Mastec, Inc. · NYSE:MTZ

Mastec — Investor Presentation (December 2025)

75 slides from Mastec's investor presentation, Dec 1, 2025

  1. Slide 1: MasTec Investor Presentation

    MasTec Investor Presentation December 1, 2025 NYSE: MTZ

  2. Slide 2: Safe Harbor Statement

    Safe Harbor Statement This presentation contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act. Forward-looking statements include, but are not limited to, statements relating to expectations regarding the future financial and operational performance o

  3. Slide 3: Safe Harbor Statement

    Safe Harbor Statement including from climate-related events, that affect our customers, projects and the industries in which we operate; requirements of and restrictions imposed by our credit facility, term loans, senior notes and any future loans or securities; systems and information technology in

  4. Slide 4: MasTec: Positioned for Structural Growth

    MasTec: Positioned for Structural Growth ❖ Market-leading critical infrastructure company well aligned with positive macro growth drivers ❖ Diversified service offerings and end-market exposures should enhance relative growth stability and financial resiliency ❖ Predictable business model includes s

  5. Slide 5: MasTec: Diversified, Customer Centric Growth

    MasTec: Diversified, Customer Centric Growth Growth Pillars Our Mission o Serve our customers safely and reliably while building long-term partnerships Clean Energy & Infrastructure o Grow profitably while delivering excellent customer service o Act with integrity in all communities where we work o

  6. Slide 6: MasTec at a Glance

    MasTec at a Glance 1 95+ YEARS 32,000+ $3.6 B 770+ EXPERIENCE EMPLOYEES EQUIPMENT LOCATIONS FLEET (gross) $12.3 B REVENUE #4 Top 400 # 347 NYSE: MTZ MINORITY ENR CONTRACTORS LARGEST SINCE 1997 CONTROLLED COMPANY COMPANY An E&C leader in key infrastructure 2 1 All data based on 2024 actuals. 6 2 Data

  7. Slide 7: Diversified Growth Pillars and Demand Drivers

    Diversified Growth Pillars Clean Energy & Infrastructure Communications1 Power Delivery1 Pipeline Infrastructure 2024 Revenue $4.1 B $2.5 B $3.6 B $2.1 B • Renewable Energy • Fiber to the Home • Grid Reliability and • Natural Gas Pipelines • Infrastructure • Rural Broadband / Expansion • Pipeline Di

  8. Slide 8: Portfolio Diversification Helps Mitigate Risk

    Portfolio Diversification Helps Mitigate Risk1 Revenues by Segment2 Revenues by Customer Type Communications Pipeline 21% Infrastructure 17% Utilities & Renewable Energy Communications Developers 21% 47% Power Delivery Clean Energy & 29% Infrastructure 33% Pipeline Dept of Transportation, 17% Munici

  9. Slide 9: Well Aligned With Macro Growth Drivers

    Well Aligned With Macro Growth Drivers System Modernization & Resilience Infrastructure Electrification & Modernization, Macro Drivers For Decarbonization, Industrial Reshoring Load Growth Create Energy Transition Demand For Energy Infrastructure Enabling Emerging Technologies 9

  10. Slide 10: Predictable Business Model

    Predictable Business Model MSA contracts ~40% of Long-term partnerships revenue provides with key customers stability1 Durable demand drivers Significant project across MasTec’s end capacity at scale; markets proven reliability MasTec’s national Design-build capability presence enables deep sets Mas

  11. Slide 11: Blue Chip & Diverse Customer Base

    Blue Chip & Diverse Customer Base LOW CUSTOMER CONCENTRATION Communications Largest customer Clean Energy & 8% Infrastructure of 2024 Revenues Power Delivery Top 10 customers 35% Pipeline of 2024 Infrastructure Revenues 11

  12. Slide 12: Track Record of Strong Growth

    Track Record of Strong Growth 2008-2010 16 Years of Significant Growth Strategic Diversification Transformative acquisitions in wireless, Revenue CAGRs: 5 Yr, 11.4% / 10 Yr, 10.3% / 16 Yr, 14.7% renewables, pipeline infrastructure, and power delivery ($ billions) $14 Thousands $12 2011-2019 $10 Orga

  13. Slide 13: Continuing to Leverage Growth Drivers

    Continuing to Leverage Growth Drivers 18-Month Backlog1,2 Clean Energy & Infrastructure Communications1 Power Delivery1 Pipeline Infrastructure ($ billions) $7.0 $6.0 $5.0 $5.1 $5.1 $4.6 $4.7 $5.0 $4.2 $4.1 $4.2 $3.6 $3.6 $3.9 $3.9 $4.0 $3.2 $3.1 $3.0 $2.3 $2.5 $2.1 $1.7 $2.0 $1.5 $1.6 $1.0 $1.2 $1.

