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AI,Tech,Sci/AI Infrastructure Dissection

[AI Infrastructure Dissection] Quanta Services, Inc. (NYSE: PWR): Power Grid Infrastructure, AI Load Center, and the Craft-Labor Platform

by pragma 2026. 7. 9.

AI Infrastructure Briefing Series

QUANTA SERVICES, INC. (NYSE: PWR)

Sources: SEC EDGAR (10-K FY2025 · 10-Q Q1 2026 · 8-K filings) · May 2026

 

The Five Things That Matter

Quanta Services is the company that builds the infrastructure making the AI boom physically possible. It wires data centers from the inside, connects them to the power grid, and builds the power plants feeding them. Most investors have never heard of it. Here are the five things that matter.

 

1. Quanta builds everything between the power plant and the server rack. High-voltage transmission lines, substations, the electrical systems inside data centers, and now the gas power plants supplying them — Quanta handles all of it with its own workers, not subcontractors. Revenue hit a record $28.48 billion in FY2025, up 20.3% year-on-year.

 

2. The backlog is the clearest signal of what comes next. The backlog — the dollar value of work already contracted but not yet billed — hit a record $48.47 billion in Q1 2026, up 37.5% year-on-year. That is more than a year of revenue already locked in.

 

3. The workforce is the moat. Quanta employs approximately 69,500 people — the largest craft-skilled labor force in the United States. Licensed electricians, lineworkers, and tradespeople take years to train. A rival cannot replicate that headcount quickly, and the industry-wide shortage of such workers makes the gap harder to close, not easier.

 

4. Eight acquisitions in 2025 extended the menu from power lines to gas turbines and data center plumbing. The biggest deals — Dynamic Systems ($1.26 billion, July 2025) and the Q4 2025 trio of Tri-City, Wilson, and Billings ($1.73 billion) — pushed Quanta deeper into data center mechanical systems and high-voltage transmission in the western United States.

 

5. Fixed-price contracts are the main financial risk. 60.6% of Q1 2026 revenue came from contracts where the price is set upfront. When a project costs more than estimated, Quanta pays the difference. A large Canadian transmission project is currently in dispute over $918.3 million in unresolved cost claims.

 

Key Metrics at a Glance

FY2025 Revenue

$28.48B

+20.3% Y/Y · record

FY2025 Adj. EBITDA

$2.88B

10.1% margin

FY2025 Adj. Dil. EPS

$10.75

+19.8% Y/Y · GAAP $6.80

FY2025 Op. Cash Flow

$2.23B

Free cash flow $1.67B

FY2025 Net Income

$1.03B

3.6% net margin

Year-End 2025 Backlog

$43.98B

+27.3% Y/Y · RPO $23.76B

Q1 2026 Revenue

$7.87B

+26.3% Y/Y · record Q1

Q1 2026 Adj. Dil. EPS

$2.68

+50.6% Y/Y · record Q1

FY2026 Guidance (raised)

$34.7–35.2B

Adj. EPS $13.55–$14.25

Q1 2026 Total Backlog

$48.47B

+37.5% Y/Y · record

Perf. Bonds (Q1 2026)

~$20.3B

Outstanding est.

Shares Out. (Apr 27, 2026)

150.1M

NYSE: PWR

Sources: Quanta Services, Inc., Form 10-K FY2025 (filed Feb 19, 2026); Form 8-K Q4/FY2025 Exhibit 99.1 (Feb 19, 2026); Form 8-K Q1 2026 Exhibit 99.1 (Apr 30, 2026); Form 10-Q Q1 2026 (Apr 30, 2026). U.S. Securities and Exchange Commission EDGAR.

I. Financial Architecture: Eight Consecutive Record Years and Accelerating

FY2025 Full Year

Quanta closed fiscal year 2025 with consolidated revenues of $28.48 billion, up 20.3% from $23.67 billion in FY2024. It was the company's eighth record revenue year in nine, and the eighth consecutive record for adjusted EBITDA (earnings before interest, taxes, depreciation, and amortization, further adjusted to remove stock-based pay and one-time acquisition costs). (Quanta Services 2026b; 2026c, Item 7)

 

Of the $4.81 billion revenue increase, approximately $2.8 billion came directly from acquired businesses — Quanta completed eight acquisitions in FY2025 — with the rest from growth at existing operations. (Quanta Services 2026c, Item 7)

 

Segment Performance — FY2025

Segment Revenue YoY Growth Share of Total Op. Margin
Electric Infrastructure Solutions ~$23.0B +21.0% ~80.8% 10.3%
Underground Utility & Infrastructure ~$5.48B +17.5% ~19.2% 7.3%

Source: Quanta Services, Inc. Form 10-K FY2025, Item 7. SEC EDGAR. Segment operating margins derived.

