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Sterling Infrastructure (STRL) Q4 FY25 earnings call: guidance and Q&A

Earnings call· Dec 2025 (Q4 FY25)· Industrials· Feb 26, 2026

Source: earnings call transcript

Executive summary

Sterling Infrastructure Q4 FY25 — Strong E-Infrastructure Growth and Record Backlog

Sterling Infrastructure delivered a strong Q4 FY25, marked by exceptional growth in E-Infrastructure and record backlog, despite facing headwinds in its Building Solutions segment. The company is strategically expanding its mission-critical capabilities and geographic footprint, particularly in Texas, leveraging its combined site development and electrical services for future growth. Management expresses confidence in multi-year opportunities, especially in data centers and semiconductors, and is actively pursuing strategic acquisitions to enhance capacity.

Highlights

5
  • Full year 2025 revenue grew over 32% and adjusted diluted EPS grew over 53%.

  • Q4 2025 revenue grew 69%, driven by 123% growth in E-Infrastructure and 24% in Transportation Solutions.

  • Q4 2025 adjusted diluted EPS grew 78% to $3.08.

  • Signed backlog reached $3 billion, a 78% increase from year-end 2024, with organic growth of 50%.

  • Full year 2025 adjusted EBITDA margins exceeded 20% for the first time in company history.

Concerns

4
  • Building Solutions full year 2025 revenue declined 6% and adjusted operating profit declined 23%.

  • Building Solutions Q4 2025 revenue declined 9% and adjusted operating margins were 10%.

  • Anticipate Building Solutions revenue to decline in the high single to low double digits in 2026.

  • Current soft market conditions in Building Solutions are expected to continue in the near term.

Guidance & targets

CategoryTargetConfidence
Revenue
$3.05 billion to $3.2 billion
high materiality
High
Diluted EPS
$11.65 to $12.25
high materiality
High
Adjusted Diluted EPS
$13.45 to $14.05
high materiality
High
EBITDA
$587 million to $620 million
high materiality
High
Adjusted EBITDA
$626 million to $659 million
high materiality
High
Capital Expenditures
$100 million to $110 million
medium materiality
High
E-Infrastructure Revenue Growth
40% or higher
high materiality
High
E-Infrastructure Legacy Business Revenue Growth
20% or higher
medium materiality
High
E-Infrastructure Adjusted Operating Profit Margins
23% to 24% range
high materiality
High
Transportation Solutions Revenue Growth
low to mid-single digits
medium materiality
Medium
Transportation Solutions Margin Expansion
continued margin expansion
medium materiality
Medium
Building Solutions Revenue Decline
high single to low double digits
medium materiality
Medium
Building Solutions Adjusted Operating Margins
low double digits
medium materiality
Medium
Operating Cash Flow
continued strength
medium materiality
Medium
Free Cash Flow Conversion to EBITDA
80% range
medium materiality
Medium

Segment performance

SegmentRevenueYoYQoQMargin
E-Infrastructure Solutions
Driven by shift towards large mission-critical projects and geographic expansion. Data center market was the primary growth driver in Q4. Multiyear visibility remains excellent.
Organic growth (FY25): 40%Adjusted operating income growth (FY25): 67%Adjusted operating margin increase (FY25): >120 bpsOrganic growth (Q4): 67%Adjusted operating income growth (Q4): 91%Legacy E-Infrastructure site development operating margins (Q4): flat with prior yearRocky Mountain site development operation growth: >150% from prior yearCEC revenue increase (Q4): 21% from prior year Q4CEC margins (Q4): in line with expectationsMission-critical work in signed backlog: 84%
$1.8 billion (FY25)59% (FY25)123% (Q4)nearly 25% (FY25 adjusted operating margin)
Transportation Solutions
Driven by strong market demand and mix shift towards higher margin services. Strong award activity and conversion of unsigned backlog.
Adjusted operating profit growth (Q4): >100%Backlog (year-end): $1.1 billion (81% year-over-year increase)
$900 million (FY25)17% (FY25)24% (Q4)66% (FY25 adjusted operating profit growth)
Building Solutions
Overall demand for homes impacted by affordability challenges. Current soft market conditions expected to continue.
Adjusted operating profit decline (FY25): 23%
$300 million (FY25)-6% (FY25)-9% (Q4)10% (Q4 adjusted operating margin)

