| A-1 Excavating, LLC | Wisconsin | ||||
| A-1 Express Trucking, LLC | Wisconsin | ||||
| A1 Traffic Control & Safety, LLC | Colorado | ||||
| Acietel Mexicana, S.A. | Mexico | ||||
| Aidco de Mexico, S.A. de C.V. | Mexico | ||||
| American Civil Constructors West Coast, LLC | California | ||||
American Civil Constructors, LLC ACC Mountain West | Colorado | ||||
| Bakken Aggregates, LLC | Arizona | ||||
| Belividere Stone, LLC | Illinois | ||||
| Bianchi Electric, LLC | Delaware | ||||
| Biggs Construction Company, Inc. | Virginia | ||||
| BLDM – Precision, LLC | Puerto Rico | ||||
| Bottom Line Services, LLC | Delaware | ||||
| Broadband Access Services, Inc. | New Hampshire | ||||
Byers Engineering Company Byers Technical Services, Inc. | Georgia | ||||
| C&T Insurance Company | Vermont | ||||
| Casey Industrial, Inc. | Oregon | ||||
| Cash Construction Company, Inc. | Texas | ||||
| CCM Investment Holding Co. | Florida | ||||
| CE&I Services, LLC | Florida | ||||
| Church & Tower, Inc. | Florida | ||||
| CIDE Engenharia, Ltda. | Brazil | ||||
| CJ 320, LLC | Arizona | ||||
| Condotte – Ryan JV | Florida | ||||
| Condotte America Industrial Properties, LLC | Florida | ||||
| Condotte America Properties, LLC | Florida | ||||
| Condotte de Moya JV | Florida | ||||
| Confluence Networks, LLC | Florida | ||||
| Consolidated Construction Solutions I, LLC | Delaware | ||||
| Consolidated Construction Solutions II, LLC | Delaware | ||||
| Decisive Communications, Inc. | Maryland | ||||
| DPK, LLC | Delaware | ||||
| East State Stone, LLC | Delaware | ||||
| EC Source Services, LLC | Florida | ||||
| ECS West, LLC | Florida | ||||
| Energy Erectors, Inc. | Florida | ||||
| Environmental and Dewatering Solutions, LLC | Florida | ||||
| Environmental Contractors, LLC | Illinois | ||||
| Florence 80, LLC | Arizona | ||||
| FNF Construction, Inc. | Arizona | ||||
| FNF New Mexico, LLC | New Mexico | ||||
| Foothills Energy Services, Inc. | Colorado | ||||
| Forest City Logistics, LLC | Delaware | ||||
| GGI Constructors JV | Florida | ||||
| H&M Shared Services, Inc. | Pennsylvania | ||||
| H.B. White Canada Corp. | Canada | ||||
| Hanging H Companies, LLC | Colorado | ||||
| Henkels & McCoy Holdings, Inc. | Pennsylvania | ||||
| Henkels & McCoy West, LLC | Florida | ||||
| Henkels & McCoy, Inc. | Pennsylvania | ||||
| HMSS Realty Co., LLC | Pennsylvania | ||||
| IEA Constructors, LLC | Wisconsin | ||||
| IEA Energy Services, LLC | Delaware | ||||
| IEA Engineering North Carolina, LLC | North Carolina | ||||
| IEA Engineering, LLC | Michigan | ||||
| IEA Equipment Management, LLC | Delaware | ||||
| IEA Intermediate Holdco, LLC | Delaware | ||||
| IEA Management Services, Inc. | Delaware | ||||
| Illinois CCDD Operating Co., LLC | Illinois | ||||
| Infrastructure and Energy Alternatives, Inc. | Delaware | ||||
| Infrastructure Development Holdings, Inc. | Arizona | ||||
| Infrastructure Holdings Corporation | Delaware | ||||
| Intren West, LLC | Florida | ||||
Intren, LLC L2 Construction Management Solutions Trench-It | Illinois | ||||
| John's Stone, LLC | Delaware | ||||