 

Quarterly Revenue and Adjusted Diluted EPS — Q1–2025 through Q1–2026

Source: Quanta Services, Inc. Form 8-K series 2025–2026. SEC EDGAR.

The gross profit margin — revenue minus direct field costs — came in at 15.0%, a slight improvement over the prior year. Operating margin held at 5.7% despite the added overhead from eight acquisitions, because field-level profitability remained well-managed through the growth. (Quanta Services 2026c, Item 7)

 

From Net Income to Adjusted EBITDA: How to Read the Numbers

GAAP net income — the number that follows every accounting rule — was $1.03 billion. But that figure includes large non-cash charges from acquisitions and stock pay that do not reflect the actual cash the business generates. Start from net income and add back the items that cloud the picture: interest expense ($261 million), taxes ($348 million), depreciation of equipment ($412 million), amortization of acquired intangible assets ($499 million — a paper charge, not cash), stock-based compensation ($182 million), and acquisition costs ($94 million). The result is adjusted EBITDA of approximately $2.876 billion, or 10.1% of revenue. (Quanta Services 2026c, Item 7)

 

Adjusted diluted EPS — earnings per share calculated on the same adjusted basis, and assuming all stock options and convertible instruments have converted to shares — came in at $10.75, up 19.8% from $8.97 in FY2024. This is the metric that analyst consensus and management guidance both track. GAAP diluted EPS was $6.80, the gap reflecting the non-cash items above. (Quanta Services 2026b)

 

Cash and Balance Sheet — December 31, 2025

Balance Sheet Snapshot — December 31, 2025

ASSETS — WHAT QUANTA OWNS
Cash and cash equivalents$440M
Accounts receivable and contract assets$8,369M
Other current assets$1,095M
Property, equipment and other long-term assets$4,800M
Other intangible assets, net$2,906M
Goodwill (premium paid on acquisitions)$7,317M
Total Assets$24,927M
LIABILITIES & EQUITY — HOW ASSETS ARE FINANCED
Current maturities of long-term debt$764M
Accounts payable, accrued expenses and contract liabilities$7,838M
Other current liabilities$114M
Total current liabilities$8,716M
Long-term debt, net of current maturities$5,231M
Other non-current liabilities$1,952M
Total liabilities$15,899M
Total equity (stockholders' + non-controlling interests)$9,028M

Source: Quanta Services, Inc. Form 10-K FY2025, Item 8 — Consolidated Balance Sheets as of December 31, 2025. SEC EDGAR (pwr-20251231). Cross-check: $15,899M total liabilities + $9,028M total equity = $24,927M = Total Assets ✓. (Quanta Services 2026c, Item 8)

Liquidity Position — December 31, 2025

Senior credit facility total capacity$2,800M
Less: commercial paper outstanding($316M)
Less: letters of credit outstanding($66M)
Available revolving credit$2,418M
Plus: cash and cash equivalents$440M
Total available liquidity$2,858M

Source: Quanta Services, Inc. Form 10-K FY2025, Item 7 — Liquidity and Capital Resources. SEC EDGAR. (Quanta Services 2026c, Item 7)

S&P Global Ratings raised Quanta's issuer credit rating from BBB− to BBB in Q1 2025, also upgrading the short-term rating from A−3 to A−2. The debt-to-EBITDA ratio stood at a favorable level at year-end 2025. (Quanta Services 2026b)

 

Q1 2026: The Most Recent Quarter

First quarter 2026 revenues reached $7.87 billion, up 26.3% from $6.23 billion in Q1 2025 — a record first quarter. The growth was broad-based: the Electric segment grew 30.8% and the Underground segment grew 9.1%. (Quanta Services 2026a)

 

Segment Performance — Q1 2026 vs Q1 2025

Segment Q1 2026 Revenue YoY Growth Share of Total Op. Margin Q1 2025 Margin
Electric Infrastructure ~$6.46B +30.8% 82.1% 8.7% 8.3%
Underground & Infrastructure ~$1.41B +9.1% 17.9% 7.5% 6.0%

Source: Quanta Services, Inc. Form 10-Q Q1 2026, Item 2. SEC EDGAR.

