Legion (LGN) Q1 2026: Backlog Doubles to $5.4B as Data Center Demand Drives Expansion
Legion’s Q1 delivered a decisive inflection in scale and visibility, anchored by data center demand and disciplined execution. The combination of organic growth and the Bowers acquisition propelled backlog and awards to $5.4 billion, setting a new baseline for forward revenue and de-risking guidance. Management’s confident outlook and margin discipline signal a business model shift toward higher throughput and capital efficiency, with optionality for further M&A and capacity expansion.
Summary
- Data Center Tailwind: Record backlog and awards signal sustained demand visibility and execution leverage.
- Margin Structure Shift: Mix and scale gains are driving improved EBITDA conversion and SG&A leverage.
- Strategic Flexibility: Delevered balance sheet enables disciplined M&A and organic capacity investment.
Business Overview
Legion is a provider of mission-critical building systems and services, specializing in installation and maintenance (I&M)—mechanical, electrical, and fabrication solutions for sectors like data centers, technology, life sciences, and healthcare—and engineering and consulting (E&C), which encompasses project management, design, and sustainability consulting. The company generates revenue through project execution, recurring maintenance, and consulting engagements, with its business increasingly weighted toward high-growth technology and infrastructure end markets.
Performance Analysis
Legion’s Q1 2026 results showcased a step-change in scale and profitability, with total revenue more than doubling year-over-year, propelled by both the Bowers acquisition and robust organic growth, especially in I&M. Excluding Bowers, organic revenue still surged 57%, underscoring the strength of Legion’s core markets. Installation and maintenance accounted for the lion’s share of growth, driven by data center and technology clients, and supported by solid gains in healthcare, life sciences, and education.
Adjusted EBITDA grew by 132% year-over-year, with margin expansion reflecting both scale and project execution improvements. The company’s adjusted gross margin dipped due to mix shift toward I&M and a lower-margin project management mix in E&C, but the I&M segment itself saw margin improvement. Free cash flow conversion exceeded 85% of adjusted EBITDA, reflecting operational discipline and improved working capital management.
- Backlog Expansion: Total backlog and awards reached $5.4 billion, up 104% YoY, with organic backlog up 36% even excluding Bowers.
- Segment Mix Shift: I&M now dominates revenue and backlog, while E&C growth is increasingly tied to cross-selling into technology clients.
- SG&A Leverage: Adjusted SG&A as a percent of revenue fell to 8%, down from 12.6% a year ago, highlighting scale benefits.
With a book-to-bill of 1.2x and a growing qualified labor force, Legion’s operational flywheel is firmly in motion, supporting both near-term execution and longer-term growth optionality.
Executive Commentary
"Total revenues more than doubled year over year to just over a billion dollars. Now, to put that into perspective, Legion's generated $1.2 billion of revenue for all of 2022. So, we've grown revenue at an incredible pace over the past three years... Our historic growth was roughly split evenly between organic growth and through acquisitions."
Jeff Sprower, Chief Executive Officer
"Our first quarter 2026 revenues surpassed our guidance, primarily due to outperformance in the installation and maintenance segment, with very strong project execution and fabrication as a key driver... As we gain in efficiency, one of the outcomes is that we're able to complete and ship product ahead of schedule, all while maintaining our high-quality standards."
Stephen Butts, Chief Financial Officer
Strategic Positioning
1. Data Center and Technology Market Dominance
Data center and technology clients are now the primary engine of Legion’s growth, with organic growth in this end market reaching approximately 30%. The Bowers acquisition broadened Legion’s mechanical presence in key regions and diversified the client base, including increased exposure to hyperscalers and co-locators. Management highlighted visibility into orders extending as far as Q4 2028, anchoring Legion’s long-term demand pipeline.
2. Fabrication and Modular Construction Scale
Fabrication capacity stands at 1.3 million square feet and is largely operational, enabling Legion to execute on current backlog and absorb incremental demand. The company is leveraging automation and process learning to drive higher throughput, with custom fabrication now exceeding 20% of I&M segment revenue and expected to climb further. This shift supports both margin accretion and capital efficiency, as prepayments and modular delivery reduce working capital intensity.
3. Cross-Selling and Segment Integration
Legion’s strategic thesis is to deepen client relationships by integrating I&M and E&C services, particularly with high-tech and semiconductor clients. This approach increases client stickiness and unlocks new revenue streams, as demonstrated by recent traction in cross-selling engineering services to existing installation clients. The E&C segment, while facing a margin mix shift, is positioned to benefit from broader end-market exposure and project management growth.
