EU SST

What EU SST does

EU SST (EU Space Surveillance and Tracking) is a partnership of 19 EU Member States, operating as the Space Situational Awareness (SSA) component of the EU Space Programme under Regulation (EU) 2021/696. The partnership was established in 2015 and began service provision on 1 July 2016; EUSPA (European Union Agency for the Space Programme), headquartered in Prague, operates the EU SST Front Desk from its Galileo Security Monitoring Centre in Madrid. EU SST delivers three core services — Collision Avoidance, Re-entry Analysis, and Fragmentation Analysis — through the EU SST Service Provision Portal (portal.eusst.eu), which supports both web interface and API-based access for orbital data exchange.

The underlying technology is a federated network of 70+ ground- and space-based sensors (radars, telescopes, passive ranging systems, lasers) contributed by Member States and commercial providers, feeding a shared EU SST Database and (in development) a common European Catalogue of orbital parameters. Services use a Scaled Probability of Collision (Scaled PoC) method and a three-tier risk classification (HIE/WARNING/INFO) configurable per operator, with R&D underway in AI/Deep Learning for RSO detection, cislunar cataloguing, and advanced uncertainty modelling. The Communications & Coordination Platform enables operators to exchange information during conjunction events.

The business model is non-commercial: all three services are provided free of charge to any registered user — spacecraft owners and operators worldwide, EU Member States, EU institutions, and other public/private entities. Funding comes from EU Space Regulation and Horizon Europe grants (EUR 173 million signed in 2023 for 2023-2026) plus national contributions, with ~80% of total funding subcontracted to European industry and research institutions. Customer segments are horizontal — satellite operators (LEO/MEO/GEO), civil aviation and civil protection authorities, EU institutions, and national agencies — and there is no pricing tier, per-seat fee, or commercial sales channel. Distribution is exclusively via the Portal and EUSPA Front Desk, with strategic value anchored in EU strategic autonomy for space surveillance and tracking.

Name

EU SST

Legal name

SST Cooperation

Website

https://eusst.eu

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

1–10 employees

Short description

EU SST is a partnership of 19 EU Member States, operated via EUSPA, that provides free space surveillance and tracking services — collision avoidance, re-entry analysis, and fragmentation analysis — to satellite operators, EU institutions, and public entities worldwide, funded by EU grants.

Ownership category

akta.pro rank

Product category

Space Surveillance and Tracking (SST) Services

NAICS

Security Systems Services (except Locksmiths) (561621)

SIC

Measuring & Controlling Devices, Nec (3829)

akta.pro primary industry

Space-Based Defense Systems (SSA, Missile Warning, Protected SATCOM) (IMABAOAH)

akta.pro secondary industry

C4ISR Systems & Tactical Data Links (IMABAGAE)

Keywords

• Space surveillance tracking
• Collision avoidance services
• Re-entry analysis
• Fragmentation analysis
• Orbital debris monitoring

Headquarters

HQ city

Prague

HQ country

Czechia

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Operations, Infrastructure, Personnel, Supply Chain

Revenue model

1. Public SST Services (Free of Charge): EU SST services (Collision Avoidance, Re-entry Analysis, Fragmentation Analysis) are provided free of charge to all registered users including EU Member States, EU institutions, spacecraft owners and operators worldwide, and other public and private entities. The program is funded by EU Space and Horizon Europe programmes and national contributions from Member States.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels10 records

Core offering

EU SST provides three free-of-charge space surveillance and tracking services—Collision Avoidance, Re-entry Analysis, and Fragmentation Analysis—through a shared portal operated by EUSPA. Services are delivered using a federated network of over 70 ground- and space-based sensors across 19 EU Member States, supplemented by commercial sensor data, with operational interfaces configured per spacecraft operator's concept of operations.

