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The passive de‑orbiting solution for a sustainable LEO.

Ultra-light inflatable drag sails that clear satellites from orbit at end of mission — no fuel, no thrusters, no mass penalty.

IDD OPERATION
Orbit / status
2,500satellites launched per year by 2031, on average
5 yrsstrict post-mission disposal window in LEO
20%of satellite mass lost to propulsion-based disposal
$1Tspace economy at stake by 2040
The problem

Orbit is filling up faster than it can clear itself.

01

Space junk stays for decades

Defunct satellites and spent rocket stages linger in low Earth orbit long after their missions end, threatening every operational spacecraft.

02

Collisions breed collisions

Each impact multiplies the debris field — the Kessler cascade — driving mission risk and insurance premiums steadily upward.

03

Compliance is now mandatory, and expensive

Operators face a strict five-year post-mission disposal window, yet propulsion-based disposal devours mass that should be earning revenue.

Example of debris orbiting Earth that increases collision risk.

Illustrative render of tracked satellites and debris objects in low Earth orbit SPACE DEBRIS
The solution

An inflatable drag sail that lets physics do the work.

Render of the SPACEO inflatable drag sail deployed on a satellite DRAG-SAIL · DEPLOYED CONFIGURATION

Passive by design

At end of mission the sail deploys, multiplying the satellite's cross-section. Residual atmospheric drag does the rest — pulling it down to safe disintegration on re-entry.

Ultra-light, bolt-on module

Integrates on any LEO satellite. No propellant, no thrusters, no operations after activation — and a near-zero mass penalty.

Reliable and astronomy-friendly

Rigidized beams keep the sail stable after deployment, while a low-emissivity membrane keeps skies dark and radar-quiet for ground-based astronomy.

Fire and forget. Once activated, de-orbiting is automatic — no ground segment, no fuel budget, no ongoing cost.

Business model

One product, two routes to revenue.

The same flight-qualified module serves both markets — new satellites before launch, and the thousands of defunct ones already in orbit.

Direct integration

Hardware sold directly to OEMs and constellation builders — installed before launch as the standard end-of-life kit on every satellite.

RECURRING HARDWARE SALES · CONSTELLATION VOLUME

In-orbit servicing

Our sail as the payload kit for servicing vehicles — attached to defunct satellites already in orbit, triggering immediate, automated de-orbit.

SERVICE MISSIONS · AGENCY ADR PROGRAMMES
Market

A $1 trillion wave with a regulatory tailwind.

$1T
annual space-economy revenue by 2040 — Citi, McKinsey, MS
−95%
drop in launch costs, unlocking new services from orbit
$424B
space economy in 2020 — already +70% vs. 2010
2,500
satellites per year by 2031 — each one needing disposal

Commercial LEO broadband

High-volume constellations facing the five-year rule — exactly where our low-cost, mass-market strategy is aimed.

In-orbit servicing missions

ESA and national debris-removal demonstrators, with our sail as the standard capture-and-de-orbit payload kit.

Competitive landscape

The lowest-cost seat in a market that must buy.

COMPLEXITY & COST → ↑ ACTIVE      ↓ PASSIVE
SPACEO drag sail
Electrodynamic tethers
De-orbit propulsion
ADR service vehicles

Existing de-orbit options span a wide range of TRLs, cost and business models — none matches a passive sail on mass and price.

  • Zero propellant, near-zero mass penalty
  • Fire-and-forget — no operations after activation
  • Bolt-on: integrates on any LEO platform
  • Dark-skies and radar-quiet by design
  • Lowest unit cost at constellation scale
Traction

Backed by the institutions that set the rules.

ESA BIC incubation
Incubated by the European Space Agency at the IPN Business Incubation Centre.
Portugal Ventures
Equity investment from Portugal's public venture-capital firm.
PRR Startup Voucher
National recovery-plan grant supporting early product development.
SWIFT — ESA ARTES
Leading the programme that takes our sail to in-orbit demonstration.
Flagship programme

Leading SWIFT — an ESA ARTES project to fly our sail

Spacecraft With Inflatable Flight Termination takes the inflatable drag device from concept to in-orbit demonstration, with SPACEO as prime contractor.

Where we are

Hardware in test, qualification in sight.

Q4 2026
System qualification begins — TRL 6
Design matured. Electronics under test and sail-deployment reliability campaign under way.
2028
IOD launch — flight heritage secured
SPACEO inflatable beam under mechanical deployment testing in the lab DEPLOYMENT RELIABILITY CAMPAIGN
Founding team

Two founders, 26 years of aerospace.

João Pedro Loureiro

Co-founder, CEO
  • Aerospace engineer & MBA — 18+ years building space products
  • Expert in metallic & composite structures for aerospace
  • European patent author · founder of the Air Cargo Challenge
  • HPS · CEiiA · Embraer · Tekever · Solar Impulse · Omni Group

Pedro Carneiro

Co-founder, CTO
  • Aeronautics engineer — 8 years, multiple merit scholarships
  • Specialist in sizing methods for inflatable space structures
  • Mission design & analysis · prototype design and test
  • European patent author · ex-Eptune Engineering · C-MAST
Get in touch

Let's clear the path to orbit.

Space is scaling. De-orbiting is now mandatory. We make it effortless.