| Kenneth Butler Construction LLC | Paris | TX | $0 |
| Kent Woods Excavating LLC | Kodak | TN | $0 |
| Kevin Kent Const. LLC | Lucas | IA | $0 |
| Kinetic Energy Services LLC | Lucerne | CO | Subcontractor |
| K&K Adams, Inc. | Windsor Mill | MD | $0 |
| K & M Dirt Services, LLC | Oklahoma City | OK | Subcontractor |
| Kolb Grading, LLC | Weldon Spring | MO | Subcontractor |
| Kratos Services, LLC | Cedar Park | TX | Subcontractor |
| Ladd Construction & Demolition LLC | Liberty Lake | WA | $0 |
| Landmark Construction Company, Inc. | Charleston | SC | Subcontractor |
| Landmark Grading Company, Inc. | Fort Mitchell | AL | $0 |
| Landwerks Contracting, Inc. | Suffolk | VA | Subcontractor |
| Landworx LLC | Woodbury | TN | $0 |
| Larry Lang Excavating Inc. | Beverly | OH | $0 |
| Lawing & Son Site Contractor, L.L.C. | Flat Rock | NC | Subcontractor |
| Lawyer Excavation, Inc. | Seymour | IN | $0 |
| Lb Landscaping, Inc. | El Paso | TX | $0 |
| L. D. Hanna & Son Inc. | Lewisburg | WV | $0 |
| Ledford & Parker Inc. | Hayesville | NC | $0 |
| Lems Contracting Co. Inc. | Belcamp | MD | Subcontractor |
| Les Manske & Sons Excavating & Landscaping LLC | Stoddard | WI | $0 |
| Les Rogers Inc. | Fayetteville | AR | $0 |
| Lester Contracting Inc. | Port Lavaca | TX | $0 |
| Lewis Equipment Services LLC | Hualapai | AZ | $0 |
| LGT Construction LLC | Portales | NM | Subcontractor |
| Liberty Excavators Inc. | Camp Hill | PA | $0 |
| Lindlers Construction Of South Carolina LLC | Newberry | SC | Subcontractor |
| Lippert Excavation & Pipeline Inc. | Sandpoint | ID | $0 |
| Lockwood Remediation Technologies, LLC | Leominster | MA | Subcontractor |
| Machnik Bros., Inc. | Old Lyme | CT | Subcontractor |
| Magner Brian | Breda | IA | $0 |
| Mainline Excavating Inc. | Harrisburg | PA | $0 |
| Marcyes Excavating Inc. | Long Prairie | MN | $0 |
| Mark Haynes Construction Inc. | Norwalk | OH | $0 |
| Markowski Excavating, Inc. | Florence | VT | $0 |
| Mark Switzer Excavating | Paso Robles | CA | $0 |
| Marshalls Excavating Incorporated | Newburg | MD | Subcontractor |
| Marugg Michael | La Center | WA | $0 |
| Mass-west Construction, Inc. | Granby | MA | $0 |
| Matelich Crane Pier & Piling Inc. | Kalispell | MT | $0 |
| Matriarch Construction, Inc. | Laurel | MT | $0 |
| Matt Beard Excavating LLC | Branson | MO | $0 |
| Maverick Construction Management Services Inc. | Oxford | MA | Subcontractor |
| MC2 USA Inc. | Dupo | IL | Subcontractor |
| Mcaninch Corporation | Des Moines | IA | Subcontractor |
| Mccarty Excavation And Construction, Inc. | Bayfield | CO | $0 |
| Mcconnell Enterprises, Inc. | Essex | MA | $0 |
| Mcdonagh Demolition, Inc. | Chicago | IL | Subcontractor |
| Mcgillan Inc. | Fort Fairfield | ME | Subcontractor |
| Md Construction Co. Inc. | Santa Maria | CA | $0 |
| Michael Paul Company Inc. | Petaluma | CA | $0 |
| Midwest Easement Services LLC | Vandalia | IL | $0 |
| Midwest Wrecking Co. L.L.C. | Oklahoma City | OK | Subcontractor |
| Millennium Construction & Consulting Inc. | Billings | MT | $0 |
| Miller Construction Company, LLC | Anderson | SC | $0 |
| MKJ Construction LLC | Fairview | UT | Subcontractor |
| M & M Contracting, Ltd. | San Antonio | TX | Subcontractor |
| Mmi Excavation LLC | Bismarck | ND | $0 |
| Mockel Precast & Excavating Co. | East Helena | MT | $0 |
| Mohawk Drilling, Inc. | Tulsa | OK | Subcontractor |
| Monarch Development, Inc. | Issaquah | WA | $0 |
| Mon Landscaping Inc. | North Dartmouth | MA | Subcontractor |
| Monsters Contracting, Inc. | Fargo | ND | Subcontractor |
| Moretto Giuseppe S.R.L. | Pordenone | | $0 |
| Morgan Corp. | Duncan | SC | Subcontractor |
| Motley-motley, Inc. | Pullman | WA | $0 |
| Mountaineer Infrastructure LLC | Dryfork | WV | $0 |
| Mountain Excavators, Inc. | Cashmere | WA | $0 |
| M&P Venture Partners Demolition, LLC | Avondale | AZ | Subcontractor |
| Muller, Inc. | Reston | VA | Subcontractor |
| Nannini & Callahan Excavating Inc. | Cornwall | NY | Subcontractor |
| Naquin Precision Earth Moving, Inc. | Roll | AZ | $0 |
| National Salvage & Service Corp. | Bloomington | IN | $0 |
| National Wrecking Company | Chicago | IL | Subcontractor |
| NDX LLC | North Las Vegas | NV | Subcontractor |
| Ned J Gunn | Mounds | IL | $0 |
| Nelson Lewis, Inc. | Marble Falls | TX | Subcontractor |
| Nixcavating, Inc. | Longmont | CO | $0 |
| Nix Excavating, Inc. | Filer | ID | $0 |
| Northeastern Engineering & Contracting Company LLC | Willington | CT | Subcontractor |
| Northern Dewatering Inc. | Rogers | MN | $0 |
| Northstar Contracting Group Inc. | Santa Fe Springs | CA | Subcontractor |
| Northstar Demolition And Remediation, Inc. | Denver | CO | $0 |
| North Suburban Tree Service, Inc. | Gibsonia | PA | Subcontractor |
| Northwest Demolition & Dismantling Inc. | Portland | OR | Subcontractor |
| Oregon Grading Service, LLC | Eugene | OR | $0 |
| Osteen Brothers Inc. | Micanopy | FL | $0 |
| Pacific Concrete Cutting & Coring, Inc. | Lihue | HI | Subcontractor |
| Pacific Ponderosa Co. Inc. | Lakeside | AZ | $0 |
| Pacific Rim Grading Inc. | Simi Valley | CA | Subcontractor |
| Paragon Sitework Constructors Inc. | Summerville | SC | Subcontractor |
| Pardee Excavating Limited Liability Co. | Thompson Falls | MT | $0 |
| Parker Construction Enterprises, Inc. | Camp Verde | AZ | $0 |
| Park Range Construction, Inc. | Englewood | CO | Subcontractor |
| Parrotta Paving Co. Inc. | Morgantown | WV | $0 |
| Patriot Demolition Services LLC | Mount Juliet | TN | Subcontractor |
| Patriotic Paving & Maintenance LLC | Pensacola | FL | Subcontractor |
| Paul Haarstad Excavating LLC | Rothsay | MN | $0 |
| Paul Lynn Construction, LLC | Vicksburg | MS | $0 |
| Pearsons Dirtwork & Trucking Inc. | Des Moines | IA | $0 |
