Business Context and Reporting Period
Company: MasTec, Inc. (MTZ)
Filing Type: Form 10-K (Annual Report)
Reporting Period: Fiscal year ended December 31, 2025
Business Overview: MasTec is a leading North American infrastructure engineering and construction company. It operates through five reportable segments: Communications, Clean Energy and Infrastructure, Power Delivery, Pipeline Infrastructure, and Other. The company focuses on the transition to low-carbon energy, data center infrastructure, and grid modernization. As of December 31, 2025, the company employed approximately 36,000 people across 810 locations.
Key Financial Metrics
| Metric | 2025 | 2024 |
|---|---|---|
| Revenue | $14,299.2 million | $12,303.5 million |
| Net Income (Attributable to MasTec) | $399.0 million | $162.8 million |
| Diluted EPS | $5.07 | $2.06 |
| EBITDA | $1,115.5 million | $950.8 million |
| Adjusted EBITDA | $1,150.1 million | $1,005.6 million |
| Operating Cash Flow | $545.7 million | $1,121.6 million |
| Capital Expenditures | $260.0 million | $148.9 million |
| Total Debt (Gross) | $2,345.6 million | $2,238.7 million |
| Working Capital | $1,058.0 million | $653.0 million |
| Cash and Cash Equivalents | $396.0 million | $400.0 million |
Material Changes vs. Prior Period
- Revenue Growth: Consolidated revenue increased by 16.2% ($1,995.7 million) driven by growth in Communications (+32.3%), Clean Energy and Infrastructure (+14.8%), and Power Delivery (+15.6%). Pipeline Infrastructure revenue remained flat (+0.2%).
- Profitability: Net income attributable to MasTec increased 145.1% to $399.0 million. The effective tax rate decreased to 18.1% from 20.5% in 2024, aided by the reversal of uncertain tax position liabilities and release of valuation allowances.
- Segment Performance:
- Communications: EBITDA margin improved to 9.3% from 8.7% due to improved project efficiencies.
- Clean Energy: EBITDA margin expanded to 7.4% from 6.3% driven by project mix and close-outs.
- Power Delivery: EBITDA margin declined slightly to 8.1% from 8.3% due to reduced efficiencies and lower emergency restoration services.
- Pipeline Infrastructure: EBITDA margin contracted significantly to 14.9% from 18.3% due to reduced efficiencies and project mix changes.
- Cash Flow: Operating cash flow decreased by $576 million to $545.7 million, primarily due to working capital changes, specifically an increase in Days Sales Outstanding (DSO) from 60 to 65 days.
- Debt Structure: The company entered a new $600 million Term Loan Facility in June 2025 and amended its Senior Credit Facility to $1.9 billion in revolving commitments. It repaid prior term loans and senior notes, resulting in a net increase in gross debt of approximately $107 million.
Guidance, Outlook, and Risks
Outlook and Strategy: Management expects to benefit from multi-year investment cycles in U.S. communications, energy, and infrastructure driven by AI data center growth, electrification, and federal funding (IIJA/IRA). The company anticipates realizing approximately 74% of its $18.96 billion year-end 2025 backlog in 2026. Capital expenditures for 2026 are estimated at $270 million.
Material Risks and Contingencies:
- Regulatory and Policy Changes: The "One Big Beautiful Bill Act" (OBBBA), signed July 4, 2025, accelerated the phaseout of certain clean energy tax credits (IRA), potentially reducing long-term demand for solar and wind projects. Conversely, it increased support for oil and gas production.
- Trade and Tariffs: Significant uncertainty remains regarding U.S. trade tariffs and retaliatory actions, which have increased costs for imported materials (steel, copper, solar panels) and disrupted supply chains.
- Project Execution: Risks include cost overruns on fixed-price contracts, delays in permitting, and the ability to accurately estimate costs to complete.
- Customer Concentration: AT&T represented approximately 10% of total consolidated revenue in 2025. Governmental entities accounted for approximately 13% of revenue.
- Self-Insurance: The company is self-insured up to deductibles. Estimated gross liability for unpaid claims totaled $306.8 million as of December 31, 2025.
Investor Verification Checklist
- Backlog Realization: Verify the realization rate of the $18.96 billion backlog, noting that 47% is attributable to master service agreements which are cancelable on short notice.
- DSO Trends: Monitor the increase in Days Sales Outstanding (65 days in 2025 vs. 60 days in 2024) and its impact on future operating cash flows.
- Policy Impact: Assess the long-term impact of the OBBBA on the Clean Energy and Infrastructure segment, specifically regarding the phaseout of tax credits for projects placed in service after December 31, 2027.
- Debt Covenants: Confirm continued compliance with the Consolidated Leverage Ratio covenant (maximum 3.50:1.00) under the new Credit Facility and Term Loan.
- Segment Margins: Investigate the drivers behind the significant margin compression in the Pipeline Infrastructure segment (340 basis point decline).
- Acquisition Integration: Review the integration progress of five acquisitions completed in 2025 and the subsequent Q1 2026 acquisition of a water/wastewater company.