STRL operating KPIs by quarter

STRL operating KPIs stated on its earnings calls, by fiscal quarter
KPIThis call Dec 2025 Q4 FY25 Mar 2026 Q1 FY26 Jun 2026 Q2 FY26Change vs prior quarter
Backlog
$3B Signed backlog at the end of the quarter totaled $3 billion, a 78% increase from year-end 2024. Source: earnings call transcript
$3.8B Signed backlog at the end of the quarter totaled $3.8 billion, a 78% year-over-year increase and combined backlog grew 131% to reach $5.2 billion. Source: earnings call transcript
$4.3B Signed backlog at quarter end totaled $4.3 billion, up 116% year-over-year and combined backlog increased 150% to reach $5.6 billion. Source: earnings call transcript
+13.2%
Backlog Transportation Solutions
$1.1B We ended the quarter with Transportation Solutions backlog at $1.1 billion, and 81% year-over-year increase, driven by strong award activity and the conversion of unsigned backlog to sign backlog. Source: earnings call transcript
$1.04B We ended the quarter with Transportation Solutions backlog at $1.04 billion, a 20% year-over-year increase. Source: earnings call transcript
$969M We ended the quarter with Transportation Solutions backlog at $969 million, a 35% year-over-year increase. Source: earnings call transcript
-6.8%
Combined backlog
$3.3B Combined backlog of $3.3 billion increased 81% from prior year-end or 42%, excluding CEC. Source: earnings call transcript
$5.2B Signed backlog at the end of the quarter totaled $3.8 billion, a 78% year-over-year increase and combined backlog grew 131% to reach $5.2 billion. Source: earnings call transcript
$5.6B Signed backlog at quarter end totaled $4.3 billion, up 116% year-over-year and combined backlog increased 150% to reach $5.6 billion. Source: earnings call transcript
+7.7%
Book-to-bill ratio
1.64 ratio Fourth quarter 2025 book-to-burn ratios were 1.64x for backlog and 0.81x for combined backlog. Source: earnings call transcript
2.1 ratio First quarter 2026 book-to-burn ratios were 2.1x for backlog and 3.5x for combined backlog. Source: earnings call transcript
1.4 ratio Second quarter 2026 book-to-burn ratios were 1.4x for backlog and 1.3x for combined backlog exclusive of the impact of the Stone Ridge acquisition. Source: earnings call transcript
-33.3%
Book-to-bill ratio Combined backlog
0.81 ratio Fourth quarter 2025 book-to-burn ratios were 1.64x for backlog and 0.81x for combined backlog. Source: earnings call transcript
3.5 ratio First quarter 2026 book-to-burn ratios were 2.1x for backlog and 3.5x for combined backlog. Source: earnings call transcript
1.3 ratio Second quarter 2026 book-to-burn ratios were 1.4x for backlog and 1.3x for combined backlog exclusive of the impact of the Stone Ridge acquisition. Source: earnings call transcript
-62.9%

Operating figures the company stated on at least two of the calls shown, checked against each call's transcript. Click a figure to read the sentence. A dash means it was not stated that quarter.

Orderbook & backlog

Signed backlog $3 billion year-end 2025

78% increase from year-end 2024

Approximately 50% increase on a same-store basis.

Unsigned awards $301 million year-end 2025
Pipeline of future phase opportunities >$1 billion year-end 2025

Predominantly related to mission-critical projects. Provides visibility into a pool of work approaching $4.5 billion for Sterling.

Combined backlog $3.3 billion year-end 2025

81% increase from prior year-end

42% increase excluding CEC.

Book-to-burn ratio (backlog) 1.64x Q4 2025
Book-to-burn ratio (combined backlog) 0.81x Q4 2025
Transportation Solutions backlog $1.1 billion Q4 2025

81% year-over-year increase

Driven by strong award activity and conversion of unsigned backlog.

E-Infrastructure aggregate backlog >$3 billion Q4 2025

Aggregate of signed backlog, unsigned electrical awards, and future phased site development opportunities.

Deals & partnerships

CEC Electrical contracting business

Acquisition performing very well, particularly in the Texas market. Contributed to E-Infrastructure growth.

Capital programs

CEC modular build facility expansion underway

Benefit:over 300,000 square feet

In the process of signing a lease to triple the size of the facility. Aims to prebuild more in a factory condition to ship to the field, improving margins and capacity.