  14. Slide 14: Data Centers: A Significant Growth Driver

    Data Centers: A Significant Growth Driver Global Data Center Capacity Growth1 Significant direct Data Center revenue Additional “outside the fence” infrastructure enabling work MasTec Data Center Customer Set A Cross Functional Opportunity2 o Hyperscalers o Data center developers o Communications pr

  15. Slide 15: Data Centers: Core Services

    Data Centers: Core Services Power Construction Communications • Generation, including • Site infrastructure • Data hall construction renewables • Core and shell construction • Dimensioning and design • Behind-the-meter power • Wet and dry utilities • Systems integration • Transmission • Campus const

  16. Slide 16: MasTec Is Targeting Increased Structural Margins

    MasTec Is Targeting Increased Structural Margins Rigorous process implementation and adherence ERP / Field data capture tools Business mix optimization Operational excellence deployment Talent management 16

  17. Slide 17: A Significant Commitment to Training

    A Significant Commitment to Training Dedicated Training Facilities ~34,000 employees trained Over 1,700 unique training courses Wireline Wireless Power Delivery ~430,000 Clean Energy training Pipeline Infrastructure courses completed Partnership with U.S. Military Specialized in skills development 4

  18. Slide 18: Sustainability Overview

    Sustainability Overview MasTec’s deep commitment to sustainability Board Oversight Leadership’s Commitment • Sustainability principles and practices are E • The Board of Directors has oversight of embedded within MasTec’s strategy, risk corporate responsibility for all sustainability management and

  19. Slide 19: Power Delivery

    Power Delivery “MasTec WWéractvucture that Delivers

  20. Slide 20: Power Delivery Overview

    Power Delivery Overview Nationwide Presence, Diverse Service Offering Volume by State Electric & Gas Utilities Services o Electric transmission (765 kV extra-high voltage and below) o Electric distribution (overhead, underground) o Substations and switch yards o Gas distribution o Emergency restorat

  21. Slide 21: Power Delivery Key Facts

    Power Delivery 1 Key Facts 11,700 10 EMPLOYEES ACQUISITIONS COMPLETED 4 51% REGIONAL OPERATING BUSINESS DERIVED FROM CENTERS MSA CONTRACTS 100+ 85% STORM/WILDFIRE CUSTOMER BASE OF RESPONSE INVESTOR-OWNED DEPLOYMENTS UTILITIES (since 2020) ~4,000 ~14,000 EST. EST. VEGETATION CLEARING MILES ANNUALLY T

  22. Slide 22: Load Growth Is Inflecting

    Load Growth Is Inflecting… 1 1 Drivers of Load Growth • Data Center build-out (~10 GW 2023 to ~65 GW 2029e but variable outcomes highly possible) • Manufacturing reshoring: Especially semiconductor chips, batteries • Electrification: Heat pumps, water heaters, EV charging • Hydrogen fuel plants are

  23. Slide 23: Driving Significant Utility Capex Investment

    …Driving Significant Utility Capex Investment Energy Utility Capex1 Key Notes on Utility CapEx EEI forecasts $1.1T total spend ’25-’29 $ billions o Utility capex budgets have been up-sized by 225 ~$66B over 2025-2028, with that multi-year 200 2 forecast up 17% from a year ago 175 150 o Forecasts are

  24. Slide 24: Driving Needed Transmission Expansion

    …and Driving Needed Transmission Expansion N. America Transmission Expansion (Cumulative)1 Drivers of Transmission Spend (>100kV) by Status Miles 18,000 Under Construction Planned Conceptual o Clean energy and data center “macro driver” demand 16,000 14,000 o Increasing fire/storm hardening requirem

  25. Slide 25: Power Delivery Link to Renewables Growth

    Power Delivery Link to Renewables Growth 1 Renewables Require Significant Transmission Capacity US Interconnection Investment Needs Growing Fast “Significant within-region transmission deployment is needed as soon as 2030 in the Plains, Midwest, and Texas regions. By 2040, large deployments will als

