EXPERTISE PROJECTS ABOUT INVESTORS SUSTAINABILITY NEWS CAREERS CONTACT Operating Entities We predominately operate under the MasTec brand umbrella across the country, but we also operate under expertise-based entities that we’ve acquired through the years in order to grow our business and support our customers. MASTEC OIL & GAS MASTEC NETWORK SOLUTIONS MASTEC CLEAN ENERGY & INFRASTRUCTURE MASTEC UTILITY SERVICES MASTEC TRANSMISSION & SUBSTATION MASTEC ADVANCED TECHNOLOGIES Learn More About Our Expertise COMMUNICATIONS OIL & GAS POWER GENERATION POWER DELIVERY CIVIL & INDUSTRIAL TECHNOLOGY DEPLOYMENT WATER & SEWER EXPERTISE Communications Oil & Gas Power Generation Power Delivery Civil & Industrial Technology Deployment Water & Sewer ABOUT Our Story Operating Entities Scholarship Program INVESTORS Overview Financial Reporting Investor News Events & Presentations Corporate Governance Information Request SUSTAINABILITY Sustainability Framework Sustainability Governance PROJECTS NEWS CAREERS CONTACT MasTec, Inc. 800 S. Douglas Road 10th Floor Coral Gables, FL 33134 305.599.1800 © 2021 MasTec. All Rights Reserved. Privacy Terms Site Map Employee Login Website by Moncur

EXPERTISE PROJECTS ABOUT INVESTORS SUSTAINABILITY NEWS CAREERS CONTACT POWER DELIVERY Home ExpertisePower Delivery Electric transmission and distribution services. As one of the nation's leading electric transmission line construction companies, MasTec engineers and constructs efficient and reliable electrical transmission, distribution and substation systems. Our extensive workforce includes both union and nonunion teams which, combined with our specialized equipment fleet, allows us to effectively meet our client's needs for power delivery, emergency restoration, and on-going maintenance. We've been involved in some of the most challenging and recognizable electric projects across the U.S. From the electric plant, to the end users, our experienced managers and crews consistently deliver transmission, substation, and distribution services with an unfailing commitment to safety, emergency restoration, and environmental concerns. TRANSMISSION SYSTEMS SUBSTATIONS AND SWITCHYARDS DISTRIBUTION SYSTEMS EMERGENCY RESTORATION SMART GRID MAINTENANCE Services Provided by: PROJECT SPOTLIGHT Des Plaines / River Road Des Plaines, IL 1 mile of roadway widening through commercial and residential downtown Des Plaines, IL. LEARN MORE Learn More About Our Expertise COMMUNICATIONS OIL & GAS POWER GENERATION POWER DELIVERY CIVIL & INDUSTRIAL TECHNOLOGY DEPLOYMENT WATER & SEWER EXPERTISE Communications Oil & Gas Power Generation Power Delivery Civil & Industrial Technology Deployment Water & Sewer ABOUT Our Story Operating Entities Scholarship Program INVESTORS Overview Financial Reporting Investor News Events & Presentations Corporate Governance Information Request SUSTAINABILITY Sustainability Framework Sustainability Governance PROJECTS NEWS CAREERS CONTACT MasTec, Inc. 800 S. Douglas Road 10th Floor Coral Gables, FL 33134 305.599.1800 © 2021 MasTec. All Rights Reserved. Privacy Terms Site Map Employee Login Website by Moncur