Adjusted diluted EPS jumped 50.6% to $2.68, from $1.78 in Q1 2025. Part of that gain came from a lower effective tax rate — 9.7% in Q1 2026 versus 21.1% a year earlier — because stock-based compensation vesting in the quarter triggered $32.2 million in additional tax deductions. Even stripping that out, the underlying business showed clear improvement. (Quanta Services 2026d, Item 2; Note 8)

 

Operating cash flow came in at $391.7 million, up 61% year-on-year. Days Sales Outstanding (DSO) — how many days on average it takes to collect payment after completing work — fell to 61 days, well below the five-year average of 72 days. Advance payments from customers reached $3.84 billion as of March 31, 2026, reflecting customers pre-funding large projects. (Quanta Services 2026d, Item 2)

 

Terms Explained

Adjusted Diluted EPS. Earnings per share after stripping out non-cash items like acquisition amortization and stock-based compensation. "Diluted" means the calculation assumes all options and convertible instruments have already converted to shares — the most conservative possible share count. This is the figure management guides to and analysts track.

 

Adjusted EBITDA. Earnings before interest, taxes, depreciation, and amortization, further adjusted to strip out stock-based pay, restructuring, and acquisition costs. It approximates how much cash the operating business generates before financing and tax decisions enter the picture.

 

Free Cash Flow. Operating cash minus capital expenditure. The money genuinely free to use for dividends, debt repayment, buybacks, or acquisitions.

 

Goodwill. When a company acquires another, it usually pays more than the target's book value — for its customer relationships, workforce, and market position. That premium appears on the balance sheet as goodwill. Quanta's $7.32 billion goodwill balance reflects fifteen months of aggressive acquisition spending.

 

Source Credibility and Tier Classification

Source Tier Grade Evidentiary Note
Form 8-K Q1 2026, Exhibit 99.1 (filed Apr 30, 2026) Tier 1 — SEC EDGAR A+ Primary source for Q1 2026 P&L, segment data, backlog, raised FY2026 guidance, CEO statement, TAM $2.4T, EPS doubling by 2030. Fetch-verified from EDGAR.
Form 8-K Q4 & FY2025, Exhibit 99.1 (filed Feb 19, 2026) Tier 1 — SEC EDGAR A+ FY2025 and Q4 P&L, backlog, initial FY2026 guidance, Q4 2025 acquisition terms (Tri-City, Wilson, Billings). Fetch-verified.
Form 10-K FY2025, pwr-20251231 (filed Feb 19, 2026) + Annual Report 2025 (Form ARS) Tier 1 — SEC EDGAR A+ Business description, segments, competition, risk factors (Items 1, 1A), consolidated P&L bridge and segment detail (Item 7). ARS adds: 69,500 employees, 14% revenue CAGR, 25% adj. EPS CAGR, Bell Lumber, transformer investment plan. Both documents fetch-verified.
Form 10-Q Q1 2026, pwr-20260331 (filed Apr 30, 2026) — cited as Quanta Services 2026d Tier 1 — SEC EDGAR A+ User-supplied PDF fully verified via extraction, May 2026. Primary source for: revenue by contract type (fixed-price 60.6%, unit-price 21.9%, cost-plus 17.5%) and geography (US 93.4%); RPO $26.24B (69% within 12 months); unapproved change orders $918.3M (Note 2); segment operating detail Q1 2026 and Q1 2025 (Note 3); acquisition goodwill $1.78B and identifiable intangibles $1.30B with measurement period adjustment $88.9M (Note 4); LUMA equity earnings $14.5M (Note 5); full debt schedule and liquidity $2.82B (Note 7); effective tax rate 9.7%, equity award benefit $32.2M (Note 8); performance bonds ~$20.3B, insurance reserves $599.5M, self-insure threshold $70M/occurrence, Silverado Fire disclosure (Note 12); DSO 61 days vs 5-year avg 72 days, backlog reconciliation, MSA percentages 35%/45%, adjusted EBITDA reconciliation (Item 2). Balance sheet March 31, 2026: total assets $25.747B, goodwill $7.405B, intangibles net $2.724B, contract liabilities $3.840B.
MasTec, Inc. Form 10-K FY2025, mtz-20251231 (filed Feb 26, 2026) Tier 1 — SEC EDGAR A+ FY2025 revenue ($14.3B), market cap (~$10.3B), five segments, IRA and tariff risk corroboration. Fetch-verified.
MYR Group Inc. Form 10-K FY2025, myrg-20251231 (filed Feb 25, 2026) Tier 1 — SEC EDGAR A+ FY2025 revenues ($3.66B), T&D/C&I segment composition, fixed-price contract share, market cap (~$2.38B). Fetch-verified.
EMCOR Group, Inc. Form 10-K FY2024, eme-20241231 (filed 2025) Tier 1 — SEC EDGAR A+ FY2024 revenues (~$14.6B), five-segment structure. Fetch-verified.
2026 Investor Day Presentation — March 31, 2026 (Quanta Services 2026e) DEVIATION — Quanta IR
(not filed as SEC Form 8-K exhibit)
A+ Positively qualified: official company presentation, publicly webcasted, URL session-retrieved and fetch-verified, May 2026. Primary source for five-year targets: adj. EPS $21.60–$26.75, revenue CAGR 7–10%, adj. EBITDA margin 10–11%, ROIC 12–15%, cumulative FCF $10B–$12B, segment margin targets, <15% of revenues in fixed-price contracts >$300M. TAM $2.4T and EPS-doubling statement independently Tier 1 confirmed from Q1 2026 8-K (Quanta Services 2026a).
U.S. Securities and Exchange Commission EDGAR Tier 1 — U.S. SEC A+ Primary statutory disclosure repository. CIK 1050915. All Quanta filings cited accessible via https://www.sec.gov. Session-accessed, May 2026.

