| CHURCH & TOWER, INC. (L95201) | Secr |
| DAMINAL, LLC (L22000185460) | AMBR |
| DYNAMIC TOWER SERVICES, INC. (F15000002611) | Secretary |
| ENERGY ERECTORS, INC. (P01000016220) | Secr |
| MASTEC BRAZIL I, INC. (P99000003070) | Secr |
| MASTEC CIVIL CONSTRUCTORS, LLC (L19000251211) | MGR, |
| MASTEC RESIDENTIAL SERVICES, LLC (L09000072831) | EVP |
| POWER PARTNERS MASTEC, INC. (P10000076410) | Secr |
| ALLIANDACH DEVELOPMENT, INC. (P00000034643) | Pres |
| BIANCHI ELECTRIC, LLC (M19000002163) | Assi |
| CAM COMMUNICATIONS OF MARYLAND, INC. (F11000004412) | Secr |
| CASEY INDUSTRIAL, INC. (P35133) | Secr |
| CCM INVESTMENT HOLDING CO. (P13000090262) | Secr |
| MASTEC BRAZIL II, INC. (P99000003203) | Secr |
| MASTEC ETS SERVICE COMPANY, LLC (L13000122114) | Secr |
| MASTEC NETWORK SOLUTIONS, LLC (L08000073102) | VP, |
| MCC INVESTMENT AND HOLDINGS, LLC (L20000385603) | Asst |
| PHOENIX INDUSTRIAL, INC. (F10000000833) | Asst |
| QUADGEN WIRELESS SOLUTIONS INC. (F19000004533) | Secr |
| SUPPORT OPERATIONS SERVICES, LLC (L21000263773) | Secr |
| WHITE CONSTRUCTION OF INDIANA, LLC (M19000001723) | Secr |
| BOLIVE, LLC (M21000010945) | MGR |
| HANGING H COMPANIES, LLC (M17000006965) | Asst |
| IEA EQUIPMENT MANAGEMENT, LLC (M19000001534) | Secr |
| MASTEC INDUSTRIAL CORP. (P15000062085) | Secr |
| MASTEC WEST, LLC (M23000011644) | Secretary |
| PRECISION DEWATERING, LLC (L18000079034) | Secr |
| CARECLOUD CORPORATION (P09000000846) | DIR |
| CASH CIVIL CONSTRUCTION, INC. (F19000001486) | ASST |
| CONDOTTE AMERICA INC. (M62587) | Asst |
| HENKELS & MCCOY WEST, LLC (L22000338866) | Secr |
| INTERNATIONAL MEDIA CONSULTANTS, INC. (M57406) | PD |
| INTREN WEST, LLC (L22000338876) | Secr |
| INTREN, LLC (M21000008296) | Asst |
| KINGSLEY CONSTRUCTORS, INC. (F21000002746) | Secretary |
| LATIN AMERICA EXPORTS & SERVICES INC. (624226) | VD |
| MASTEC FFH, INC. (P14000088436) | Secr |
| MASTEC INFRASTRUCTURE HOLDINGS, LLC (L21000071686) | MGR |
| MASTEC VENEZUELA, INC. (P99000000936) | Secr |
| NEW STOUT EXCAVATING GROUP TEXAS, LLC (M23000002606) | Secretary |
| PRECISION FABRICATION SERVICES, LLC (L18000079006) | Secr |
| PRECISION WEST, LLC (L17000205527) | Secr |
| PRETEC DIRECTIONAL DRILLING, LLC (L16000052335) | Secr |
| BRODE, LLC (L18000226479) | S,VP |
| BYERS ENGINEERING COMPANY (842038) | Secr |
| DECISIVE COMMUNICATIONS, INC. (F16000002398) | Asst |
| ENVIRONMENTAL AND DEWATERING SOLUTIONS, LLC (L20000206048) | Secr |
| HMI SERVICES, INC. (F16000002228) | Secr |
| MASTEC CIVIL, LLC (L20000388819) | Assi |
| MASTEC MEXICO FOREIGN HOLDINGS, LLC (L14000050998) | Auth |
| MASTEC MEXICO HOLDING COMPANY, LLC (L13000178358) | Secr |
| MASTEC SERVICES COMPANY, INC. (P97000088258) | Secr |
| MASTEC SPAIN, INC. (P99000000938) | Secr |
| MASTEC UTILITY SERVICES, LLC (L21000323648) | Secr |
| OPTIMA NETWORK SERVICES, INC. (F12000003398) | Secr |
| PRECISION ENGINEERING SOLUTIONS, LLC (L18000087199) | SECR |
| PRECISION INFRASTRUCTURE, LLC (L18000083449) | Secr |
| PRECISION PIPELINE LLC (M09000000108) | Asst |
| SOUTHPAW FENCING LLC (M20000005029) | Secr |
