ECG Q2 2025: Backlog Jumps 24% as Data Center, T&D Momentum Extend Growth Visibility

ECG's second quarter showcased outsized backlog growth and record revenues, propelled by surging demand in data center and transmission projects. The company’s execution, early project pull-forward, and disciplined bidding strategy drove margin improvement and a guidance raise, but the mix shift to early-phase projects clouds near-term margin upside. Investors should watch how ECG manages backlog conversion and capital deployment as multi-year projects ramp.

Summary

  • Backlog Expansion Signals Market Strength: Backlog up sharply, led by balanced growth in both segments and robust data center demand.
  • Execution Drives Margin Uplift: Project pull-forward and prefab investments contributed to margin gains and record revenues.
  • Guidance Raised, But Near-Term Margins Face Mix Pressure: Shift to early-stage projects tempers margin upside for the rest of 2025.

Performance Analysis

ECG delivered a standout quarter with revenue climbing 31%, fueled by strength in both Electrical & Mechanical (E&M) and Transmission & Distribution (T&D) segments. E&M, which now accounts for the majority of ECG’s revenue, surged 42% year-over-year, powered by continued data center buildouts and favorable project timing. T&D grew at a slower 3% pace, but still contributed to overall growth as utility and transportation demand held firm. The company’s EBITDA rose 36%, outpacing revenue on the back of project execution and efficiency gains, with total EBITDA margin rising 30 basis points to 9.1%.

Backlog hit $3 billion, up 24% year-over-year, marking a new Q2 record and providing visibility into future revenue streams. Both E&M and T&D saw backlog growth above 20%, underscoring broad-based demand. The company’s book-to-bill ratio year-to-date stands at 1.1, reflecting sustained order inflows even as Q2 saw some project pull-forward. Segment-level margins improved: E&M margin expanded 70 basis points to 8.9%, while T&D margin jumped 200 basis points to 14.3%, aided by mix and execution tailwinds. Capital expenditures nearly doubled year-over-year, reflecting ongoing investment in prefab facilities and fleet to support growth.

  • Data Center Pipeline Remains a Key Driver: E&M segment’s outperformance is closely tied to continued strength in data center construction, with management citing no slowdown in customer plans.
  • Project Timing and Mix Shape Margins: Pull-forward of several large projects boosted margins, but management flagged that such upside is unlikely to recur in the back half.
  • Working Capital and CapEx Scale With Growth: Increased investment in prefab and equipment aligns with multi-year project ramp, supporting execution but raising near-term cash flow needs.

While execution was exemplary, management cautioned that a higher mix of early-phase large projects in backlog will likely moderate margin upside in the second half, as fewer projects reach completion stages where execution gains are realized.

Executive Commentary

"Our total backlog at the end of the second quarter was $3 billion, up 24% from the same period last year, and up 7% from the end of 2024. We were particularly pleased with the balanced backlog growth across both E&M and T&D, as both segments posted solid 20% plus growth relative to last year."

Jeff Bede, President & CEO

"Based on these factors, combined with our project mix and expected project cadence for the second half of the year, we are raising our 2025 guidance. We are now forecasting revenues in the range of $3.3 to $3.4 billion, which is up from the prior range of $3 to $3.1 billion, and EBITDA in the range of $240 million to $255 million, up from $210 to $225 million previously."

Max, Chief Financial Officer

Strategic Positioning

1. Data Center and Digital Infrastructure Tailwinds

ECG’s E&M segment continues to benefit from surging demand for data center construction, a secular trend driven by cloud, AI, and enterprise digitalization. The company’s geographic positioning and deep customer relationships enable it to secure large, complex jobs with multi-year visibility. Management emphasized ongoing involvement in long-term planning with key clients, suggesting sustained pipeline strength.

2. Transmission & Distribution (T&D) Project Mix Evolution

T&D backlog growth was notable, led by underground transmission and utility projects. As utilities invest in grid modernization and resilience, ECG’s expertise in both underground and above-ground work positions it as a preferred partner. The company is increasingly bidding on larger T&D projects, signaling a potential step-change in segment contribution if win rates hold.

3. Prefabrication and Operational Efficiency

Investment in prefab facilities, offsite modular construction, is a differentiator for ECG, enabling safer, faster, and more efficient project delivery. Prefab not only boosts margins but also supports schedule compression and reduces on-site congestion, which is valued by clients and other trades. Management indicated continued expansion of prefab capabilities, particularly in the Midwest, as part of its long-term productivity strategy.

