Key Takeaways
- Sateliot, a Barcelona-based 5G satellite IoT operator, has opened a €100 million Series C round to deploy a 16-satellite 5G constellation in low Earth orbit.
- The financing will be primarily equity, with an additional debt component and up to 50% public co-financing expected from Spanish and European institutions.
- This new round follows Sateliot’s €70 million Series B in 2025, aimed at building a 100-satellite 5G-IoT network for global device connectivity.
- The capital will accelerate commercial rollout of 3GPP-standard 5G NB-IoT services to cover remote and underserved regions worldwide.
Quick Recap
Spain’s Sateliot has formally launched a €100 million Series C funding round to accelerate the deployment of its 5G satellite constellation, according to an announcement highlighted by EU-Startups and Sateliot’s own channels.
The Barcelona-based company plans to use the fresh capital to orbit 16 additional satellites and speed up commercial execution of its 5G NB-IoT network for global IoT connectivity. The raise, unveiled with support from Spain’s Ministry for Digital Transformation, positions Sateliot as a flagship European player in space-based 5G infrastructure.
Funding to accelerate 5G satellite rollout
Sateliot’s new €100 million Series C is structured mainly as equity, with room for complementary debt, and the company expects to close the round by the summer. Management anticipates up to 50% of the total to be matched through public co-financing, reinforcing Spain and Europe’s push for digital sovereignty in critical connectivity infrastructure.
The funds will support deployment of a 16-satellite 5G NB-IoT constellation in low Earth orbit, designed to act as space-based cell towers that extend coverage for existing mobile operators using the 3GPP standard. The raise builds directly on Sateliot’s €70 million Series B completed in 2025, which was earmarked for a broader constellation of more than 100 satellites and secured backing from national and European investors.
Sateliot has already launched multiple test and early commercial satellites and partnered with manufacturers such as Open Cosmos to build and operate its nanosatellite fleet. By supporting standard NB-IoT devices without hardware changes, the network is targeting use cases in agriculture, logistics, energy, environmental monitoring, and critical infrastructure where terrestrial coverage is patchy or non-existent.
Why This Matters in the Satellite IoT Race?
Sateliot’s capital push comes as competition intensifies in satellite-based IoT and 5G non-terrestrial networks, a market expected to benefit from rising demand for resilient connectivity across industries. The company positions itself as the first operator to offer 5G-IoT connectivity directly from space using standard 3GPP protocols, differentiating it from proprietary systems that require custom terminals.
In Europe, the round would rank among the larger SpaceTech and orbital infrastructure financings of 2025–2026, underlining investor appetite for dual-use and strategic connectivity assets. Globally, Sateliot faces both giant constellations such as SpaceX’s Starlink and more focused IoT players like Swarm and Astrocast, all racing to prove sustainable unit economics in low Earth orbit.
However, Sateliot’s tighter focus on NB-IoT, its reliance on standard cellular hardware, and the prospect of substantial public match funding could improve its odds of scaling commercially in niches where cost and device simplicity matter most. The outcome of this Series C will be a key signal for the viability of mid-sized, standard-based satellite IoT constellations in an increasingly crowded sky.
Competitive landscape
Sateliot vs. peers
For this analysis, we compare Sateliot with two similarly focused satellite IoT players: Astrocast and OQ Technology, both targeting low-bandwidth, machine-type communications from low Earth orbit.
Satellite IoT feature comparison
| Feature/Metric | Sateliot (News Subject) | Competitor A: Astrocast | Competitor B: OQ Technology |
| Network focus | 5G NB-IoT, 3GPP-standard NTN for IoT devices | Proprietary low-bandwidth IoT messaging | 4G/5G NB-IoT NTN for IoT and M2M |
| Target constellation | 16 satellites in current phase, >100 in roadmap | Dozens of small IoT satellites in LEO | Planned global NB-IoT constellation in LEO |
| Pricing model | Telecom operator partnerships, wholesale IoT connectivity | Direct IoT service contracts, vertical solutions | Hybrid operator and enterprise contracts |
| Standards alignment | Full 3GPP 5G NB-IoT, works with standard modules | Non-3GPP proprietary satellite protocol | 3GPP-based NB-IoT NTN focus |
| Public funding access | Up to 50% match funding expected in Series C | Limited European public co-funding disclosed | Mix of private and public/ESA-linked support |
In standards-based satellite IoT, Sateliot and OQ Technology are better positioned than proprietary systems because they integrate directly with existing NB-IoT hardware and mobile operators. Sateliot appears to have an edge on near-term funding scale and public co-financing, while Astrocast retains advantages in early vertical deployments and a more established commercial footprint in certain industrial niches.
TechnoTrenz’s Takeaway
In my experience, seeing a mid-sized European space startup move from a €70 million Series B to a targeted €100 million Series C in barely a year is a strong vote of confidence in space-based 5G IoT. I think this is a big deal because Sateliot is not trying to outspend mega-constellations; instead, it is leaning on standards, public co-financing, and tight operator partnerships to build a capital-efficient network that plugs straight into existing devices.
For investors and enterprise users, that combination looks more bullish than speculative, as it lowers integration risk and improves visibility on real-world demand. I generally prefer this kind of disciplined, standards-driven approach in frontier infrastructure, and if Sateliot can close this round on the terms it is signaling, it will emerge as one of the more credible European contenders in satellite IoT rather than just another name in the constellation race.
