$70m · Series C · Semiconductors · Renens, Switzerland
Renens-based SWISSto12 has closed a $70m Series C to expand manufacturing and integration capacity for its satellite payloads and compact geostationary platforms. The company announcement says the round follows $140m of revenue in 2025, more than $500m of contracted orders and a 110% compound annual growth rate since 2022. Investors were not disclosed.
Two product lines share one manufacturing base
SWISSto12 sells HummingLink payloads, antennas and radio-frequency components that can be hosted on different spacecraft, alongside HummingSat, its compact geostationary satellite platform. Both product lines use the company’s additive-manufacturing and radio-frequency design capabilities. More than 2,000 HummingLink products are already deployed in orbit, while seven HummingSat contracts have been signed with operators including SES and Viasat.
The commercial mechanism is industrial reuse. Three-dimensional printing can reduce component mass, part counts and manufacturing complexity while allowing radio-frequency structures that are difficult to produce conventionally. Sharing engineering, testing and production capacity across payloads and complete satellites can improve utilisation, but only if programmes remain standard enough to avoid becoming a collection of bespoke aerospace projects.
Backlog has to become delivery cadence
The company has expanded its Renens production site with a new cleanroom for end-to-end HummingSat assembly. The Series C finances a manufacturing challenge rather than a market-discovery exercise: SWISSto12 already has contracts, but must turn those orders into reliable payload and satellite deliveries across commercial and sovereign customers.
That raises the importance of supplier control, testing throughput and on-time integration. HummingSat’s compact design and shared production methods can shorten cycles, yet each successful launch and in-orbit deployment is still the evidence customers need. The round’s clearest milestone will be a repeatable cadence that converts the reported backlog without eroding margins through programme-specific work.
