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UK Startups and Innovation
22OCT

Greenjets raises £30m in its 21st year

3 min read
16:30UTC

Blossom Capital led a £30m Series A into Bedford's Greenjets on 21 July, with a NATO fund and the UK Government's own dual-use investor following.

TechnologyDeveloping
Key takeaway

A NATO fund and Britain's own dual-use investor now hold shares in a Bedford propulsion company.

Greenjets, a Bedford electric-propulsion company founded in 2005, raised a £30 million Series A on Tuesday 21 July led by Blossom Capital⁠1. The NATO Innovation Fund (the venture arm of the North Atlantic Alliance), the National Security Strategic Investment Fund (NSSIF), Tanglin Ventures and a family office followed.

Greenjets sells a patented ducted architecture, an electric fan enclosed in a shroud rather than an exposed propeller. The company claims up to 45% lower power draw and roughly two-thirds less noise than open propellers, although those figures are its own and unaudited. It already supplies airframe manufacturers and the drone market, and is exploring a large electric hovercraft in Norway⁠2.

Two things stand out. A company reaching Series A scale in its twenty-first year is a fair measure of how slowly British hardware compounds when your customers certify aircraft. And two of the new shareholders invest against security mandates rather than return targets.

NSSIF is the UK Government's own corporate venturing arm for dual-use defence and security technology, run jointly with the British Business Bank⁠3. Its published remit covers technology with both defence and commercial application, which describes a ducted electric fan sold into airframes and drones. In practice that puts two allied state-security investors on one British aerospace register, one of them domestic.

Compare the shape of that cap table with PhysicsX, which closed $300m in June led by Singapore's Temasek. That was foreign capital chasing growth, priced on the company's trajectory. Greenjets' foreign money arrives with a policy brief attached, and money of that kind is patient in a way a growth fund cannot be. For an airframe programme measured in certification cycles rather than quarters, the difference decides whether the company survives to its next round.

Deep Analysis

In plain English

Greenjets is a company in Bedford that has spent more than two decades working on electric engines that could replace jet fuel with batteries, first for smaller aircraft and now potentially for an 80-seat electric hovercraft in Norway. It raised £30m, and two unusual investors joined: the NATO Innovation Fund, which backs technology useful to NATO militaries, and the National Security Strategic Investment Fund, the UK Government's own investment arm for defence and security technology. Their presence signals that electric propulsion is seen as having military uses (quieter, harder to detect) as well as civilian ones (cheaper, cleaner short-haul transport).

Deep Analysis
Root Causes

Greenjets took 21 years to reach a Series A because electric-propulsion power density had to close roughly two-thirds of the gap to jet fuel's energy-per-kilogram before any aircraft-scale application became commercially viable; battery and motor chemistry, not company execution, set that timeline.

NSSIF and the NATO Innovation Fund both sit on this cap table because electric propulsion is dual-use by physics, not by design: a quieter, lower-heat-signature propulsion system serves a hovercraft ferry route and a low-observable military platform with the same underlying motor and battery architecture, which is precisely the profile these funds' mandates were built to capture.

What could happen next?
  • Meaning

    NSSIF's participation marks one of the fund's first electric-propulsion bets, extending its dual-use mandate beyond the drone and cyber sectors it has favoured to date.

  • Risk

    Electric aircraft propulsion has no established certification pathway at this scale in the UK or Norway, so regulatory delay, not engineering failure, is the more likely source of a multi-year slip.

First Reported In

Update #13 · Humanoid hit $1.35bn on a customer order

Greenjets· 31 Jul 2026
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Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Editorial standards.