Everyone's shrinking satellites — K2 raised half a billion to build giant ones and bolt AI onto them in orbit. Here's how we got here. AI money's been clustering around companies that can claim a foundational spot. Think model platforms, infrastructure, applied tooling, physical AI, plus the efficient and sovereign stuff. Just before this, Generalist AI was in talks at a possible three-billion-dollar valuation. Investors were already moving off the chatbot layer and toward robotics and physical AI. This is Startup Fundraising. Today, we've got a satellite bet, a Wiz payout recycled into two billion dollars of new funds, two cyber rounds, and a defense play. And for once, one of these decks has the receipts. Let's start in orbit. If this story matters to you — AI venture market concentration — hit follow. We'll be back on it soon. From The Next Web:
K2 raised a $500 million Series D at a $6.8 billion valuation, it said on Thursday. Kleiner Perkins and ICONIQ led the round, with Alphabet’s CapitalG, Lightspeed and ARK Invest among the backers. That more than doubles the $3 billion valuation it carried months ago. K2 has now raised over $1 billion, against more than $1 billion in signed contracts.
Finally. K2's raised over a billion, with over a billion in signed contracts. That's parity, dollar for dollar, and it's the first deck all week where the math actually closes. Enjoy it while it lasts, because here's the asterisk: a six-point-eight-billion-dollar valuation, up from three billion just months ago. The contracts didn't double in that time, so investors repriced something else. Right, that's the gap I can't let go. What happened operationally to more than double the price tag that fast? Gravitas went up in March, sure, but a two-tonne demo bird doesn't rerate you overnight. Kleiner and ICONIQ led it, with CapitalG and ARK riding along. And now the AI-platform concentration story goes orbital. The big checks have jumped from robots to satellites you can bolt compute onto. Their late-2028 Giga bird is basically a data center in orbit. And that's where the six-point-eight billion starts to make sense. The satellites come with real, boring contracts: SES, Golden Dome, a Space Force program of record. The valuation premium is pricing the compute-in-space sci-fi. So the Pentagon's funding the part that works, and public markets are paying for the part that doesn't exist yet. Familiar shape. From TechCrunch:
Index Ventures has raised $2 billion in fresh capital across three funds, the firm announced on Friday. The 30-year-old firm raised $400 million for its new seed-focused fund and $900 million for its venture fund. Index also added $700 million to a $1.5 billion growth fund raised in 2024, bringing its total available capital to $3.5 billion.
Two billion from Index, and everyone's going to lead with the Wiz payout — the seed check that rode all the way to a $32 billion Alphabet sale. But look at the split: $400 million for seed, $900 million for venture, and $700 million to top up the 2024 growth fund. They've got the whole stack covered. And there it is, right? Somebody got paid — Reuters pegs the Wiz stake near $3.8 billion — and the check goes straight back into new funds. The cycle starts again. Exactly. I've been wondering all week whether a Wiz-sized payout still opens LP wallets. This raise is framed around that payout. So, yeah. It does. And notice the discipline — $2 billion is under the $2.3 billion they raised two years ago. While half their peers are ballooning fund sizes, Index shrank. That's a GP who got paid on a real liquidity event, not some revenue-linked instrument, and doesn't feel the need to show off. Look at the seed fund. A firm sitting on Wiz-scale DPI just opened a fresh $400 million seed vehicle. They think they can catch the next one early. Problem is, the next ten years could look like Wiz — or like the names that never exit. This one's from The Times of Israel:
The funding round comes four months after Onyx emerged from stealth with $40 million in financing from investors. The latest round, which values the startup at about $640 million, was led by Bessemer Venture Partners. Other investors, including Cyberstarts, TCV, Conviction, FirstMark, Vintage Investment Partners, QuantumLight and G Squared also joined. To date, the startup has raised $153 million.
Onyx Security raised $113 million, led by Bessemer, at a valuation around $640 million. That's just four months after it came out of stealth with $40 million. Per the Times of Israel, it's raised $153 million total, and the price tag ballooned in four months. And listen to the pitch. The CEO says that a year from now, most actions inside the enterprise will be run by AI agents. That product roadmap reads like a horoscope. Here's the part I'd circle: Bessemer's leading this. Its name keeps showing up as the lead on the agent-control layer. They're stacking conviction fast in this exact subsector. The founding team's the credible part — ex-8200 intel and an ex-Nvidia AI architect. So they can build it. But is anyone buying agent governance yet when Bar Kogan himself admits agents were under one percent of actions in 2025? You're putting a $640 million price on a market that barely exists. The valuation's following the thesis, with revenue expected to catch up later. Bessemer's betting the curve bends their way before the discount disappears. Here's Pulse 2.0:
Act Security has emerged from stealth with $60 million in funding and a cloud security platform designed to reduce the access paths that allow attackers to move through corporate infrastructure. The company raised a $20 million seed round led by Team8 and Bessemer Venture Partners, with participation from Hetz Ventures and Claltech. It subsequently raised a $40 million Series A led by Notable Capital, with participation from Startpoint Capital and SVCI.
Second Israeli cyber launch in a single day, and Bessemer's the lead on both. Onyx, which we just hit, raised $113 million for AI-agent security. Now Act: $60 million for cloud access paths. Same firm, same week, one layer apart. So is Bessemer running one thesis, or hedging inside a single category? Onyx guards the agents; Act guards what those agents can reach. Together, Adam, those bets form a stack. Maybe. But the pitch — “we fix the access sprawl the incumbents left behind” — is getting awfully crowded, awfully fast. Everybody's selling the cleanup crew this week. The funding came in cleanly, though: a $20 million seed with Team8 and Bessemer, followed by a $40 million Series A led by Notable Capital. Two rounds stacked before the company ever left stealth. And these are the Medigate people — Claroty bought that for around $400 million. Investors are backing a team that's already taken one company to an exit. That I'll take. Here's The Next Web:
A London startup building the training grounds for Europe’s autonomous weapons has come out of stealth with $30mn. It is one of the region’s largest defence-tech seed rounds this year. Agon is not building the weapons themselves. It is building the infrastructure that trains them: a synthetic combat arena for AI-powered drones, missiles and uncrewed vehicles.
After a week of billion-dollar decks I couldn't get comfortable with, this is the one I said I wanted to sit with — and now it's real. It's out of stealth with $30 million, ex-Anduril founders, and named backers. The money came in two steps: a seven-million-dollar pre-seed, then a twenty-three-million-dollar seed. The Times broke it, and Lakestar's Klaus Hommels takes a board seat. Here's what I like: they leave the drone to somebody else and build the synthetic range where it takes hits before it ever flies. That's the unsexy plumbing, and it already has a customer — every European defence ministry that won't share data. One of the largest European defence-tech seeds this year, per The Next Web. Institutional investors have moved firmly into the autonomous-weapons training stack. They're leading the round, with a board seat attached. The CEO says we're in an AI arms race. Fine — skip the slogan. Classified combat data is scarce, and everybody's flocking to Ukraine to get it. That's the pitch I buy. Manufacture that data synthetically and you've solved a real bottleneck. If you track where startup capital's heading, check out The Data Center Daily, a briefing on AI compute, hyperscaler capex, the power grid, semiconductor supply, and shifting energy markets. Find it wherever you listen to podcasts.
We'll be watching K2's plan for a late-2028 launch of its 100-kilowatt “Giga” satellite, designed to carry massive on-orbit compute. If you'd like to dig deeper, you'll find links to every story in today's show notes. That's Startup Fundraising for today. This is a Lantern Podcast.