Bibliography

All citations follow Chicago Author-Date style (17th edition). Sources are arranged alphabetically by issuing institution.

EMCOR Group, Inc. 2025. Annual Report on Form 10-K for the Fiscal Year Ended December 31, 2024. Filed with the U.S. Securities and Exchange Commission, February 26, 2025. https://www.sec.gov/Archives/edgar/data/0000105634/000010563425000015/eme-20241231.htm.

 

MasTec, Inc. 2026. Annual Report on Form 10-K for the Fiscal Year Ended December 31, 2025. Filed with the U.S. Securities and Exchange Commission, February 26, 2026. https://www.sec.gov/Archives/edgar/data/0000015615/000001561526000020/mtz-20251231.htm.

 

MYR Group Inc. 2026. Annual Report on Form 10-K for the Fiscal Year Ended December 31, 2025. Filed with the U.S. Securities and Exchange Commission, February 25, 2026. https://www.sec.gov/Archives/edgar/data/0000700923/000070092326000007/myrg-20251231.htm.

 

Quanta Services, Inc. 2025b. "Quanta Services Reports Second Quarter 2025 Results." Form 8-K, Exhibit 99.1. Filed with U.S. Securities and Exchange Commission, July 31, 2025. https://www.sec.gov/Archives/edgar/data/0001050915/000119312525169944/d28227dex991.htm.

 

Quanta Services, Inc. 2025c. "Building upon Decades of Power Generation Experience, Quanta Expands Its Total Solutions Platform and Announces Its Selection by NiSource." Form 8-K, Exhibit 99.2. Filed with U.S. Securities and Exchange Commission, October 30, 2025. https://www.sec.gov/Archives/edgar/data/0001050915/000119312525257378/d851878dex992.htm.

 

Quanta Services, Inc. 2026a. "Quanta Services Reports First Quarter 2026 Results." Form 8-K, Exhibit 99.1. Filed with U.S. Securities and Exchange Commission, April 30, 2026. SEC EDGAR CIK 1050915, Accession 000119312526193918. https://www.sec.gov/Archives/edgar/data/0001050915/000119312526193918/d107542dex991.htm.

 

Quanta Services, Inc. 2026b. "Quanta Services Reports Fourth Quarter and Full-Year 2025 Results." Form 8-K, Exhibit 99.1. Filed with U.S. Securities and Exchange Commission, February 19, 2026. SEC EDGAR CIK 1050915, Accession 000119312526058069. https://www.sec.gov/Archives/edgar/data/0001050915/000119312526058069/d101511dex991.htm.

 

Quanta Services, Inc. 2026c. Annual Report on Form 10-K for the Year Ended December 31, 2025. Filed with U.S. Securities and Exchange Commission, February 19, 2026. SEC EDGAR CIK 1050915, Accession 000105091526000006. https://www.sec.gov/Archives/edgar/data/1050915/000105091526000006/pwr-20251231.htm. Also cited for Annual Report 2025 (Form ARS), which incorporates the 10-K in full and adds a shareholder narrative preface. ARS: https://www.sec.gov/Archives/edgar/data/1050915/000119312526150305/d878482dars.pdf.

 

Quanta Services, Inc. 2026d. Quarterly Report on Form 10-Q for the Quarter Ended March 31, 2026. Filed with U.S. Securities and Exchange Commission, April 30, 2026. SEC EDGAR CIK 1050915.

 

U.S. Securities and Exchange Commission. n.d. EDGAR: Electronic Data Gathering, Analysis, and Retrieval System. Washington, D.C.: U.S. Securities and Exchange Commission. https://www.sec.gov. Session-accessed, May 2026.

Sources: SEC EDGAR (PWR 10-K FY2025 · 8-K series 2025–2026 · 10-Q Q1 2026) · MasTec 10-K FY2025 · MYR Group 10-K FY2025 · EMCOR 10-K FY2024 · Quanta Investor Relations. All rights reserved. This report is for informational purposes only and does not constitute investment advice.