Risks & headwinds

Soft market conditions in Building Solutions near term (2026)

Q4 revenue declined 9%; FY25 revenue declined 6%; FY26 revenue expected to decline high single to low double digits.

Mitigation:Diversified portfolio and strategy to focus on growth in high-margin end markets. Opportunity for share gain coming out of a down cycle.

Affordability challenges impacting home demand 2026

Building Solutions revenue decline

Mitigation:Key geographies (Dallas Fort Worth, Houston, Phoenix) expected to see population growth driving new home demand. Expect to pick up market share coming out of the downturn.

Residential market inventory post-turnaround after market turnaround

3-4 months of inventory on the ground

Mitigation:Acknowledged as a factor that will delay new builds even after market conditions improve.

What to watch in Q1 FY26

Texas E-Infrastructure Awards

Q1 2026
Current Actively working and winning jobs
Target Announcement of 'very nice awards'

Why it matters

Confirms successful geographic expansion and integration of CEC, driving E-Infrastructure growth in a key market.

I think in the first half of this year, we're going to be able to talk about some very nice awards that take place in Texas.

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Q&A highlights

Transportation backlog was stronger than expected. Were there any large awards or notable call-outs?

No single large project, but consistent good bid activity. Only 50-60% of the current funding cycle has been spent, and projects continue to be let. The end of the funding cycle is not a 'toggle switch'; extensions adjusted for inflation are common.

“Nothing in particular. There wasn't one big giant project or anything. I think what people tend to get confused with is even though we're coming to the end of a funding cycle, only about 50% to 60% of the total funding has been spent.”

asked by Brian Brophy · answered by Joseph Cutillo

2 min read 6 chapters

Detailed narrative

E-Infrastructure Growth & Expansion

Sterling's E-Infrastructure segment demonstrated robust performance, with Q4 revenue growing 123%, including 67% organic growth, primarily driven by the data center market. The Rocky Mountain site development operation, focused on mission-critical work, grew over 150% year-over-year. The company is actively pursuing geographic expansion, particularly into Texas and the Pacific Northwest, pulled by customer demand for larger, longer-duration mission-critical projects.

Texas Market Focus

The Texas market is a significant growth area, described as "on fire," with substantial opportunities for both electrical and site development services. The CEC acquisition is performing well, with its Q4 revenue increasing 21% year-over-year. Sterling is strategically attacking the Texas market from both East (Dallas/Houston corridor) and West (using Rocky Mountain resources) and is seeking strategic acquisitions within the state to enhance assets, resources, and capacity.

Backlog & Pipeline Strength

The company ended Q4 FY25 with a record signed backlog of $3 billion, representing a 78% increase year-over-year (50% on a same-store basis). When combined with $301 million in unsigned awards and over $1 billion in future phase opportunities, Sterling has visibility into approximately $4.5 billion of work. Mission-critical projects, including data centers, large manufacturing, and semiconductors, constitute 84% of the E-Infrastructure signed backlog.

Semiconductor & Manufacturing Outlook

Sterling anticipates a significant wave of mega projects in the semiconductor and manufacturing sectors later in the decade, with some awards expected in 2026. These projects are considerably larger than typical data center jobs, with semiconductor plants potentially spanning 7-10 years and total scopes approaching $1 billion.

The company notes a 3-5 year lead time from announcement to groundbreaking for such facilities due to permitting and equipment procurement.

Modular Construction & AI Adoption

To enhance productivity and margins, Sterling is tripling the size of CEC's modular build facility to over 300,000 square feet, enabling more prefabrication of components like exterior piping, conduit, duct banks, and cabinets. Additionally, the company is actively leveraging AI in its operations, with 6 projects underway. Initial pilots demonstrated a 15-20% increase in project manager capacity, improving efficiency, effectiveness, quality, and safety.

Residential Market Headwinds

The Building Solutions segment continues to face challenges due to affordability issues impacting new home demand. Full year 2025 revenue declined 6%, and Q4 revenue was down 9% with adjusted operating margins at 10%. Management expects these soft market conditions to persist, projecting a high single to low double-digit revenue decline for Building Solutions in 2026, with margins remaining in the low double digits.

Summary of the company's earnings call; see how call summaries are prepared. Not investment advice.