| Name Organization | Address City, State Zip | Phone Mobile Phone | |
|---|---|---|---|
| Claus Ludwig Schnabel Foundation Company | 3075 Citrus Circle, Suite 150 Walnut Creek, CA 94598-2629 | (925) 947-1881 | |
| Harald Ludwig Schnabel Foundation Company | 5210 River Road Bethesda, MD 20816 | (301) 657-3060 | |
| Michael Ludwig Ludwig Drilling, Inc. | P O Box 1059 Castle Rock, CO 80104 | (303) 932-7500 | |
| Richard Ludwig Jr. Elco Drilling Company, Inc. | P.O. Box 50692 Casper, WY 82605-0692 | (307) 235-1355 | |
| Justin Lukens Case Foundation Company | 850 Cassatt Road, Suite 110 Berwyn, PA 19312 | 6103530600 6107635825 | |
| Peter Lulechis Northern Mat & Bridge | 207221 Highway 9 Mono, Ontario L9W 6J | ||
| Ronaldo Luna SLU, Parks College of Engineering, Aviation and Technology | 3450 Lindell Boulevard , McDonnell Douglas Hall, Room 1033A St. Louis , MO 63103 | (314) 977-8372 | |
| Ronaldo Luna Ph.D., P.E., F.ASCE Missouri Univ. of Science & Technology | Department of Civil, Arch. & Env. Engineerin 130 B, 1401 N. Pine Street Rolla, MO 65409 | (573) 341-4484 | |
| Larrie Lund Lund Enterprises, Ltd. | #9 Hart Place St. Albert, AB T8N 5R1 | (780) 458-5863 | |
| Andy Lundgren Bearing Chain & Supply, Inc. | 1814 Mony Street Fort Worth, TX 75234 | (817) 877-0330 | |
| Vincent Luongo P.Eng., M. Eng. Petrifond Foundation Company Limited | 8320 St-Laurent Boulevard Montreal, PQ H2P 2M3 | (514) 387-2838 | |
| Chris Mabie J. Fletcher Creamer & Sons, 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 |
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