Aecom (ACM)

The company’s role is typically concentrated in professional services rather than heavy construction ownership. AECOM helps clients assess needs, design technical solutions, manage delivery, and meet regulatory, safety, and sustainability requirements. This positions it in markets where long-term public investment, ageing infrastructure, climate adaptation, and urbanisation create recurring demand for specialist engineering expertise.

AECOM serves governments, transit agencies, utilities, industrial companies, and commercial customers around the world. Its environmental business supports site assessment, permitting, restoration, and resilience planning, while its transportation and water practices address essential infrastructure networks that require continuous maintenance and expansion.

With about 51,000 employees and fiscal 2025 sales of $16.1 billion, AECOM ranks among the largest companies in the engineering and infrastructure consulting sector. Its scale allows it to compete for multi-year framework agreements and major capital programmes, while its technical workforce gives it exposure to a broad mix of infrastructure spending rather than a single construction cycle.