ReOrbit
Helsinki-based ReOrbit builds software-defined satellite buses and a sovereign satellite OS stack targeting defense, national-security, and critical-infrastructure operators.
Background
ReOrbit was founded in Helsinki in 2019 by Sethu Saveda Suvanam and has grown into one of Finland's most-capitalized space startups.
The company's pitch centers on displacing purpose-built, single-mission satellite hardware with a software-reconfigurable platform that lets operators update mission logic on orbit.
Its product line consists of three named systems: Gluon, a software-defined small satellite bus developed with SatixFy for the onboard processor; SILTA, a software-defined GEO communications platform; and UKKO, an Earth-observation and ISR platform.
Across all three, ReOrbit provides integrated satellite hardware, payload interfaces, and a sovereign operating-system layer that keeps command-and-control inside the customer's national infrastructure rather than on a shared commercial cloud.
ReOrbit goes to market primarily through direct government and institutional channels, positioning Gluon, SILTA, and UKKO as turn-key sovereign-communications and ISR solutions for NATO-aligned governments.
LinkedIn headcount is listed at 51–200 employees, making the company roughly mid-stage in staffing terms.
Financial footing
- YIC funding
- Sovereign satellite platform for Nordic/NATO customers
- Backers: Business Finland (YIC)
ReOrbit closed a €45 million Series A in September 2025, arranged by Springvest with participation from Varma, Elo, Icebreaker.vc, Inventure, Expansion VC, and 10x Founders. The company described it as the largest all-equity Series A ever closed in Finland and one of the largest European defense-space rounds of that year. Secondary startup databases report a conflicting figure of $60 million total raised across two rounds and a Series A of approximately $53 million; those figures are inconsistent with the company's own €45 million announcement and should be treated with caution.
Earlier-stage support came from Business Finland's Young Innovative Companies program. In March 2026, ReOrbit announced a €150 million contract with SLI, an aerospace asset-financing firm, for two software-defined GEO communications satellites, representing the largest disclosed backlog figure. No public valuation has been announced. The company remains privately held.
Major customers & contracts
ReOrbit's largest disclosed contract is a €150 million agreement signed in March 2026 with SLI, an aerospace asset-financing specialist, covering two next-generation software-defined GEO communications satellites built on the SILTA platform. One unnamed government customer has reportedly signed a full contract described in coverage as worth 'hundreds of millions,' with multiple additional memoranda of understanding signed with other governments; none of those sovereign customers has been publicly identified by name.
ReOrbit markets the UKKO ISR platform and SILTA communications platform explicitly to defense ministries and national-security agencies in Nordic and NATO-aligned countries. The European Space Agency has supported an in-orbit demonstration partnership with ReOrbit. No specific named defense ministry, military service branch, or intelligence agency has been publicly confirmed as a customer in available disclosures.
Leadership & contact surface
Leadership: Sethu Saveda Suvanam
Official site: https://reorbit.space
Competitive position
ReOrbit's five most direct competitors are Airbus Defence and Space, Thales Alenia Space, SES Government Solutions, Kongsberg Satellite Services, and Loft Orbital. Against Airbus and Thales Alenia, ReOrbit's edge is speed and software reconfigurability — both incumbents build purpose-designed GEO payloads on multi-year timelines, while ReOrbit pitches on-orbit software updates and faster integration cycles; its weakness is balance-sheet depth and decades of flight heritage those primes carry.
Against SES Government Solutions, ReOrbit offers full sovereign ground-segment control rather than a shared commercial network, a meaningful differentiator for NATO intelligence customers; the weakness is that SES already holds long-term sovereign contracts across Europe. Against Kongsberg Satellite Services, ReOrbit competes on vertical integration — it builds the bus, not just the ground segment. Against Loft Orbital, ReOrbit differentiates on the sovereign OS layer rather than hosted-payload commoditization. The overall market remains fragmented, with incumbents holding most contracted capacity but software-native entrants gaining ground on flexibility.
Battlefield relevance
No confirmed combat use to date.
Sources & verification
- https://www.reorbit.space
- https://www.findarticles.com/reorbit-raises-record-round-to-challenge-starlink/
- https://www.linkedin.com/company/reorbit
- https://www.linkedin.com/posts/satnow_softwaredefinedsatellite-silta-ukko-activity-7431752281320214528-uofE
- https://startupintros.com/orgs/reorbit
- https://thenextweb.com/news/finnish-startup-reorbit-launch-software-defined-satellite-esa
- https://assets.website-files.com/63dbcfd6b6eebb8dfd944608/64241f9db999f34afce9ef69_Gluon.pdf
- https://www.goodnewsfinland.com/en/articles/five-from-finland/2025/finland-space-economy/
- https://room.eu.com/article/finnish-start-up-reorbit-aims-to-revolutionise-space-industry
- https://www.reorbit.space/resources/articles/reorbit-announces-space-cloud-in-collaboration-with-google-cloud-to-unlock-new-orbital-data-economy
- https://spacenews.com/reorbit-signs-a-deal-with-satixfy-to-co-develop-the-on-board-processor-for-reorbits-highly-flexible-software-defined-satellite-gluon/
- https://satnews.com/2026/03/19/reorbit-secures-e150-million-contract-with-sli-for-next-generation-small-geo-satellites/
- https://smallsateurope.com/sponsor/reorbit/
- https://thehub.io/startups/reorbit
- https://www.reorbit.space/resources