Aecom (ACM) | The Buildout — AI Infrastructure
The Verdict
Aecom sells engineering and advisory expertise rather than a product. Governments, utilities, developers and hyperscalers hire it to plan, design, permit and program-manage physical assets: roads, water systems, power and grid upgrades, defence facilities and data centers. Its link to the AI buildout runs through that demand, since data-center and high-tech work is described as among its fastest-growing businesses and it also designs the power and grid assets data centers need. It does not disclose AI revenue, and there is no AI reporting segment.
| Market Cap | — |
| Revenue (TTM) | $15.4B |
| Revenue Growth | −4.2% |
| EBITDA Margin (TTM) | 5.2% |
| Net Cash | $758.7B |
| Earnings Beats | 6 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- Backlog rose 13% to a new all-time high in Q3, on 1.6x total book-to-burn, 1.8x in the Americas and 1.4x year to date.
- Design net service revenue grew 5% in Q3 adjusted for one less working day, with Americas design up 6% and guided to 7%+ in Q4; the Americas design pipeline is up over 20% for three straight quarters.
- International inflected: NSR +4%, adjusted operating margin 14.3% and backlog +28%, against -3% constant-currency NSR and an 11% margin in Q2.
- Two AI-enabled wins aggregate almost $1 billion, one a recompete where management says its proprietary AI was 'a central element of the project proposal and our competitive edge'; management says these contracts improve margins rather than add revenue.
- Balance sheet: $2 billion of undrawn borrowing capacity, no maturities for several years and $3,331.9M of total debt at June 30, 2026.
What We’re Watching
- Both legacy construction-management projects have to complete on the redrawn dates, Project 2 in Q1 FY2027 and Project 1 near the end of Q2 FY2027, with no further charges.
- The charge's cash tail: about $0.5 billion across the first two quarters of FY2027, plus $30-35M of extra FY27 interest expense, against a $600-650M claims balance management expects to stay in range through project completion.
- FY2027 guidance and segment detail were deferred to the next call; the test is whether the construction-management drag is confined to the first half of FY2027, as management says.
- Two demand offsets moved the wrong way or stayed constrained: the Department of War pipeline decelerated to +30% from +50%, and Middle East impacts are expected to continue through Q4 FY2026.
The thesis reads intact rather than strengthening. The design business grew, backlog hit a record, ex-charge adjusted EBITDA and EPS rose 5% and 11%, and management's containment claim, that no design-build P3 work exists in the CM portfolio outside these two projects, is the strongest assurance available short of completing them. Set against that: a reported guidance cut three months after a second raise, a free-cash-flow reversal one quarter after reaffirmation, and securities-investigation solicitations after both the Q2 and Q3 prints. The open question is whether the two projects finish on the redrawn FY2027 dates without a second charge.
Earnings Beat
Fiscal Q3 2026 revenue fell 14% year over year to $3,586M, and net service revenue fell 16% to $1,609M, after a $337M pretax charge on a legacy construction-management project and slower-than-anticipated project starts in that business. Excluding the charge, adjusted EBITDA and EPS improved 5% and 11% year over year, and free cash flow was positive $55 million. Management attributes the delay to overall productivity of subcontractors on the last phase of the project.
| Metric | Q3 FY2026 | Q2 FY2026 | Q3 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $3.6B | $3.8B | $4.2B | −14.2% |
| Gross margin | -0.9% | 7.8% | 7.8% | -870bps |
| EBITDA | −$76M | $298M | $339M | −122.4% |
| EPS | $-0.67 | $1.39 | $0.98 | −168.5% |
| Net service revenue | $1,609M | $1,948M | n/a | -16% YoY |
+13% to a new all-time high on record quarterly wins and a 1.6 book-to-burn across the business, including 1.8x in the Americas.— Troy Rudd, CEO, 2026-08-11
Management tone: Tone moved from confidently bullish at Q2, when management raised full-year profit guidance for the second time that year, to contrite and containing at Q3. Management disclosed the charge's size, cause, revised completion dates and cash and interest consequences, answered analyst questions on the projects directly, and presented reported results alongside an ex-charge bridge while deferring FY2027 segment detail to the next call.