4. M&A Optionality and Balance Sheet Strength
Net leverage has declined to 1.8x, well below post-IPO levels, providing Legion with the flexibility to pursue both bolt-on and larger-scale acquisitions. Management emphasized discipline, focusing on targets that add capacity, expertise, or market access, and noted that while valuations for data center-focused MEP (mechanical, electrical, plumbing) assets are rising, they remain within reach for accretive deals.
5. Margin and Cost Structure Evolution
Adjusted SG&A leverage and project execution are driving sustainable margin improvement, even as revenue mix shifts toward lower-margin but higher-volume service lines. Management expects continued SG&A efficiency as scale increases, and highlighted that custom fabrication work is margin-accretive relative to large installation projects.
Key Considerations
This quarter marks a structural shift in Legion’s business model, with data center demand and fabrication scale driving both revenue visibility and margin stability. The integration of Bowers and ongoing operational improvements further support Legion’s ability to capitalize on secular trends in digital infrastructure and mission-critical systems.
Key Considerations:
- Data Center Pipeline Visibility: Orders and fabrication schedules now extend multiple years, with demand from hyperscalers and semiconductor clients underpinning backlog.
- Modular Construction Leverage: Custom fabrication and modular solutions are driving higher throughput and improved working capital dynamics.
- SG&A and Margin Discipline: Scale-driven SG&A efficiency and project execution are supporting EBITDA margin expansion, despite mix headwinds.
- M&A and Organic Growth Balance: Delevered balance sheet enables Legion to pursue disciplined M&A while investing in organic capacity as demand warrants.
- Labor Force Expansion: The company’s ability to attract and retain skilled technicians and engineers is a key enabler for project delivery and backlog conversion.
Risks
Execution risk remains around integrating large acquisitions, managing labor availability, and maintaining project delivery timelines as backlog grows. Revenue mix shifts—especially toward lower-margin project management or equipment pass-through—could pressure margins if not offset by scale and fabrication gains. Rising M&A valuations in the data center ecosystem could challenge Legion’s disciplined approach. Additionally, sector cyclicality and changes in technology infrastructure spending could impact backlog conversion and demand visibility.
Forward Outlook
For Q2 2026, Legion guided to:
- Consolidated revenue of $1.05 to $1.1 billion
- Adjusted EBITDA of $115 to $125 million
For full-year 2026, management raised guidance:
- Revenue range of $4.1 to $4.3 billion (up 10% from prior guidance)
- Adjusted EBITDA of $470 to $490 million (up from $400 to $430 million)
Management flagged continued confidence in project execution, backlog visibility, and margin discipline, while noting that seasonality remains more pronounced in E&C. CapEx is expected to be $65 million for the year, with two-thirds allocated to growth initiatives. Interest and depreciation expenses are expected to trend modestly higher in Q2 and full year.
- Data center and technology end-market remains the predominant growth driver
- SG&A leverage and working capital discipline to support cash flow conversion
Takeaways
Legion’s Q1 results confirm a durable shift in scale, margin structure, and demand visibility, with secular tailwinds in digital infrastructure driving record backlog and awards. The company’s operational discipline, balance sheet strength, and strategic optionality position it to capitalize on both organic and inorganic growth opportunities while maintaining margin and cash flow focus.
- Backlog and Pipeline Visibility: The $5.4 billion backlog anchors revenue for 2026 and beyond, de-risking guidance and supporting continued investment in capacity and talent.
- Margin and Cash Flow Discipline: Improved SG&A leverage and project execution are translating to higher EBITDA margins and free cash flow conversion, providing capital for growth and M&A.
- Watch for Capacity and M&A Moves: Investors should monitor Legion’s ability to further scale fabrication and modular construction, as well as its discipline in pursuing accretive M&A in a rising valuation environment.
Conclusion
Legion’s Q1 2026 performance marks a pivotal quarter, with record backlog, strong organic and acquired growth, and a clear path to sustained margin expansion. The company’s operational execution, balance sheet flexibility, and end-market positioning set a robust foundation for continued outperformance in digital infrastructure and mission-critical systems.
Industry Read-Through
Legion’s results and commentary provide a strong read-through for the broader building systems, engineering, and infrastructure services sector. Data center and technology-driven demand is not only sustaining but accelerating, with multi-year visibility supporting capital investment and M&A across the value chain. Fabrication and modular construction are emerging as critical differentiators, enabling faster project delivery and improved capital efficiency. Peer companies exposed to digital infrastructure, mission-critical systems, and modular solutions are likely to see similar tailwinds, though execution and margin management will remain key competitive levers as mix and scale shift rapidly. Rising M&A valuations and labor constraints could shape sector dynamics, favoring operators with scale, integration capability, and disciplined capital allocation.