Caelum Space Leasing Limited applies proven aviation finance structures to the space economy. We provide sale-leaseback facilities and finance leases for satellites and ground stations — creating asset-backed, yield-generating exposure to the fastest-growing asset class of the next decade.
For the first time, satellites and ground infrastructure can be financed the way aircraft are. Four structural changes have arrived together — each one necessary, none of them sufficient on its own.
Cost to deliver mass to low Earth orbit has fallen from roughly $54,500 per kilogram in the Space Shuttle era to about $1,500 on a reusable Falcon 9 — close to a 97% collapse. Starship, in active flight test, promises an order-of-magnitude leap in payload capacity and a further unit-cost reduction. Asset classes that were uneconomic become routine.
Eutelsat Quantum, Airbus OneSat and Thales Alenia Space INSPIRE can be reconfigured in orbit — frequency, beam pattern, coverage area, even the customer. Emerging in-orbit refuelling and life-extension services turn spacecraft from depreciating hardware into maintainable infrastructure. Caelum underwrites to a conservative zero-residual base case; reconfigurability is the recovery story, not the upside. In an event of default, a software-defined platform can be re-leased to a different operator on a different mission — the asset-class equivalent of repossessing an aircraft and placing it with another airline. Recourse, not residual.
Over 75% of the space economy is now commercially driven — diversified revenue from telecoms, earth observation, IoT and navigation services, exactly the contracted cash flows lenders require. What has been missing is audited disclosure. A SpaceX or Starlink IPO triggers continuous, audited reporting on launch costs, unit economics, fleet performance and offtake margins — the comparable data institutional capital needs to underwrite the asset class at scale. The information threshold is about to be crossed.
The European Union’s €10.6 billion IRIS² programme — €6.5 billion of public funding alongside €4.1 billion of private capital deployed through the SpaceRISE consortium — is building its sovereign multi-orbit constellation, with material adjacent ground-segment investment required to operate it. Combined with national defence telecoms procurement across France, Germany and Italy, this creates a decade of long-dated, investment-grade offtake that did not exist five years ago. In parallel, the proposed EU Space Act and evolving property-rights regimes are building the legal infrastructure for asset registration and cross-border enforcement — mirroring the role the Cape Town Convention played in aviation.
Over 50% of the world’s commercial aircraft fleet is leased. The same capital structures that enabled aviation’s growth — sale-leasebacks, finance leases, and portfolio-level facilities — are now being applied to space infrastructure.
Caelum is the bridge between institutional capital and commercial space operators. We acquire or finance satellites and ground stations, lease them to operators on long-term contracts, and generate predictable, asset-backed cash flows for our capital partners.
Our structures are familiar to any institutional investor or lender with exposure to aviation, infrastructure, or transportation finance. The asset class is new. The financial engineering is not.
Answers to the questions institutional capital asks first. The package is built from aviation-finance fundamentals, adapted for the operational reality of space.
Lease documentation grants the lessor continuous read-access to satellite telemetry — orbit, health, power, payload utilisation, anomaly logs. Underperformance is visible in days, not quarters. The same principle applies to ground-segment assets, with SCADA and uptime data reported under the lease. Early warning, not post-mortem.
On an event of default, the lessor has contractual step-in rights to the command and control chain. Where the operator runs primary TT&C, the lease requires backup command authority through an independent ground network (Caelum’s network partners include RBC Signals and independent European ground-station operators). The operator cannot continue to use the asset without the lessor’s cooperation.
Launch risk, in-orbit operations, third-party liability and total-loss cover, with the lessor as loss payee. The space insurance market is mature and consolidated — London, Munich, Zurich — and underwrites to standards familiar to any aviation lender.
Contracted cash flows from the operator’s end-customers — government agencies, telecoms, enterprises — are assigned directly to the SPV. This ring-fences the offtake from operator credit and survives operator insolvency where the service obligation can be transferred.
Operator obligations, maintenance standards, performance thresholds, and event-of-default triggers mirror aircraft lease covenants — minimum revenue coverage, cross-default with material operator debt, technical performance floors, insurance maintenance. Breach gives the lessor early remedies, not just terminal ones.
ITU filings and national licences are held by the operator and are not freely transferable. The lease structures this realistically: the asset is re-deployable to another licensed operator on default, and licence assignment is pre-negotiated with the relevant regulator wherever the jurisdiction permits. For software-defined platforms, mission change post-default is a design feature.
Structured through Irish S.110 and EU-domiciled SPVs with a common-law legal framework, extensive treaty network, and courts experienced in asset-finance disputes. As the proposed EU Space Act and the Berlin Space Protocol mature, cross-border enforcement of space-asset security interests becomes progressively stronger — Cape Town for satellites.
Asset-backed, yield-generating instruments built on proven financial engineering.
An operator already has satellites in orbit generating revenue under existing customer contracts. We acquire the in-service asset and lease it back — unlocking the capital tied up in the fleet while the operator continues to earn from established revenue streams. Investors benefit from proven cash flows and a fully operational asset with a track record.
A satellite manufacturer has a confirmed order with an operator but the operator needs financing. We acquire the asset on delivery and lease it back to the operator on a long-term contract — the manufacturer gets paid, the operator preserves capital, and investors receive contracted, asset-backed returns from day one.
For institutional investors and lenders seeking scale, we structure portfolio-level facilities across multiple assets and operators — diversifying risk while maintaining asset-backed security across a range of transaction types.
We welcome conversations with institutional investors, lenders, family offices, and strategic partners exploring asset-backed exposure to the space economy.
Market figures are stated in their published currency (USD). Figures as of Q2 2025 unless noted; accessed 29/06/2026.