Attached files

file filename
EX-32.2 - EX-32.2 - MASTEC INCmtz12312010-kex322.htm
EX-32.1 - EX-32.1 - MASTEC INCmtz12312010-kex321.htm
EX-31.2 - EX-31.2 - MASTEC INCmtz12312010-kex312.htm
EX-31.1 - EX-31.1 - MASTEC INCmtz12312010-kex311.htm
EX-23.1 - EX-23.1 - MASTEC INCmtz12312010-kex231.htm
EX-10.12 - EX-10.12 - MASTEC INCmtz12312010-kex1012.htm
EX-10.5 - EX-10.5 - MASTEC INCmtz12312010-kex105.htm
EX-10.3 - EX-10.3 - MASTEC INCmtz12312010-kex103.htm
10-K - 10-K - MASTEC INCmtz-20201231.htm

Exhibit 21

MasTec, Inc.
SUBSIDIARIES OF MASTEC, INC.
December 31, 2020
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 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.