Management Guidance
For FY2026 management guides reported NSR of about $7.3 billion, adjusted EBITDA of $950 million and adjusted EPS of $4.05. Excluding the charge, it guides NSR of $7.65-$7.7 billion, adjusted EBITDA of $1.29 billion and adjusted EPS of $6.00, with the adjusted EBITDA margin guide raised to 17.4% from 17%. Free cash flow is guided to $300 million, cut from about $400 million, with about $0.5 billion of cash impact across the first two quarters of FY2027 and $30-35 million of additional FY27 interest expense. Restructuring is unchanged at $150-200 million, with only $54 million booked through Q3 and most expected in Q4. Management guides Americas margins to normalize in Q4 FY2026 and Americas design NSR to 7%+ adjusted for workdays, and says construction-management growth arrives in the second half of FY2027 rather than the first.
Trajectory
Revenue has stepped down through fiscal 2026, from $4,178M in the June 2025 quarter to $3,586M in the June 2026 quarter, and Q3 net service revenue fell 16% year over year. The decline is concentrated in construction management: the pretax charge plus slower-than-anticipated project starts. The rest of the business is not contracting, with design NSR up 5% adjusted for one less working day and Americas design guided to 7%+ in Q4. The code-computed signals read gross, operating and EBITDA margins as stable across recent quarters, and the company reported ex-charge adjusted EBITDA and EPS up 5% and 11%.
The Model
The model projects FY+1 revenue of $16,520M with EBITDA of $1,454M (8.8% margin on revenue), and FY+2 revenue of $17,630M with EBITDA of $1,675M (9.5% margin). The near-term anchor is the record backlog, up 13% to an all-time high on 1.6x book-to-burn, converting as the two legacy construction-management projects complete and free staff. FY+2 rests on International's growth and margin mix continuing and on the restructuring benefit landing, which management ties to a 20%+ adjusted operating margin exit rate by fiscal 2028.
| Metric | FY2025 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $16.1B | $16.5B | $17.6B |
| YoY Growth | — | +2.4% | +6.7% |
| EBITDA | $1.2B | $1.5B | $1.7B |
| EBITDA Margin | 7.4% | 8.8% | 9.5% |
Projections are the median of 5 independent model runs. The model’s revenue sits 97.1% above analyst consensus.
For FY2026 management guides reported NSR of about $7.3 billion, adjusted EBITDA of $950 million and adjusted EPS of $4.05. Excluding the charge, it guides NSR of $7.65-$7.7 billion, adjusted EBITDA of $1.29 billion and adjusted EPS of $6.00, with the adjusted EBITDA margin guide raised to 17.4% from 17%. Free cash flow is guided to $300 million, cut from about $400 million, with about $0.5 billion of cash impact across the first two quarters of FY2027 and $30-35 million of additional FY27 interest expense. Restructuring is unchanged at $150-200 million, with only $54 million booked through Q3 and most expected in Q4. Management guides Americas margins to normalize in Q4 FY2026 and Americas design NSR to 7%+ adjusted for workdays, and says construction-management growth arrives in the second half of FY2027 rather than the first.
What Could Go Right — and Wrong
- Both legacy construction-management projects complete on the redrawn dates with no further charges, validating the containment claim.
- The $600-650M claims balance converts to cash, easing the roughly $0.5 billion FY27 burn and bringing the leverage reduction and capital-return resumption forward.
- Data-center and high-tech demand converts into disclosed, quantified backlog or revenue; management currently sizes none of it.
- The post-quarter AI-enabled win enters backlog, and the value-capture mechanism on those contracts is clarified toward genuine upside sharing for Aecom.
- FY2027 guidance shows the construction-management drag confined to the first half, with International margins building off 14.3% and design growth in the mid-to-high single digits.
- A further slip or a second charge on either legacy project; a one-quarter delay already produced a $337M pretax charge and $185M of quarterly cash use.
- The claims recover slower or smaller than the $600-650M carried, pushing the leverage-recovery date past the second quarter of FY2027 and delaying the resumption of capital returns.
- The roughly $0.5 billion FY27 cash burn is larger or faster than disclosed.
- Construction management fails to grow in the second half of FY2027, dragging the 5-8% long-term net service revenue algorithm that management re-scoped to include it.
- Data-center demand fails to convert, either because hyperscaler capex is redirected to component inflation or because risk-allocation discipline prices Aecom out of the work.
