AECOM Secures $1 B Sound Transit Contract to Expand Seattle‑Area Transit

ACM
February 27, 2026

AECOM announced that it has been selected by Sound Transit to deliver design, environmental, and project‑management services for the Seattle‑area regional transit expansion. The award consists of three multiple‑award task order contracts (MATOCs) that cover civil and structural engineering, environmental studies, and project and construction management across the region’s light rail, commuter rail, and bus network. The five‑year Design MATOC positions AECOM as the prime firm and is expected to generate roughly $1 billion in engineering services over its performance period.

The contract expands AECOM’s footprint in the Pacific Northwest and reinforces its strategy of securing large, multi‑year infrastructure contracts that drive revenue and margin growth. The $1 billion engineering‑services value represents a significant long‑term revenue stream, while the MATOC structure provides AECOM with recurring work and the ability to leverage its global expertise across multiple transit projects. This win also signals confidence in AECOM’s design and program‑management capabilities for large‑scale transit programs.

In fiscal year 2025, AECOM reported $16.1 billion in revenue, and its Q1 FY2026 adjusted earnings per share rose to $1.29, beating consensus expectations. The company’s record backlog and continued investment in AI‑driven operational efficiencies support its margin expansion strategy. The Sound Transit contract adds to a portfolio of high‑margin transit projects that have historically delivered strong profitability for AECOM’s transportation practice.

Sound Transit’s expansion is a key component of the Sound Transit 3 plan, which aims to extend the light rail network through 2041. The project is funded through a mix of local taxes, federal grants, and bonds, underscoring the long‑term commitment to regional mobility. AECOM’s role in designing, planning, and managing the next generation of transit infrastructure positions it to capture a substantial share of the growing demand for public transportation in the Seattle area.

Russell Jackson, interim chief executive of AECOM’s global Transportation business, said: "As the top‑ranked transit firm in our industry, AECOM brings global expertise delivering complex light rail, commuter rail and bus networks to help advance large, system‑wide transit programs. We look forward to supporting Sound Transit as it plans, designs and delivers the next generation of regional mobility that increases capacity, improves reliability and expands accessibility."

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