A family dynasty just saved Europe's biggest green steel project – is this a new trend in climate finance?

Stegra spent months knocking on the Swedish government's door – and didn't get much back.

When the green steel startup revealed last autumn it needed over $2bn more to finish its plant in Boden, Sweden's response was a $41m grant, roughly a quarter of what Stegra had applied for. And it was conditional on the company proving it had secured enough private capital by spring 2026.

"At the end of the day, companies have to stand on their own two feet," finance minister Elisabeth Svantesson said in an interview with Bloomberg in January. "The state shouldn't always decide which companies should be supported."

After Sweden's battery champion Northvolt collapsed last year after the government declined to bail it out – Stockholm has become even less inclined to write cheques for capital-hungry industrial projects.

But this week, the money materialised – not from Stockholm, but from a consortium of investors and foundations led by the Wallenberg family, a Swedish industrial dynasty which the Financial Times estimates is worth around €250bn.

It's a major move that might signal a shift in how green industrial projects are funded.

"You have to see this as more than an investment," a source close to the deal told Swedish newspaper Dagens Industri. "The Wallenbergs coming in means that Stegra will become part of the elite of Swedish industry and will never be allowed to go bankrupt."

A dynasty steps in

Wallenberg Investments led Stegra's $1.4bn rescue round, forming a consortium with Singapore's Temasek and IMAS Foundation. Existing backers Altor, Hy24, and Al Gore’s Just Climate also participated.

The deal makes Wallenberg Investments the largest shareholder in Stegra, with Leif Johansson – former CEO of both Volvo and Ericsson – proposed as incoming board chair.

Johansson, a veteran of the Wallenberg industrial sphere and ranked among Sweden's most powerful people, told Impact Loop that the family was committed to investing in sustainability, among "other areas."

"The climate issue is real, it will remain so," he said a press conference in Stockholm this week. "Even if parts of the political establishment choose to turn away from it."

"Major environmental problems don't simply disappear because you don't want to invest in them," Johansson continued.

The funding offers more than just a lifeline for the green steel project.

The Wallenbergs are joined too by other patient capital providers. IMAS Foundation, the investment arm of IKEA’s parent, the Ingka Group, makes infrastructure commitments running up to 25 years. Just Climate, founded by former US vice president Al Gore, was built specifically for hard-to-abate sectors too capital-intensive for conventional mandates.

These patient investors provide exactly the kind of capital Stegra needs to finish its green steel plant, which is around 60% complete, according to its CEO Henrik Henriksson.

Filling a funding gap

Wallenberg stepping in to rescue Stegra follows a number of high-level bankruptcies in the impact world, with companies struggling to secure enough financing to scale.

The EU's late-stage venture and growth capital market remains a fraction of its US counterpart – worth around 0.2% of EU GDP, or roughly one quarter of the equivalent American market.

As seen in Sweden, some governments are also becoming reluctant to bankroll green industrial projects, especially since political sentiment has moved away from climate toward defence and security.

Against that backdrop, sources of patient capital such as family offices, foundations, and pension funds are increasingly sought after by impact companies and venture funds.

Nearly a third of family offices plan to increase their exposure to sustainability and impact, according to BlackRock's 2025 Global Family Office Survey, driven in part by a younger generation of heirs with stronger sustainability leanings.

However, while that's a positive sign for cash-starved startups, it exposes a potential vulnerability in Europe's green transition: the projects that need to get built are increasingly dependent on whether the right family happens to believe in them.