$40m · Series A · Space · London, UK
British aerospace technology company Greenjets has raised a $40m Series A led by Blossom Capital. The company announcement says the NATO Innovation Fund and the UK's National Security Strategic Investment Fund participated, alongside existing investors Tanglin Ventures and NSFO Family Office. Greenjets will use the capital to scale production, develop its propulsion, aircraft and launch portfolio, and expand work with international partners and customers.
Propulsion is the shared constraint
Greenjets develops propulsion architectures ranging from electric ducted fans to geared turbofan engines, alongside aircraft platforms and launch technologies. The company says one proprietary technology stack supports those product lines, allowing engineering and manufacturing work to be reused across civil and defence applications rather than treating every aircraft as a separate engine programme.
That reuse is the commercial mechanism behind the round. Aircraft and drone makers can buy propulsion and integration capability without building an engine team from scratch, while Greenjets can spread core design, supply-chain and manufacturing investment across several platforms. NATO Innovation Fund partner Patrick Schneider-Sikorsky framed propulsion as the constraint that determines whether an interceptor can close on a fast target, arguing that Greenjets improves performance at both engine and airframe level for unmanned-aircraft and counter-drone companies. That is an investor thesis, not independent proof of performance.
The most immediate validation route is a government programme. Days before the funding announcement, the UK Ministry of Defence selected Greenjets, Frankenburg Technologies and Cambridge Aerospace to develop and trial low-cost drone interceptors under LCADE. Greenjets says its interceptor is due to enter demonstration trials later in 2026. Selection and planned trials show a relevant customer pathway, but do not mean the system has completed trials or entered production.
Series A capital moves the test to manufacturing
Greenjets reports that it expanded its UK facilities from 12,000 to nearly 70,000 square feet over the preceding year and plans to grow from 160 employees to more than 250. The company also says the financing supports a transition from development to production and delivery of thousands of systems over the following 12 months. Those are forward-looking company targets.
The execution challenge is therefore less abstract than proving another propulsion concept. Greenjets must turn a broad technology portfolio into repeatable hardware, secure components across a sovereign supply chain and deliver systems that meet different aircraft and defence-programme requirements. A shared stack can shorten development only if manufacturing quality, certification and integration remain consistent as output rises. The Series A gives Greenjets capacity to test that model across UK, NATO and German defence programmes while expanding beyond its UK and German operations.
Related reading
Skylance’s counter-drone interceptor examines the same cost-versus-performance problem from the effector side, including the steps between component tests and series production.
