| Topic | HORIZON-CL4-2027-SPACE-03-21 |
|---|---|
| Status | Forthcoming |
| Call | HORIZON-CL4-2027-03 — SPACE |
| Destination | Achieving open strategic autonomy in global space-based infrastructures, services, applications and data (2026-27) |
| Type of action | Research and Innovation Actions · lump sum |
| Opening | 9 March 2027 |
| Deadline | 2 September 2027 |
| Budget | EUR 3.5 million to EUR 3.92 million per project · 1 project expected · EUR 3.92 million in total |
| TRL at the end | TRL 6–7 |
| Part B page limit | 45 pages (standard application form; check your call) |
| Template | Work Programme 2026–2027 application form |
Expected outcomes
The topic does not say whether all outcomes must be addressed; treat them all as relevant. The topic says: “The strategic objective of this topic is to develop capabilities to ‘Act in Space’ through demonstrating in space a pilot mission by 2030 related to ISOS. The envisaged ISOS pilot mission shall provide the necessary seed components for a future service infrastructure, available to the European in-space ecosystem (including the EU assets), driving the generation of a new in-space economy,…”
- EO1 An in-space economy, building on innovative technologies and concepts for a sustainable infrastructure and value-adding services in space, e.g. plug-and-play spacecraft functionality introducing recycling/re-use of spacecraft modules/functionalities, and satellite upgrades and payload exchange for mission adaptivity.
- EO2 ISOS4I pilot mission preparation up to detailed mission and system detail design, and ground demonstrator, as well as promotion of the mission to the wider public.
- EO3 Consolidated and space-verified USI solution(s) for European space actors.
Expected impacts named in the destination
The wider, long-term effects the destination seeks. Your outcomes feed them; they are not project deliverables.
- EI1 Accessing Space, i.e. the ability to transport satellites, cargo, and humans into space; build and launch the required vehicles, including re-usable systems; and operate the related facilities and services.
- EI2 Using Space on Earth, i.e. the ability to provide space-based secure communication, navigation and Earth observation services and applications, including through the EU Space flagships Galileo, Copernicus and IRIS 2.
- EI3 Monitoring Space, i.e. the ability to detect, track and anticipate the trajectory of spacecraft, Near-Earth objects, and space debris during their full lifetime; to share data with relevant stakeholders; and to provide solutions for safe international space traffic management. It also includes the tracking and anticipation of other impacts on the space environment, such as Space weather events.
- EI4 Acting in Space, i.e. the ability to inspect, rendezvous and dock, grasp, repair, refuel, reconfigure, build, assemble and disassemble, reuse/recycle, relocate, remove and transport operational, non-operational, and other objects in space, including platforms or larger structures.
- EI5 Exploring Space, i.e. the ability to conduct high profile space exploration activities, perform excellent science and exploit space data to increase our knowledge about the Universe and celestial bodies, with a view to their exploration for scientific and socio-economic benefits.
- EI6 Boosting Space, i.e. the ability to sustain the above strategic capabilities through fostering the competitiveness of the EU space sector; improving education and developing the required skills; accelerating the pace of innovation; supporting EU non-dependency on critical technologies; and strengthening international cooperation.
- EI7 Heading 1: Accessing Space.
- EI8 Heading 2: Acting in Space.
- EI9 Heading 3: Using Space on Earth related to telecommunications.
- EI10 Heading 4: Using Space on Earth related to Earth Observation.
- EI11 Heading 5: Using Space on Earth related to satellite navigation.
- EI12 Heading 6: Space sciences and exploration.
What evaluators will look for in this topic
Expected outcomes
- The topic does not say whether all outcomes must be addressed; treat them all as relevant.
- For each outcome (EO1 to EO3), name who will use or adopt your results (a specific group, not “industry” or “society”), how they get them, and the indicator that shows the change, with baseline, target and date.
- Use the topic's own words for each outcome, so the evaluator can tick it off.
What the scope asks for
Evaluators check the proposal against these sentences of the scope. Answer each one visibly, in the call's own words.
- “To tackle the above expected outcomes, the following R&I actions should be addressed in the shortest possible timeframe taking into account the provided technical annex:.”