Looking Ahead
Two things decide the next twelve months. First, the legacy projects: Project 2 is expected to reach substantial completion in Q1 FY2027 and Project 1 near the end of Q2 FY2027, with about $0.5 billion of cash absorbed across those two quarters. Second, FY2027 guidance, which management deferred to the next call. The demand backdrop is supportive on the source's evidence, with less than half of IIJA funding in Aecom's core markets spent, a House proposal of $580 billion for surface transportation, and data centers described as among its fastest-growing businesses.
- Q4 FY2026Q4 FY26 results — Tests guided Americas margin normalization and 7%+ Americas design NSR.
- Q4 FY2026Restructuring lands — Most of the $150-200M FY26 programme expected in Q4; $54M booked by Q3.
- Next callFY2027 guidance — Deferred segment detail; tests whether the CM drag is confined to H1 FY27.
- Q1 FY2027CM project 2 completion — Substantial completion on the prior forecast, with no further charge.
- Q1-Q2 FY2027About $0.5B cash absorbed — The disclosed cash impact across the first two quarters of FY2027.
- Q2 FY2027CM project 1 completion — Slipped from Q1 FY27; the crux of the containment claim.
Financials
Annual Summary
| Metric | FY2024 | FY2025 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $16.1B | $16.1B | $15.4B | +0.2% |
| Gross Margin | 6.8% | 7.5% | 5.7% | +78bps |
| EBITDA | $1.0B | $1.2B | $798M | +19.5% |
| EBITDA Margin | 6.2% | 7.4% | 5.2% | +120bps |
| Net Income | $402M | $562M | $288M | +39.7% |
| Free Cash Flow | $708M | $685M | $176M | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)5.7%
- EBITDA Margin (TTM)5.2%
- Net Margin (TTM)1.9%
- FCF Conversion22.1%
- SBC / Revenue0.3%
The Company
Aecom sells professional expertise. The FY2025 10-K describes it as 'a leading global provider of professional infrastructure consulting and advisory services,' providing advisory, planning, consulting, architectural and engineering design, construction and program management, and investment and development services across transportation, facilities, water, environmental and energy. It matters to the buildout because the same services, from environmental permitting and site selection through stakeholder engagement, design and program management, are what data-center and power projects buy before anything is built.
This is a people-and-contracts business, not a manufacturer. The 10-K names one physical facility, an approximately 9,000-square-foot corporate office at 13355 Noel Road in Dallas. Capacity means staff and utilisation, and management said resources tied up on the two legacy projects would be redeployed when those finish. It reports two segments, Americas and International, plus Aecom Capital, which invests in and develops real estate. Roughly half the top line is pass-through: Q2 FY2026 revenue of $3,801.2M included $1,852.8M of pass-through revenue, which is why management guides on net service revenue.
Business Segments
Competitive Landscape
Aecom competes in a crowded field of engineering and construction-services firms. Management points to a recompete win rate 'in excess of 90%,' an 80%-plus capture rate on enterprise critical pursuits, and the #1 ENR position in transportation, facilities and water claimed on the Q2 call. Peer filings describe the field from the other direction: Fluor names Aecom among a long list of competitors, Parsons places it in a Critical Infrastructure peer group with Jacobs, Stantec, Tetra Tech and WSP, and Tetra Tech lists it among its principal competitors. One data-center operator, Equinix, describes design work as 'fungible.'
- In Parsons' Critical Infrastructure peer group and Tetra Tech's competitor list; Aecom's joint-venture partner on the MetroLink program delivery role for Transport Infrastructure Ireland.
- FluorFluor's filing names Aecom among its competitors; Fluor separately says data-center commercial terms 'remain challenging, especially regarding risk allocation.'
- ParsonsNames Aecom in its Critical Infrastructure peer group alongside Jacobs, Stantec, Tetra Tech and WSP.
- Tetra TechLists Aecom among its principal competitors, published in alphabetical order.
- Lists Aecom in its Building-segment competitor set, citing 'its past acquisitions of Tishman Construction and Hunt Construction Group,' a competitor's characterization the source does not confirm with Aecom.
Supply Chain
Aecom sits between asset owners, including governments, utilities, developers and hyperscalers, and the contractors who build. It designs, permits and program-manages; its inputs are software licences, equipment and materials used on client projects, not components it consumes in production.
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