Stoke Space raised $1B for a fully reusable rocket that has not flown once

Stoke Space raised $1B in a Series E co-led by Point72 Ventures and Spark Capital, with General Innovation, Glade Brook Capital, U.S. Innovation Technology, Washington Harbour Partners, Woven Capital and Y Combinator participating. Total funding reaches $2.3B. The money funds a first orbital launch of Nova Pathfinder — 3 tonnes to low Earth orbit, targeted for early 2027 — expands production and launch capacity, and accelerates Nova Block 2, a larger vehicle carrying 15 tonnes to LEO in a 5-metre fairing, aimed at 2029. Stoke's design goal is full reusability of both stages, including a regeneratively cooled upper stage.

Why it matters

The upper stage is the whole bet. Falcon 9 recovers its booster and throws away everything above it, and that discarded second stage is the largest remaining cost in the most successful reusable rocket ever built — the same programme that has flown one booster 37 times still expends a new upper stage every flight. Starship is meant to solve it and has so far managed to fish one ship out of the Indian Ocean. Stoke has been designing for a reusable second stage from the start, with an actively cooled heat shield that doubles as the engine's regenerative circuit. If it works it is a genuinely different vehicle. If it does not, the company has no fallback product.

$2.3B before a first flight is the number that should register. It is not unprecedented — Relativity and Blue Origin both raised heavily pre-orbit — but it prices in an architecture nobody has demonstrated, against a competitor that already flies. What the round buys is time: enough to fly Pathfinder, fail, understand it, and fly again, which is the loop Isar Aerospace just completed to reach orbit on its second attempt. Capital that survives a first failure is worth more here than capital that assumes success.

We flagged this raise as pending in August and held it out of the tracker until it closed. It is now recorded as in-progress, which is what an unflown rocket is regardless of its bank balance.

What to watch

Whether Nova Pathfinder flies in early 2027 or slips, whether the upper stage is recovered on any flight, and whether Block 2 stays on 2029 as Pathfinder's results come in.