Product overview

EU SST provides a unified space surveillance and tracking platform offering three core operational services: Collision Avoidance (CA), Re-entry Analysis (RE), and Fragmentation Analysis (FG). These services are delivered through the EU SST Portal, which provides web interface and API access. Supporting infrastructure includes the EU SST Database for data sharing among national Operations Centres, and the EU SST Catalogue of orbital parameters. Additional offerings include the Communication & Coordination Platform for CA users and detailed Service Portfolio documentation. All services are provided free of charge to registered users including EU Member States, spacecraft operators, and public/private entities worldwide.

Differentiator

Problem solved

Functional benefit

Products and services

• Collision Avoidance (CA) Service Provides risk assessment of collision between spacecraft or between spacecraft and space debris across LEO, MEO, and GEO; generates collision avoidance alerts using the Scaled PoC method and a three-tier risk classification (HIE/WARNING/INFO); supports Collision Avoidance Manoeuvre (CAM) recommendations and Large vs Large screening. For spacecraft owners and operators worldwide, plus EU Member States and EU institutions.
• Re-entry Analysis (RE) Service Provides risk assessment and information on uncontrolled re-entry of man-made space objects into Earth's atmosphere, including ground-track predictions and tailored information for aviation Flight Information Regions (FIRs) with Travelling Box delineation, typically for objects within 30 days of predicted re-entry. For civil aviation authorities (e.g., EUROCONTROL), civil protection agencies, EU institutions, and spacecraft operators.
• Fragmentation Analysis (FG) Service Detects and characterises in-orbit fragmentations, break-ups or collisions, providing short-, medium- and long-term analysis of objects involved in fragmentation events (on average ~5 fragmentation events detected per year). For spacecraft operators, EU Member States, and EU institutions.
• EU SST Service Provision Portal Web-based service provision portal operated by EUSPA that serves as the single interface for all EU SST services, including registration, service configuration, collision alerts, re-entry information, fragmentation data, and ephemerides upload. Provides web UI and API access for operators with orbit determination capabilities. For registered spacecraft operators, EU institutions, and Member States.

Quantifiable outcome

• Over 690 satellites protected from collision risk since 2016
• +6 more outcomes

Named customers11 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

AI capability7 records

Feature7 records

Partnerships

Seven partnerships are on record, tiered core, minor and major.

• 19 EU Member States (SST Partnership)coreStrategic or Co-development Partner · 12 April 2026The EU SST Partnership comprises 19 EU Member States: Austria (FFG), Belgium (BE MoD), Bulgaria (MIG), Czech Republic (MPO), Denmark (DALO), Finland (FMI), France (CNES), Germany (DLR), Greece (NOA), Italy (ASI), Latvia (IZM), Lithuania (IAL), Luxembourg (MECO), Netherlands (EZ), Poland (POLSA), Portugal (PT MoD), Romania (ROSA), Spain (AEE), Sweden (SNSA). Member States network their national assets across sensor, processing, and service functions. Four new members (Belgium, Bulgaria, Lithuania, Luxembourg) joined in April 2026, expanding from the original 15.
• European Union Industry and Start-ups Forum on Space Traffic Management (EUISF/EISF)minorStrategic or Co-development Partner · 30 September 2024EU SST co-organises the European Union Industry and Start-ups Forum on STM with the European Commission (DG DEFIS). The forum fosters innovation and competitiveness of the SSA commercial sector. The inaugural event was held on 26 April 2022 in Brussels. The forum serves as a transparent mechanism for dialogue between EU SST, policy-makers, and European industry and start-ups.
• Commercial Sensor Providers (6Roads, Aldoria, Arianegroup, Deimos, GMV, Safran, Sybilla)majorTechnology or Integration · 1 September 2024Seven commercial SSA companies (6Roads, Aldoria, Arianegroup, Deimos, GMV, Safran Data Systems, Sybilla Technologies) supply commercial sensor data to EU SST through a public procurement procedure (EUR 13.2 million maximum). Their sensors (radars, optical, passive telemetry, laser) complement national sensors. More companies are expected to join following a new call launched in early 2025.
• EUSPA (European Union Agency for the Space Programme)coreStrategic or Co-development Partner · 11 November 2022EUSPA acts as the EU SST Front Desk, managing the SST Portal and providing user support, coordination, engagement, service performance monitoring, and communication. The EU SST Front Desk transitioned from SatCen to EUSPA on 1 July 2023, with premises at EUSPA's Galileo Security Monitoring Centre (GSMC) in Madrid, Spain. EUSPA coordinates between the SST Partnership and users, performing the Service Provision function.
• NOAA's Office of Space Commerce (OSC)coreStrategic or Co-development Partner · 5 October 2022EU SST and NOAA's OSC are collaborating on a study to demonstrate the benefits of fusing SSA observational data (angles, range, range rate) to better estimate satellite orbits for collision avoidance. This joint technical demonstration involves sharing SSA observational data collected on several satellites spanning LEO to GEO. The study assesses data interoperability between EU and US SSA systems.
• Net Zero Space InitiativeminorStrategic or Co-development Partner · 12 November 2021EU SST signed the Net Zero Space Declaration, joining an international group of public and private organisations committed to promoting sustainable space activities. The initiative calls for a global commitment to sustainable use of outer space by 2030 and is supported by UNOOSA.
• European Space Agency (ESA)minorStrategic or Co-development Partner · 1 January 2021While ESA is not formally part of EU SST, Member States of the Partnership are also ESA members, creating natural links. EU SST supports ESA missions such as the Aeolus assisted re-entry (July 2023) and monitors ESA satellites for collision avoidance. EU SST contributes to ESA's space safety objectives.