  26. Slide 26: Power Delivery Financial Overview

    Power Delivery Financial Overview Revenue1 Power Delivery Growth Drivers ($ billions) $3.6 $3.6 $3.5 o Growth supported by increased expected transmission spend driven by growth of renewables investment and increasing power demand $1.3 o Utility customers steadily outsourcing line services due to ag

  27. Slide 27: Clean Energy & Infrastructure

    Clean Energy & Infrastructure

  28. Slide 28: CE&I Overview

    CE&I Overview Clean Energy & Infrastructure Projects Volume by State Powered by Bing © GeoNames, Microsoft, TomTom A leading construction services provider o Renewables: Wind & solar farm construction and maintenance; battery storage systems & EV infrastructure o Infrastructure: Data center; civil c

  29. Slide 29: Clean Energy & Infrastructure Key Facts

    Clean Energy & Infrastructure Key Facts1 7,650 EMPLOYEES 10 ACQUISITIONS COMPLETED ~2.8 GW of RENEWABLE POWER >50 GW of RENEWABLE INSTALLED IN 2024 POWER INSTALLED ~80% ~200 ACTIVE CIVIL REVENUE FROM REPEAT CUSTOMERS INFRASTRUCTURE PROJECTS 29 1 For the period ending December 31, 2024

  30. Slide 30: CE&I: Renewables Service Portfolio

    CE&I: Renewables Service Portfolio Solar Wind Energy Services Storage With decades of MasTec provides comprehensive turnkey experience in energy MasTec provides turnkey wind farm services —from infrastructure technical solutions that MasTec specializes in initial site analysis, project construction,

  31. Slide 31: CE&I: Renewables End Market Trends

    CE&I: Renewables End Market Trends Global Electricity Generation by Technology1 Demand Drivers For Renewables Growth o Large customers need generation assets to meet expected demand – including data center requirements o Utility-scale generation available to meet real-time requirements with rapid de

  32. Slide 32: CE&I: Solar and Wind Trends

    CE&I: Solar and Wind Trends Solar Installations Spiking1 Wind Capacity Growing But Less Than Solar1 32 1 Nathanielbullard.com: “Decarbonization: 2021 Things, The Complex, Reagents”, January 2025

  33. Slide 33: CE&I: Infrastructure Service Portfolio

    CE&I: Infrastructure Service Portfolio MasTec is a leader in heavy civil construction offering both union and non- Transportation union capability. General Heavy Civil MasTec has broad sector capability for site preparation work. Mining and Material Production MasTec provides turnkey surface mining

  34. Slide 34: CE&I: Industrial Service Portfolio

    CE&I: Industrial Service Portfolio Power MasTec is a top-ranked EPC, self-perform contractor serving the power markets with installation of aeroderivative and reciprocating engines as well as Generation hydrogen-capable combustion turbines. MasTec is a leading EPC and general contractor across the m

  35. Slide 35: CE&I: Infrastructure End Market Trends

    CE&I: Infrastructure End Market Trends Inflation Reduction Act Investments by Sector1 Growth Drivers ~$400B in Funding for Clean Energy ($ in billions) $21 $5 $23 Energy o Data center infrastructure demand Manufacturing o Power load growth and gap to power $46 Environment sources $251 Transportation

  36. Slide 36: CE&I Segment Financial Overview

    CE&I Segment Financial Overview Revenue CE&I Growth Drivers ($ billions) $4.1 $4.0 • Increased demand for renewable power generation $2.6 • Positive drivers for smaller distributed $1.9 generation • MasTec has significant renewable power crew capacity in both union and non- union regions 2021 2022 2

  37. Slide 37: Communications

    Communications “MasTec WWéractvucture that Delivers

  38. Slide 38: Communications Overview

    Communications Overview Nationwide Communication Services Coverage Volume by State Powered by Bing © GeoNames, Microsoft, TomTom A Leading Contractor in Communications Infrastructure o Fiber optic cable / broadband / telecom construction services • FTTH, copper/coax/OSP cable • Fiber deployments for