| Johnston Quarry Holdings, LLC | Delaware | ||||
JRD Texas, LLC Maslonka Powerline Services | Texas | ||||
| Kingsley Constructors, Inc. | Texas | ||||
| Lemartec Corporation | Florida | ||||
| Lemartec PR Corporation | Puerto Rico | ||||
| Lemartec USVI, Inc. | U.S. Virgin Islands | ||||
| Masco Energy Holdings, LLC | Florida | ||||
| MasCo PR, LLC | Puerto Rico | ||||
| MasTec Brasil S/A | Brazil | ||||
| MasTec Brazil I, Inc. | Florida | ||||
| MasTec Brazil II, Inc. | Florida | ||||
| MasTec Canadian Holdco, Inc. | Canada | ||||
| MasTec Caribbean KY, Ltd | Caymans | ||||
| MasTec Caribbean PR, LLC | Puerto Rico | ||||
| MasTec Civil Constructors, LLC | Florida | ||||
MasTec Civil, LLC Condotte America, LLC | Florida | ||||
| MasTec Comanche, LLC | Florida | ||||
| MasTec Condotte Holdings, LLC | Florida | ||||
| MasTec Engineering Corp. | Michigan | ||||
| MasTec ETS Service Company, LLC | Florida | ||||
| MasTec EV Solutions, LLC | Delaware | ||||
| MasTec Foreign Holdings, LLC | Florida | ||||
| MasTec India Holdings, LLC | Florida | ||||
MasTec Industrial Corp. MasTec Power Corp. | Florida | ||||
| MasTec Infraestructuras de Mexico, S. de R.L. de C.V. | Mexico | ||||
| MasTec Infrastructure Holdings, LLC | Florida | ||||
| MasTec International, LLC | Florida | ||||
| MasTec Latin America Holdings, LLC | Delaware | ||||
| MasTec Latin America, Inc. | Delaware | ||||
| MasTec Mexico Foreign Holdings, LLC | Florida | ||||
MasTec Mexico Holding Company, LLC MasTec Crane & Equipment Services, Inc. MasTec Mexico Holding Company, Inc. | Florida | ||||
| MasTec Network Services Colombia S.A.S. | Colombia | ||||
| MasTec Network Solutions Puerto Rico, Inc. | Puerto Rico | ||||
| MasTec Network Solutions, Inc. Nsoro MasTec, Inc. | Florida | ||||
MasTec Network Solutions, LLC Nsoro Acquisition, LLC Nsoro MasTec, LLC | Florida | ||||
| MasTec North America, Inc. | Florida | ||||
| MasTec Nsoro Procurement Company, LLC | Florida | ||||
| MasTec Participacoes Do Brasil LTDA | Brazil | ||||
| MasTec Philippines, LLC | Florida | ||||
| MasTec Pipeline Argentina, LLC | Florida | ||||
| MasTec Pipeline Holdings, LLC | Florida | ||||
| MasTec Precision, LLC | Puerto Rico | ||||
| MasTec Property Holdings, LLC | Nevada | ||||
| MasTec Puerto Rico Engineering Services Holding, LLP | Florida | ||||
| MasTec Puerto Rico Holdings, LLC | Puerto Rico | ||||
| MasTec Purnell Canada, Inc. | Canada | ||||
| MasTec Quadgen Wireless, LLP | India | ||||
| MasTec Renewables Construction Company, Inc. | Florida | ||||
| MasTec Renewables Puerto Rico, LLC | Puerto Rico | ||||
MasTec Services Company, Inc. Central America Construction, Inc. | Florida | ||||
| MasTec Servicios Publicos Soterrados, S. de R. L. | Panama | ||||
| MasTec Solutions Puerto Rico, LLC | Puerto Rico | ||||
| MasTec Spain, Inc. | Florida | ||||
| MasTec TPP, LLC | Florida | ||||
| MasTec Utility Services, LLC | Florida | ||||
| MasTec Venezuela, Inc. | Florida | ||||
| MasTec West, LLC | Delaware | ||||
MasTec Wireless Services, LLC MasTec North America AC, LLC Nsoro Construction Services, LLC | Florida | ||||
