PWR vs STRL

Key Takeaways

• Quanta Services (PWR) is a large-cap infrastructure giant with $28.48 billion in full-year 2025 revenue and a record $43.98 billion backlog, benefiting from multi-decade electrification and grid modernization trends.
• Sterling Infrastructure (STRL) delivered 53% adjusted net income growth in 2025, driven by explosive demand in mission-critical E-Infrastructure, including data centers and semiconductor facilities.
• Both companies operate in overlapping infrastructure sectors, but PWR offers scale and diversification while STRL offers higher percentage growth rates and expanding margins.
• STRL achieved record adjusted EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) margins exceeding 20% for the first time in its history, signaling meaningful operating leverage.
• PWR expects double-digit EPS (Earnings Per Share) growth and over 20% EPS expansion in 2026, while STRL guides for 25% revenue growth and 26% adjusted diluted EPS growth.
• Risk profiles differ: PWR faces macroeconomic and regulatory complexity at scale, while STRL contends with housing-market weakness in its Building Solutions segment.

Introduction

Investors tracking the infrastructure and engineering sector have closely watched two standouts in recent quarters: Quanta Services, Inc. (PWR) and Sterling Infrastructure, Inc. (STRL). Both companies operate at the intersection of electrification, data-center buildout, and critical infrastructure modernization — themes that have reshaped capital flows in the construction and engineering space. While Quanta Services is a $40-billion-plus market-cap industry leader with a vast portfolio spanning electric power, renewables, and underground utility work, Sterling Infrastructure has emerged as a high-growth mid-cap force, particularly in mission-critical E-Infrastructure. This comparison examines their recent performance, growth drivers, and relative positioning to help investors understand the trade-offs between scale and momentum in today's market.

PWR Overview and Recent Performance

Quanta Services (PWR) is one of the largest specialty contracting companies in North America, delivering infrastructure solutions across the electric power, renewable energy, communications, and pipeline industries. The company operates through two primary segments: Electric Infrastructure Solutions and Underground Utility and Infrastructure Solutions. In full-year 2025, PWR reported record consolidated revenues of $28.48 billion, a significant jump from the prior year, along with adjusted diluted EPS of $10.75 and net income attributable to common stock of $1.03 billion. Cash flow from operations reached $2.23 billion.

What has driven sentiment in recent weeks is the sheer scale of PWR's backlog. The company ended the year with a record total backlog of $43.98 billion and remaining performance obligations (RPO) of $23.76 billion — figures that reflect accelerating demand in the Electric segment. Major project wins, including a landmark engagement with NiSource to design, procure, and construct approximately 3 gigawatts of power generation and grid infrastructure for a large load customer, have reinforced confidence in the company's multi-year revenue visibility. Strategic acquisitions — such as the $1.35 billion purchase of Dynamic Systems, a premier mechanical and process infrastructure provider — have expanded PWR's addressable market into high-growth technology, semiconductor, and healthcare verticals. A credit rating upgrade from S&P Global Ratings to BBB further underscores the company's improving financial profile.

STRL Overview and Recent Performance

Sterling Infrastructure (STRL) is a Texas-based infrastructure company focused on three segments: E-Infrastructure Solutions, Transportation Solutions, and Building Solutions. The company has undergone a notable transformation in recent years, shifting its portfolio toward higher-margin, mission-critical projects — particularly large-scale data centers, advanced manufacturing facilities, and semiconductor installations. For full-year 2025, STRL posted revenues of $2.49 billion, up 32% on an adjusted basis when excluding the deconsolidated RHB joint venture. Adjusted net income surged 53% to $336.7 million, or $10.88 per diluted share, while adjusted EBITDA rose 47% to $503.8 million.

The fourth quarter of 2025 highlighted the power of STRL's repositioning. E-Infrastructure revenues soared 123% year over year, fueled by strong organic growth and contributions from the CEC Facilities Group acquisition, which brought mission-critical electrical and mechanical capabilities into the fold. Mission-critical work — defined as data center, manufacturing, and semiconductor projects — represented 84% of the E-Infrastructure backlog at year-end. Transportation Solutions also delivered robust results, with 24% revenue growth and 103% adjusted operating income growth driven by strength in Rocky Mountain markets. Offsetting these gains, the Building Solutions segment continued to face headwinds from a sluggish U.S. housing market, with revenues declining 9%. Looking ahead, STRL issued full-year 2026 revenue guidance of $3.05 billion to $3.20 billion and adjusted EPS guidance of $13.45 to $14.05, signaling continued momentum.

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Head-to-Head Comparison

The most striking contrast between PWR and STRL is one of scale. PWR generated over $28 billion in 2025 revenue — more than 11 times STRL's $2.49 billion. Quanta's $43.98 billion backlog dwarfs Sterling's $3.01 billion, reflecting a fundamentally different scope of operations. Yet on percentage growth metrics, STRL holds the advantage: its 53% adjusted net income growth and 47% adjusted EBITDA growth outpaced PWR's already-impressive double-digit gains. Sterling's adjusted EBITDA margin exceeding 20% also marks a level of profitability that PWR, given its lower-margin utility-scale work, does not match.

From a business-model perspective, PWR benefits from deep, entrenched relationships with regulated utilities and large power consumers, giving it a more defensive posture and recession-resistant revenue streams. STRL leans more heavily on the secular boom in data-center and advanced manufacturing construction — a higher-growth but potentially more cyclical end market. In terms of risk, PWR must navigate permitting delays, supply chain complexity, and macroeconomic uncertainty at a vast operational scale, while STRL contends with the ongoing drag from its Building Solutions residential exposure and the integration risk associated with the CEC acquisition. Market sentiment in recent weeks has been broadly positive for both names, but STRL shares have exhibited greater volatility, consistent with a mid-cap growth profile.

Tickeron AI Verdict

Based on observable factors — including trend consistency, backlog growth trajectory, margin expansion, and relative market positioning — Tickeron's AI framework would likely lean toward Sterling Infrastructure (STRL) in the current environment, while acknowledging Quanta Services (PWR) as the more defensive and institutionally anchored choice. The AI would likely favor STRL for its superior earnings momentum, expanding margins, and concentrated exposure to the data-center mega-cycle, which continues to show strong and sustained demand signals. However, this preference is probabilistic rather than absolute. PWR offers a broader, more resilient revenue base and a backlog so large it provides exceptional long-term visibility — qualities that may appeal to a different set of algorithmic strategies focused on stability and lower drawdown risk. The choice between these two stocks ultimately depends on whether an AI model prioritizes growth velocity or scale-driven durability in its selection criteria.

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