  39. Slide 39: Communications Key Facts

    Communications 1 Key Facts 7,196 EMPLOYEES 28 ACQUISITIONS COMPLETED 10K+ CARRIER ADDS 1K+ NEW SITE BUILDS 80K+MAINTENANCE 11K+ ENGINEERED MILES NODES SERVICED 18K+ 850K+ CONSTRUCTED MILES HOMES PASSED 39 1 For the period ending December 31, 2024, excluding acquisitions

  40. Slide 40: Communications End Market Trends

    Communications End Market Trends US Broadband Funding by Type1 Key Comments & Demand Drivers o Data centers will require significant fiber and connectivity as a key growth driver o 5G infrastructure rollout, small cell deployments and backhaul deployments are the core of growth o Wireless carriers a

  41. Slide 41: Communications End Market Trends

    Communications End Market Trends Fiber to the Home (FTTH) Passings1 % of U.S. Households o Multi-year FTTH build commitments by major telco/cable providers o Unprecedented federal / state funding for rural broadband programs o Developing 5G smart home trends, indoor distributed antenna systems (DAS)

  42. Slide 42: 5G Networks: Significantly More Complex

    5G Networks: Significantly More Complex 5G Networks Require Extensive Underground & Above-ground Fiber Installation 42

  43. Slide 43: Communications Segment Financial Overview

    Communications Segment Financial Overview Revenue1 MasTec Communications Growth Drivers ($ billions) • Broad geographic base served as a leading $2.5 wireless and wireline/fiber contractor $2.4 $2.4 $2.3 • Advantage through combined project management services and significant self- perform construct

  44. Slide 44: Pipeline Infrastructure

    Pipeline Infrastructure -MasTec ikvacructure that NeLirers

  45. Slide 45: Pipeline Infrastructure

    Pipeline Infrastructure Geography Served Diverse Portfolio of Services o Midstream pipeline (small and large) o Inter- & Intra-state pipeline (large) o Data center turbine power gen pipeline o Gathering and gas distribution systems o Gas compressor and oil pumping stations o Environmental compliance

  46. Slide 46: Pipeline – Natural Gas Growth Drivers

    Pipeline – Natural Gas Growth Drivers Natural Gas Power Generation Demand Growth1 o Increasing load growth from data centers, AI, crypto, and EVs expected to drive 14% per year gas generation demand through 2030 o Growing demand for natural gas in power generation, residential and commercial sectors

  47. Slide 47: Pipeline Infrastructure Key Facts

    Pipeline Infrastructure Key Facts1 4,465 18 ACQUISITIONS EMPLOYEES COMPLETED 12K + MILES CONSTRUCTED #1 PIPELINE CONTRACTOR IN 2 NORTH AMERICA ~$0.5B ~1,400FLEET SIZE KEY PIPELINE EQUIPMENT FLEET COUNT 1 For the period ending December 31, 2024 47 2 Engineering News, 2024

  48. Slide 48: Pipeline – LNG Demand Driver

    Pipeline – LNG Demand Driver US LNG Export Ramp is Driving Gas Pipeline Demand ~11 Bcf/d to ~19 Bcf/d in four years, with more growth expected Pipeline Infrastructure demand driven by LNG opportunity 48

  49. Slide 49: Pipeline – Repair & Replacement Demand

    Pipeline – Repair & Replacement Demand Aging Pipeline Infrastructure in Need of Repairs1 32% of Gas Distribution and 54% of Gas Transmission lines installed pre-1970 Pipeline Infrastructure services replacement needs for aging gas lines 49 1 Sustainanalytics.com / U.S. Energy Information Administrat

  50. Slide 50: Pipeline – The Water Opportunity

    Pipeline – The Water Opportunity US Water & Sewer Funding Needs MasTec’s Diverse Water Services Portfolio o Treatment plants o Pump & lift stations o Water transmission mains o Waste water force mains o Storm sewer trunk lines o Utility rehabilitation lines o Maintenance / emergency restoration o Th

  51. Slide 51: Pipeline Infrastructure Financial Overview

    Pipeline Infrastructure Financial Overview Revenue MasTec Pipeline Infrastructure Growth Drivers $2.5 ($ billions) • Increasing takeaway capacity to alleviate $2.1 $2.1 midstream bottlenecks • Pipeline requirements to support LNG $1.2 export expansion • Resurgence of gas-fired generation to support