4. Talent Pipeline and Execution Discipline

Record headcount and a focus on skilled labor retention underpin ECG’s ability to execute and convert backlog. The company’s disciplined bidding and project selection process, coupled with ongoing training, supports both safety and profitability. This approach has enabled ECG to pull forward work and deliver upside, though management notes that timing is inherently variable.

5. M&A Pipeline and Geographic Expansion

ECG is actively cultivating an M&A pipeline, with new leadership in corporate development broadening its opportunity set. The company is targeting acquisitions that deliver geographic reach, operational integrity, and cultural fit, aiming to supplement organic growth and deepen its competitive moat.

Key Considerations

ECG’s Q2 results highlight a business at the intersection of secular infrastructure demand and disciplined operational execution. However, the transition to a higher mix of early-stage, multi-year projects and increased CapEx introduces new variables for investors to monitor.

Key Considerations:

  • Backlog Conversion Pace: With a record backlog and more projects in early phases, timing of revenue recognition will be less predictable, potentially affecting quarterly results.
  • Margin Sustainability: Margin gains from project pull-forward and execution may not repeat in the near term as the mix shifts toward ramping projects with fewer near-term write-ups.
  • Cash Flow Dynamics: CapEx and working capital requirements are rising in line with growth, requiring careful management to maintain liquidity and balance sheet strength.
  • End-Market Diversification: While data center and T&D are clear growth engines, the hospitality market in Las Vegas is showing early signs of recovery but has not returned to prior peak levels.
  • M&A Execution Risk: While the acquisition pipeline is expanding, integration and cultural fit will be critical if ECG pursues inorganic growth to accelerate geographic expansion.

Risks

Near-term margin pressure is likely as ECG ramps a higher mix of large, early-phase projects, reducing opportunities for execution-driven upside. The company’s cash flow profile could become more variable as CapEx and working capital rise to support growth. External risks include potential project delays, supply chain disruption, and shifts in utility or data center spending patterns. Management’s forward-looking statements acknowledge these timing and mix uncertainties.

Forward Outlook

For Q3 2025, ECG guided to:

  • Continued strong revenue, with growth rates moderating as project pull-forward effects normalize.
  • Margins trending in the low to mid 7% range, consistent with recent quarters excluding upside from project completion timing.

For full-year 2025, management raised guidance:

  • Revenue of $3.3 to $3.4 billion (up from $3.0 to $3.1 billion).
  • EBITDA of $240 million to $255 million (up from $210 million to $225 million).

Management emphasized that the higher mix of early-phase projects and project scheduling variability will impact margin visibility and workflow ramp through year-end.

  • Backlog mix and project cadence are key drivers for H2 performance.
  • Cash generation expected to remain solid, but working capital swings may continue as large projects ramp.

Takeaways

ECG’s Q2 performance demonstrates strong demand tailwinds and operational discipline, but the evolving project mix and investment cycle require close monitoring.

  • Secular Demand Remains Robust: Data center and utility infrastructure spending are driving both near-term results and long-term backlog visibility.
  • Execution and Prefab Investments Support Differentiation: Margin gains and customer feedback validate ECG’s strategy, but repeatability will be tested as project mix evolves.
  • Watch Backlog Conversion and Capital Allocation: Investors should track how ECG manages timing risk, cash flow, and deployment of new capital as growth accelerates and multi-year projects ramp.

Conclusion

ECG’s record backlog and raised guidance reflect a business capitalizing on infrastructure megatrends, while operational discipline and strategic investments in prefab and talent support continued outperformance. However, the shift to early-phase projects and higher CapEx introduce new timing and margin dynamics that investors must monitor through 2025 and beyond.

Industry Read-Through

ECG’s results reinforce the strength of secular trends in data center and grid modernization spending, with implications for peers in specialty contracting, engineering, and construction. The company’s focus on prefab and project execution highlights the growing importance of operational efficiency and safety in winning complex jobs. For the broader sector, the shift toward multi-year, large-scale projects may lead to more variable quarterly results and a greater emphasis on backlog quality and conversion. Competitors lacking scale, geographic reach, or prefab capabilities may struggle to match ECG’s execution and customer value proposition.