Scale indicators10 records

Recent moves11 records

Expansion highlights6 records

Others

• EUSPA (European Union Agency for the Space Programme): Hosts the EU SST Front Desk since July 2023 and operates the Service Provision Portal. Directly comparable as the operational interface for EU SST services and the managing EU agency for the Space Programme.

Emerging players

• ExoAnalytic Solutions: Commercial SSA provider with a global network of optical telescopes tracking GEO and MEO objects. Comparable to EU SST in offering high-priority tasking, tracking and custody of resident space objects for commercial and government customers.
• Astroscale: Space debris removal and in-orbit servicing company. Thematically comparable to EU SST's fragmentation analysis and re-entry services in addressing orbital debris, though operating in the active-removal adjacent market rather than tracking.
• LeoLabs: Commercial SSA provider operating a global network of ground-based phased-array radars for LEO tracking. Directly comparable to EU SST on collision avoidance data products for commercial satellite operators, but with venture-backed agility and commercial pricing.

Direct peers

• GMV: European space services company supplying commercial sensor data and SST processing services to EU SST while also competing in commercial SST and Space Traffic Management software. Directly comparable in SST service delivery and data products.
• Aldoria (formerly Share My Space): European commercial SSA company that supplies optical sensor data into EU SST (EUR 13.2M procurement) and also sells SSA services directly to operators. Closely comparable to EU SST as a direct European competitor/supplier in SST data products.
• Safran Data Systems: Provides sensors (radar, telemetry, laser ranging) and commercial data into EU SST under the EUR 13.2M procurement. Comparable as a sensor and SST data provider with overlapping European customer base.

Broad incumbents

• Airbus Defence and Space: European aerospace prime that is both a user of EU SST services and operates its own SSA capabilities and OneWeb constellation. Comparable as a major European player with overlapping SSA and space-traffic interests.
• European Space Agency (ESA) Space Safety Programme: Runs complementary European space safety initiatives (e.g., collision avoidance for ESA missions, Aeolus assisted re-entry supported by EU SST). Comparable as a publicly funded European SSA stakeholder with overlapping mission scope and customer base.
• US Space Force 18th Space Defense Squadron (formerly 18 SDS): Operates the US Space Surveillance Network and produces the CDMs that EU SST's portal distributes. It is the primary global counterpart for space surveillance and tracking data, and the principal US source EU SST's independent European data aims to complement.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/eu_sst
• YouTubeyoutube.com/eusst
• LinkedInlinkedin.com/company/eu-sst

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about EU SST