Nordic fiber firm Midgard Infra is deploying a new subsea cable linking Sweden and Finland.

The company, formerly Altibox Carrier, recently announced that it will extend its planned Oslo–Stockholm long-haul fiber route into Finland via an unrepeatered subsea crossing.

The new segment will land on the coast northeast of Stockholm and in the southwest of Finland, spanning approximately 200 kilometers and totaling 144 fiber pairs.

Full details haven’t been shared, but the new route aims to share no common landing point, cable, or right-of-way with existing systems serving Sweden-Finland.

Construction is scheduled to commence in early 2027, with the system expected to enter service in 2029.

Svein Arild Ims, Midgard Infra CEO, said: "Finland is fast becoming one of the places where Europe builds and runs its largest AI systems, and compute on that scale is only as useful as the connectivity feeding it. A diverse corridor that stops at the Swedish border isn't a diverse Nordic corridor; it's half a solution. By taking the system subsea on a fully unrepeatered crossing, with every active component sitting safely onshore, we are not adding complexity to reach Finland; we are removing it. That is precisely the kind of end-to-end resilience the operators building this next wave of AI infrastructure are now asking us for."

Founded in 2012 and formerly known as Altibox Carrier until a rebrand this year, Midgard Infra provides international connectivity and data services across the Nordics and Europe.

Co-owned by Lyse and HitecVision, Midgard owns and operates subsea cables and terrestrial fiber between Norway, Sweden, Finland, Denmark, and the UK.

Finland and Sweden are linked by several current subsea cables, including GlobalConnect’s STO-HEL-One, Arelion’s BSC North Phase 1, Eastern Light’s Sweden-Finland I, and CITIC Telecom International’s Baltic Sea Submarine Cable systems. GlobalConnect’s Mjolner West and Eastern Light’s Sweden-Finland II are due online next year.