AI mega-rounds are still dragging venture dollars toward infrastructure — and today’s biggest checks show just how strong that pull is getting.
This is Startup Fundraising. Today, we’re tracking major AI, infrastructure, traveltech, and industrial innovation deals moving the venture market.
Big checks. Bigger signals.
Exactly. Let’s start with Sierra, and a raise that gets awfully close to a billion dollars.
From Kate Rooney at CNBC:
Sierra, an artificial intelligence startup, has raised nearly $1 billion in a new funding round, bringing in $950 million in fresh capital at a $15.8 post-money valuation, led by Tiger and Google's GV.
That is a massive check for an AI customer-service startup — and a massive bet that the “AI agent” layer becomes real software, instead of getting swallowed as a feature inside somebody else’s platform.
Next, from Ventureburn:
Panthalassa has raised $140 million in Series B funding. Peter Thiel led the round. It attracted a wide group of global investors. These include John Doerr, TIME Ventures, SciFi Ventures, Susquehanna Sustainable Investments, and Hanwha Group. Strategic industrial and climate-focused funds also joined.
Ocean-powered AI compute sounds like science fiction, sure — but the pitch is practical: move data processing off crowded grids and into harsh, underused environments. The hard part is reliability. Can wave energy scale enough to make this a real infrastructure play, instead of a very expensive offshore experiment?
Now to BeBeez International:
Trentino-based Smartness announced the closing of a €47 million Series B round, including primary and secondary equity as well as a debt component, in the largest round ever completed in Italy for a vertical SaaS company. The round was led by United Ventures and CDP Venture Capital, with participation from existing investor Partech, which also led Smartness’ 2023 €13 million Series A round.
That’s a pretty strong vote of confidence in hotel tech — especially vertical SaaS that can point to revenue impact, not just nicer dashboards. For Europe’s travel market, the signal is clear: AI for hospitality is moving into the operating core.
From Editorial Team:
Featherless.ai, a serverless inference platform specializing in open-source AI, announced it closed $20 million in Series A funding on April 30. That date matters. The Featherless AI funding round arrives as enterprises worldwide are demanding AI infrastructure they own outright — not infrastructure they merely lease from a shrinking pool of gatekeepers.
The bet here is really about dependency. If open-source models are going to matter in production, then the infrastructure around them has to be accessible too — not locked up behind the same few gatekeepers.
And from Keith Mills at Metrology and Quality News:
BMW i Ventures has launched its third fund, putting $300 million behind a clear premise: that AI will fundamentally reshape how the automotive industry operates and creates value across its entire ecosystem. Fully backed by the BMW Group, Fund III will focus on physical AI, agentic AI, industrial software, manufacturing technologies, supply chain technologies and advanced materials.
This is BMW saying the next car fight goes way beyond batteries and horsepower. It’s factory intelligence, supply chains, materials, and software agents running the industrial stack. Three hundred million dollars is a serious signal: automakers want to own the AI layer before someone else sells it back to them.
We’ve linked every story from today’s briefing in the show notes, so if one of these is worth a closer look, you can head there and read more. That’s Startup Fundraising for today. This is a Lantern Podcast.