Engineering and maritime consultancy BMT has acquired Sydney-based One2three Naval Architects, the companies said Thursday, adding an established commercial and specialist vessel design house to its global ship-design business.

Terms of the deal were not disclosed.

Founded in 2005, One2three has delivered more than 300 vessels in over 30 countries and is known for hull-form design and high-performance ferries. Its work spans commercial ferries, para-military craft, luxury yachts and battery-powered vessels, with customers across Australia, Europe, Asia, the United Kingdom, and the United States.

BMT said existing customer relationships, delivery teams and active projects would continue without disruption. The acquisition adds design capacity across ferries, specialist craft, autonomy and vessel technologies, and follows BMT's earlier purchase of AMT as the consultancy expands in the Asia-Pacific region.

The move comes as U.S. interest in domestic commercial shipbuilding and ferry construction grows, a market both companies flagged as a target for the expanded design offering.

Graeme Nayler, APAC regional business director at BMT, said, “Bringing [One2three's] expertise into BMT, alongside our global engineering, consultancy and lifecycle heritage, strengthens the way we support customers as vessel programmes become more complex and internationally connected.

“This is a deliberate, long-term investment in maritime design excellence and innovation and, following our acquisition of AMT, a further step in BMT's sustained growth across the Asia-Pacific region." Nayler continued. “Together, it deepens our independent ship design expertise and our ability to work alongside customers and shipyards worldwide, particularly as demand grows for commercial shipbuilding and ferry capability in markets such as the United States."

Steve Quigley, managing director at One2three Naval Architects, said, “One2three has always focused on delivering high-performance vessel designs that meet the operational needs of customers and shipyards internationally. Joining BMT strengthens our ability to scale that experience globally while maintaining the responsiveness, technical quality and customer focus that define our business.

“Access to BMT’s broader international engineering network, AI initiatives, technical knowledge and lifecycle support creates significant growth opportunities for our people, our customers and the markets we support,” Quigley added.

BMT said the combined portfolio would give shipyards and operators broader access to globally connected design and engineering teams, supporting distributed shipbuilding programs across multiple markets.