As Arctic security, maritime sovereignty, and polar access rise to the forefront of North American defence priorities, Seaspan Shipyards is positioning a proven Canadian design at the centre of the United States Coast Guard’s next generation of icebreaking capability.

On January 7, 2026, Seaspan announced it has signed agreements with Bollinger Shipyards and Rauma Marine Constructions Oy to provide its production-ready Multi-Purpose Icebreaker (MPI) design, along with associated supply-chain packages, in support of the U.S. Coast Guard’s Arctic Security Cutter (ASC) program. The agreements pave the way for the rapid construction and delivery of up to six new icebreakers, anchoring the future of U.S. polar operations in a design born under Canada’s National Shipbuilding Strategy (NSS).

Under the program structure formally announced by the U.S. Coast Guard last week, Rauma Marine Constructions will build up to two vessels in Finland, with deliveries expected in 2028. Bollinger Shipyards will construct up to four cutters in the United States, with the first U.S.-built vessel expected to enter service in 2029. Seaspan’s role—providing a mature, production-ready design—enables construction to begin immediately, significantly accelerating timelines for a program long recognized as strategically critical.

A Design Proven in the World’s Harshest Waters

The MPI design was developed by Seaspan in partnership with Finland-based Aker Arctic Technology Inc. and refined under Canada’s National Shipbuilding Strategy. Originally conceived to meet the Canadian Coast Guard’s demanding requirements for long-range, multi-mission operations in extreme Arctic conditions, the Polar Class 4 icebreaker design aligns closely with the broad operational envelope of the U.S. Coast Guard.

From sovereignty patrols and search and rescue to logistics support and scientific missions, the MPI’s flexibility makes it a strong foundation for a fleet expected to operate across some of the most challenging maritime environments on the planet.

“The MPI design is a true success story under Canada’s NSS,” Seaspan Shipyards’ CEO John McCarthy said. “The interoperability resulting from a common design and supply chain between the Canadian and American coast guard fleets will create countless opportunities for collaboration throughout the vessels’ operational lives, aligning with the greater goals outlined in the trilateral ICE Pact framework and generating significant lifecycle cost savings for both countries.”

Built in Canada, Ready for the World

One of the defining strengths of the MPI program is its maturity. Design and engineering were completed almost entirely in Canada by Seaspan’s specialized icebreaker design team, and many of the vessel’s systems and equipment suppliers have already been selected. This established design and supply chain—featuring numerous Canadian companies—reduces technical risk while enabling faster procurement and construction for the ASC program.

By leveraging an existing, proven industrial ecosystem, the U.S. Coast Guard gains immediate access to a design that has already cleared key engineering and integration milestones, rather than starting from a clean-sheet concept.

A Global Icebreaking Leader

Seaspan’s involvement in the ASC program builds on a growing international reputation as a leader in icebreaker design and construction. Under Canada’s National Shipbuilding Strategy, the company’s current orderbook includes the world’s largest portfolio of icebreaking vessels, featuring a Polar Class 2 heavy polar icebreaker and up to 16 Multi-Purpose Icebreakers.

The company has already delivered four ice-capable vessels for Canada, with its most recent delivery being the Canadian Coast Guard’s Offshore Oceanographic Science Vessel, completed in 2025. Each program has reinforced Seaspan’s expertise in designing ships capable of sustained operations in ice-infested waters while supporting complex, multi-mission profiles.

Interoperability as Strategy

Beyond shipyards and steel, the ASC collaboration reflects a broader strategic convergence between Canada and the United States in the Arctic. Common vessel designs, shared supply chains, and interoperable fleets offer long-term operational advantages—reducing lifecycle costs, simplifying sustainment, and enabling closer collaboration across missions and regions.

As climate change opens new maritime routes and increases activity in the High North, the MPI-based Arctic Security Cutters represent more than new ships. They signal a shared Arctic blueprint—one rooted in proven design, allied industrial cooperation, and a common commitment to maritime security in the world’s most unforgiving environments.