| Sub-Contractor | See Also | Options |
|---|---|---|
| Magnus Metals | view | |
| Mahaffey Enterprises | Mahaffey Excavation | view |
| Mahan Construction Co. | view | |
| Mahout Construction | view | |
| Mahr Federal, Inc. | view | |
| Maikes Painting | view | |
| Main Electric | view | |
| Main Floor Covering Company | view | |
| Main Line Supply Co. | Main Line Supply Inc. | view |
| Main Sail, LLC | view | |
| Maine Yankee | view | |
| Mainline Electric | view | |
| Maintenance Support | view | |
| Major Mechanical Corp. | view | |
| Major Supply Corporation | view | |
| Major Systems, Inc. | view | |
| Major Tool and Machine | view | |
| Makota Construction | view | |
| Malan Construction Corp. | view | |
| Malarkey & Moore | Marlarkey | view |
| Malcolm Drilling Co., Inc. | view | |
| Mallinckrodt Chemical Co. | Mallinckrodt Chemical Works | view |
| Mallory Sharon Metals Corp. | view | |
| Mallory Supply Company | view | |
| Mallott, Peterson, Renner | view | |
| Malone Freight | view | |
| Maloney, Harrington & Lund | Maloney, Herrington, Freesz & Lund; Meloney, Herrington, Freesz and Lund | view |
| Maltby Tank | Matlby Tank | view |
| Malvern Instruments Inc | view | |
| Mamba Engineering Co. | view | |
| Mameco Int. | view | |
| Man Barrier Corp. | view | |
| Man Power | view | |
| Manafort Brothers Incorporated | view | |
| Management Analysis Corporation | view | |
| Management Recruiters | view | |
| Management Services, Inc. | M.S.I.; MSI | view |
| Management Solutions, LLC | view | |
| Management Strategies Inc. | view | |
| Management Systems Laboratory | view | |
| Maner Builders Supply | view | |
| Mangrum Roofing Co. | view | |
| Manhattan Construction | view | |
| Manhattan Environmental Inc. | view | |
| Mani Strategic Solutions, LLC | view | |
| Manitou Equipment Company | view | |
| Manitowoc Western Engineering Co. | view | |
| Manke & Sons, Inc. | view | |
| Mann Construction Company | view | |
| Manning Environmental | view | |
| Manning, Maxwell & Moore, Inc. | view | |
| Manor Heating | view | |
| Manor Painting & Decorating Company | view | |
| Manpower | view | |
| Mansback Co. | view | |
| Mansfield Flooring Co., Inc. | view | |
| Mansfield Industrial Coatings, Inc. | view | |
| Manson Engineering & Construction Company | view | |
| Mansville Sales Corp. | view | |
| Manta Corp. | view | |
| Mantech International Corporation | view | |
| Manufactured Structures Corp. | view | |
| Manufacturers of Dia Bits | view | |
| Manufacturing Science Corporation | MSC | view |
| Manufacturing Technology, Inc. | view | |
| March Metalfab Inc. | view | |
| MARCO Remediation, Inc. | view | |
| MarCom, LLC | view | |
| Marcon Excavating, Inc. | view | |
| Marconi Medical System | view | |
| Marconi, Inc. | view | |
| Marcor Management | view | |
| Marcraft Corporation | view | |
| Marcum Inc. | view | |
| Marcum Mechanical | view | |
| Mariemont High School | view | |
| Marietta Structures Corp. | view | |
| Marine & Industrial Electric | view | |
| Marine Services | view | |
| Marine/Environmental Testing | view | |
| Marino & Industrial Supply, Inc. | view | |
| Mark Douglas Concrete | view | |
| Mark I Industries | view | |
| Mark Steel Corp. | view | |
| Mark's Electric | view | |
| Markal Construction | view | |
| Marker, Inc. | view | |
| Markes International Inc | view | |
| Markham Occupational | view | |
| Markman | view | |
| Marlex Express | view | |
| Marley Construction Co. | view | |
| Marley Erectors | The Marley Company; Marley Co. | view |
| Marlin D Johnson | view | |
| Marmon Keystone | view | |
| Marquez | view | |
| Marquez Construction Inc. | view | |
| Marquez Mechanical | view | |
| Marrich, Inc. | view | |
| Marriot Corporation | view |
BTComp is a general information resource tool. It is not intended to nor does it contain all information that relates to DOE subcontractors. We reserve the right to add or delete entries at any time. We make no warranty, expressed or implied, with respect to either the completeness of the database or the accuracy of the entries on the website.