| MBS Investors, LLC | Pennsylvania | ||||
| MCC Investment and Holdings, LLC | Florida | ||||
| Meadow Valley Trucking, Inc. | Nevada | ||||
| MNS South, LLC | Florida | ||||
| MP Drilling Holdings, LLC | Florida | ||||
| MSTEC Enterprises Mexico | Mexico | ||||
| MTCO Energias de Mexico, S. de R.L. de C.V. | Mexico | ||||
| MTZ Energias S. de R.L. de C.V. | Mexico | ||||
| MTZ Enterprises, S. de R.L. de C.V. | Mexico | ||||
| MTZ Purnell, Inc. | Canada | ||||
| Mulford Stone, LLC | Delaware | ||||
| NALL Communications, LLC | Washington | ||||
| New A-1 Express, LLC | Texas | ||||
| New A-1 Power, LLC | Wisconsin | ||||
| New Stout Excavating Group Texas, LLC | Texas | ||||
| New Stout Excavating Group, LLC | Wisconsin | ||||
| Nsoro MasTec India Private, Ltd. | India | ||||
| Nsoro MasTec International, Inc. | Nevada | ||||
| NV2A Bahamas, LLC | Bahamas | ||||
| NV2A Construction, LLC | Florida | ||||
| NV2A Group, LLC | Florida | ||||
| NV2A Infrastructure, LLC | Florida | ||||
| Phoenix Industrial, Inc. | Washington | ||||
| Porter Brothers, LLC | Illinois | ||||
| Porter's Stone, LLC | Delaware | ||||
| PPMASI Klamath I, LLC | Delaware | ||||
| Precision Acquisition, LLC | Wisconsin | ||||
| Precision Aggregate Products, LLC | Nevada | ||||
| Precision Dewatering, LLC | Florida | ||||
| Precision Engineering Solutions, LLC | Florida | ||||
| Precision Fabrication Services, LLC | Florida | ||||
| Precision Infrastructure, LLC | Florida | ||||
| Precision Pipeline, LLC | Wisconsin | ||||
| Precision Transport Company, LLC | Wisconsin | ||||
| Precision West, LLC | Florida | ||||
| Pretec Directional Drilling, LLC | Florida | ||||
| Pumpco, Inc. | Texas | ||||
| Quadgen Wireless Solutions, Inc. | Delaware | ||||
| R&J Leasing, Inc. | New Hampshire | ||||
| R.J. Carroll Company, LLC | Texas | ||||
| Ragnar Benson, LLC | Illinois | ||||
| Rhino Cable Services, Inc. | Pennsylvania | ||||
| Rockford Blacktop Construction Co., LLC | Illinois | ||||
| Saiia Construction Company, LLC | Delaware | ||||
| Saiia Holdings, LLC | Delaware | ||||
| SEFNCO Communications, Inc. | Washington | ||||
| Sequoia Utility Services, LLC | Florida | ||||
| Shade Tree Service Company | Missouri | ||||
| Stout Construction, LLC | Wisconsin | ||||
| Stout Trucking, LLC | Wisconsin | ||||
| Structors, Inc. | Illinois | ||||
| Support Operations Services, LLC | Florida | ||||
| SUS Holdings, LLC | Florida | ||||
| T & D Power, Inc. | Nevada | ||||
| Thornton 40, LLC | Arizona | ||||
| Three Phase Line Construction, Inc. | New Hampshire | ||||
| Three-Way 28, LLC | Arizona | ||||
| Union Real Estate, LLC | Illinois | ||||
| Utility Services Group West, LLC | Florida | ||||
| Wanzek Construction, Inc. | North Dakota | ||||
| White Construction Energy Services, LLC | Delaware | ||||
| White Construction, LLC | Indiana | ||||
| William Charles Construction Company, LLC | Illinois | ||||
| William Charles Electric, LLC | Delaware | ||||
| William Charles Purchasing, Inc. | Illinois | ||||
| William Charles, Inc. | Nevada | ||||
| WYCO Field Services, LLC | Wyoming | ||||