  52. Slide 52: Financial Overview

    Financial Overview “MasTec WWéractvucture that Delivers

  53. Slide 53: Revenue and Profit Performance

    Revenue and Profit Performance Revenue Comments ($ millions) $14,075 o Expected 14% growth in 2025 driven by all segments $12,303 $11,996 ~$2,200 except Pipeline Infrastructure given large project $9,778 $2,073 $2,134 completion in 2024 $7,952 $1,220 o Strong backlog coverage for 2025 forecast; tari

  54. Slide 54: MasTec's Segment Evolution

    MasTec’s Segment Evolution 20201 20241 Revenues by Segment Revenues by Segment Clean Energy & Clean Energy & Infrastructure Infrastructure Communications 24% 33% Communications 21% 36% $6.3B $12.3B Pipeline Infrastructure Pipeline 28% Infrastructure Power Delivery 17% Power Delivery 12% 29% Adjusted

  55. Slide 55: Cash Flows

    Cash Flows Capex, Net Disposals Comments ($ in millions) $182 $175 o Limited capex since 2022 reflects increased focus on utilization and Return on Invested $105 $109 Capital. $83 o 2025 capex increase reflects capacity additions to support expected revenue growth 1 2 2021 2022 2023 2024 2025 Free C

  56. Slide 56: Balance Sheet and Liquidity

    Balance Sheet and Liquidity Debt Maturity Profile1 Debt and Capitalization ($ in millions) Undrawn Revolving Credit Facility Capacity 2 ($ in millions) September 30, 2025 Drawn Revolving Credit Facility Revolving Credit Facility due June 2030 $142 5.2% Senior Notes Term Loan due June 2028 $600 5.4%

  57. Slide 57: Capital Allocation

    Capital Allocation Capital Allocation Summary Capital Allocation Priorities (2020-2024) ($ millions) $2,942 o Target equilibrium net leverage1 < 2.0x medium- 7% $202 Share Repurchases term 22% $655 CapEx o Maintain strong balance sheet to support structural organic growth1 opportunities o Continue t

  58. Slide 58: M&A: A Core Competency

    M&A: A Core Competency M&A Summary (2007-2024) 1 66 acquisitions since 2006 ~$5.2b Power Strategy Delivery o Acquire strong management teams with tangible asset value o Earnouts typical; goal of retention of key management Pipeline Infrastructure o Disciplined valuations paid Financial Objectives CE

  59. Slide 59: FY 2025 Guidance

    1 FY 2025 Guidance ($ in billions) Estimated Estimated Adjusted Revenue EBITDA Margin2 Communications3 $3.2 Approaching double digits Clean Energy & Infrastructure $4.65 High single digits Power Delivery3 $4.075 High single digits Pipeline Infrastructure $2.2 Mid-teens Total4 $14.075 8.1% 1 Reflects

  60. Slide 60: Appendix A: Signature Projects

    Appendix A: Signature Projects

  61. Slide 61: Power Delivery: Ten West Link

    Power Delivery: Ten West Link Project Overview Client: DCR Transmission Location: Arizona to California Scope: 125-mile 500kV transmission line Duration: September 2022 − June 2024 Peak Manpower: 400 Manhours: 869,837 Equipment: 550 at peak Key Highlights ❖ The Ten West Link is a 125-mile, 500 kV tr

  62. Slide 62: Power Delivery: Greenlink

    Power Delivery: Greenlink Project Overview Client: NV Energy Location: Nevada Scope: ~700-mile 525kV transmission line and substations Duration: 2024-2028 Key Highlights ❖ One of the largest transmission projects in the U.S., Greenlink represents a significant win for MasTec’s strategy of pursuing l

  63. Slide 63: Clean Energy & Infrastructure: Cedar Creek Wind

    Clean Energy & Infrastructure: Cedar Creek Wind Project Overview Client: Clearway Energy Group Location: Idaho EPC Civil, Foundations, Collection, Substation, O&M, MET Towers, Scope: Erection (47 GE 3.4 MW) Duration: 23 months Peak Manpower: 400 Manhours: 313,674 Equipment: 250+ at peak Key Highligh

  64. Slide 64: Clean Energy & Infrastructure: Parliament Solar

    Clean Energy & Infrastructure: Parliament Solar Project Overview Client: EnCap Investments and Mercuria Energy Location: Texas Clearing & Grubbing, Engineering, Procurement, Construction of a Scope: PV Generation Facility and Substation Duration: 27 months Peak Manpower: 820 (22%+ local hire) Manhou

