wa. 98671 | 503-319-3121 | |
| Ashley Mahaffey Tullius Don H. Mahaffey Drilling Co. | 1800 South Alameda Street Compton, California 90221 | 310-668-2030 310-245-6157 | |
| Patrick Mahon GZA GeoEnvironmental of New York | 104 West 29th Street New York, New York 10001 | 212-594-8140 | |
| James Maitland Foundation Engineering, Inc. | 820 NW Cornell Ave Corvallis, OR 97330-4517 | (541) 757-7645 | |
| Jason Malcolm Malcolm Drilling Company, Inc. | 3503 Breakwater Court Hayward, CA 94545 | (510) 780-9181 | |
| John Malcolm Malcolm Drilling Company, Inc. | 92 Natoma Street, Suite 400 San Francisco, CA 94105 | (415) 901-4400 | |
| Aubry Malis Commercial Metals Company | 6565 North MacArthur Blvd, Suite 800 Irving, TX 75039 | (214) 689-4300 | |
| Steve Mallinson P.Eng. Soletanche Bachy Canada | 416 Monument Place South East Calgary, AB T2A 1X3 | (403) 272-5531 | |
| Kathryn Malm Pengo Corporation | 500 E Highway 10 Laurens, IA 50554 | (712) 841-7414 | |
| Rich Mamie Triad Metals International | 3480 Grand Avenue Pittsburgh , PA 15225 | 800-355-1140 |
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