Exhibit 21
MasTec, Inc.
SUBSIDIARIES OF MASTEC, INC.
December 31, 2019
NORTH AMERICA
Cash Construction Company, Inc. (TX) | (100% owned by MasTec North America, Inc.) |
EC Source Services, LLC (FL) | (100% owned by MasTec, Inc.) |
MasTec Canada, Inc. (Canada) | (100% owned by Pacer Construction Holdings Corporation (Canada)) (100% owned by MasTec Canadian Holdco ULC (Canada)) (100% owned by MasTec Cooperateif (UA)) |
MasTec Comanche, LLC (FL) | (100% owned by MasTec Pipeline Holdings, LLC) |
MasTec Cooperateif (UA) (NL) | (99.99% owned by MasTec North America, Inc.) (0.01% owned by MasTec Foreign Holdings, LLC (FL)) |
MasTec Lux Foreign Finance S.a r.l. | (100% owned by MasTec FFH, Inc. (FL)) (100% owned by MasTec North America, Inc.) |
MasTec Network Solutions, LLC f/k/a Nsoro MasTec, LLC (FL) | (100% owned by MasTec, Inc.) |
MasTec North America, Inc. (FL) | (100% owned by MasTec, Inc.) |
MasTec Pipeline Holdings, LLC (FL) | (100% owned by MasTec, Inc.) |
MasTec TPP, LLC (FL) | (100% owned by MasTec Pipeline Holdings, LLC) |
Precision Pipeline LLC (WI) | (100% owned by Precision Acquisition, LLC (WI)) (100% owned by MasTec, Inc.) |
Pumpco, Inc. (TX) | (100% owned by MasTec North America, Inc.) |
SEFNCO Communications, Inc. (CA) | (100% owned by MasTec North America, Inc.) |
Three Phase Line Construction, Inc. (NH) | (100% owned by Three Phase Acquisition Corp. (NH)) (100% owned by MasTec, Inc.) |
Wanzek Construction, Inc. (ND) | (100% owned by MasTec North America, Inc.) |
Certain other subsidiaries have been omitted because, in the aggregate, they would not constitute a significant subsidiary.