  65. Slide 65: Communications: AT&T Nokia Swap Project

    Communications: AT&T Nokia Swap Project Project Overview Client: AT&T Location: Nationwide Program A&E and civil services which includes program management, Scope: project management, engineering, installation, decommissioning, and integration services Duration: 3.5 Years Peak Manpower: Over 376 at

  66. Slide 66: Pipeline Infra: Mountain Valley Pipeline (MVP)

    Pipeline Infra: Mountain Valley Pipeline (MVP) Project Overview Client: Equitran Midstream Location: West Virginia and Virginia Scope: 234 Miles of 42” pipe in 7 segments Duration: 73 months Peak Manpower: 4,476 Manhours: 23,281,791 Equipment: Over 11,000 at peak Key Highlights ❖ MVP is a natural ga

  67. Slide 67: Appendix B

    Appendix B | -MasTec ikvacructure that NeLirers

  68. Slide 68: Reg. G Adjusted EBITDA – Continuing Operations

    Reg. G Adjusted EBITDA – Continuing Operations1,2,3 EBITDA and Adjusted EBITDA 2020 % margin 2021 % margin 2022 % margin Reconciliation Revenue $6,321 $7,952 $9,778 Net Income $323 5.1% $331 4.2% $34 0.3% Interest expense, net 60 0.9% 53 0.7% 112 1.1% Provision for income taxes 103 1.6% 99 1.2% 9 0.

  69. Slide 69: Reg. G Adjusted EBITDA – Continuing Operations

    Reg. G Adjusted EBITDA – Continuing Operations1,2,3 EBITDA and Adjusted EBITDA 2023 % margin 2024 % margin 2025E4 % margin Reconciliation Revenue $11,996 $12,303 $14,075 Net Income (loss) ($47) (0.4%) $199 1.6% $399 2.8% Interest expense, net 234 2.0% 193 1.6% 170 1.2% Provision for (benefit from) i

  70. Slide 70: Reg. G Adjusted EBITDA and Margin by Segment

    Reg. G Adjusted EBITDA and Adjusted EBITDA Margin by Segment1,2 EBITDA and Adjusted EBITDA Reconciliation 2020 % margin 2021 % margin 2022 % margin EBITDA $782.5 12.4% $906.3 11.4% $662.5 6.8% Acquisition and integration costs (a) - - 3.6 0.0% 86.0 0.9% Non-cash stock-based compensation expense (b)

  71. Slide 71: Reg. G Adjusted EBITDA and Margin by Segment

    Reg. G Adjusted EBITDA and Adjusted EBITDA Margin by Segment1,2 EBITDA and Adjusted EBITDA Reconciliation 2023 % margin 2024 % margin EBITDA $754.9 6.3% $950.8 7.7% Acquisition and integration costs (a) 71.9 0.6% - - Non-cash stock-based compensation expense (b) 33.3 0.3% 32.7 0.3% Losses, net, on f

  72. Slide 72: FCF Reconciliation

    FCF Reconciliation1 Free Cash Flow Reconciliation 2021 2022 2023 2024 2025E2 Net cash provided by operating activities $793 $352 $687 $1,122 $700 - $750 Capital expenditures (170) (263) (193) (149) (235) Proceeds from sales of property and equipment 65 82 84 66 60 Free Cash Flow $688 $170 $578 $1,03

  73. Slide 73: Calculation of Net Debt

    Calculation of Net Debt1 September 30, Calculation of Net Debt 2025 Current portion of long-term debt, including finance leases $157 Long-term debt, including finance leases 2,200 Total debt $2,357 Less: cash and cash equivalents (231) Net debt $2,126 73 1 Differences due to rounding, $ in millions.

  74. Slide 74: Selected Definitions

    Selected Definitions Backlog - represents the amount of revenue which could be realized over the next 18 months from known sources including: Revenue realized on existing but uncompleted construction contracts; revenue from new contracts under which work has not begun; revenue from change orders and

  75. Slide 75: Contact Us

    Contact Us MASTEC HEADQUARTERS 800 Douglas Road 12th Floor Coral Gables, FL 33134 USA www.mastec.com 800.444.7797 Toll Free services@mastec.com INVESTOR CONTACT Chris Mecray Vice-President, Investor Relations chris.mecray@mastec.com 917.517.3388

MasTec — Investor Presentation (December 2025) on 6ix