- “Supporting the ISOS Pilot mission detailed mission and system design, demonstrating in an integrated ground test (TRL6) and a virtual testbed (System-of-Systems simulation) the interoperability of the developed mission components ground prototypes (i.e., Servicing, HOST, Logistic and satAPPs) with all applicable servicing interfaces and the baseline demonstration scenarios as defined in the technical annex (the applicable servicing interfaces…”
- “Proposals are expected to promote cooperation between different actors (industry, SMEs and research institutions) and consider opportunities to quickly turn technological innovation into commercial use.”
- “Proposals should clearly describe how previous and/or ongoing R&I of the mission components and any required additional technologies for the proposed ground test will be integrated and involve entities part of the key technology and service provider group, as necessary.”
- “Moreover, proposals should clearly identify the test facility/ies to be used for the ground demonstrator.”
- “Finally, proposals should build on the outcome of the CSA activities on (1) “Proposal for an as much as possible integrated ground demonstrator bringing together the different mission components at the end of their detailed design phase” and (2) “Proposal for USIs consolidation, i.e., selection of a single USI European solution or approach allowing compatibility with multiple solutions (required for the HC)”.”
- “Activities are expected to achieve TRL 6-7 by the end of the project.”
- “Proposals are expected to consider and contribute to a balanced provision of Member States’ and eligible Associated Countries’ expertise and capabilities to the overall ISOS pilot mission, to support a successful introduction of the strategic capacity ‘Act in Space’.”
- “The project selected from this topic will be a Linked Action and is expected to closely collaborate with those selected under topics HORIZON-CL4-2025-02-SPACE-21, 22, 23, 24 and ISOS Pilot Mission Coordination and Support Action, in order to ensure interoperability and the necessary and sufficient documentation and information sharing for the implementation of the Pilot Mission, to make economies of scale in sharing best practices, defining…”
- “In this topic, the integration of the gender dimension (sex and gender analysis) in research and innovation content should be addressed only if relevant in relation to the objectives of the research effort.”
Conditions that shape the proposal
- Part B, sections 1–3: 45 pages (standard application form). Text beyond the limit is not read; tables and figures count.
- Lump sum: the budget is fixed per work package and paid when each work package is completed. Every work package needs activities and deliverables an evaluator can verify, and the effort must match the money.
- TRL: the topic expects TRL 6–7 by the end of the project. State where you start and the evidence for it.
- Admissibility Conditions: Proposal page limit and layout: “The page limit of the application is 45 pages.”
- Other Eligible Conditions: “In order to achieve the expected outcomes, and safeguard the Union’s strategic assets, interests, autonomy, or security, participation is limited to legal entities established in Member States, Norway and Iceland. Proposals including entities established in countries outside the scope specified in the…”
- Other Eligible Conditions: “For the duly justified and exceptional reasons listed in the paragraph above, in order to guarantee the protection of the strategic interests of the Union and its Member States, entities established in an eligible country listed above, but which are directly or indirectly controlled by a non-eligible country or by a…”
- Other Eligible Conditions: “The following additional eligibility criteria apply: beneficiaries must include the beneficiaries of the ISOS Pilot Mission Coordination & Support Action, awarded under Other actions not subject to calls for proposals, from the Horizon Europe Cluster 4 Work Programme 2025, as commanded by the nature and objectives of…”
- Evaluation and award: Award criteria, scoring and thresholds: “The evaluation committee will be composed partially by representatives of EU institutions.”
Impact pathway and traps
- The scope expects pilots or demonstration. Name the sites, the partners who run them and what is measured there.
- The gender dimension is named in the topic. Show how sex and gender analysis enters the research content, not only team balance.
- Keep outputs, outcomes and impacts apart: what you deliver, what changes when others use it, and the long-term effect.
- For each destination impact you claim, show which of your outcomes feeds it. Destination impacts are long-term effects, not project deliverables.
- Name the barriers outside the project (regulation, markets, user behaviour) that could block uptake, and what you will do if they do.
- Section 2.3 (the summary canvas) is optional on this call; the old split into scientific, economic and societal impact is no longer required.
The scope, as published
To tackle the above expected outcomes, the following R&I actions should be addressed in the shortest possible timeframe taking into account the provided technical annex: Supporting the ISOS Pilot mission detailed mission and system design, demonstrating in an integrated ground test (TRL6) and a virtual testbed (System-of-Systems simulation) the interoperability of the developed mission components ground prototypes (i.e., Servicing, HOST, Logistic and satAPPs) with all applicable servicing interfaces and the baseline demonstration scenarios as defined in the technical annex (the applicable servicing interfaces should include the USI solutions to be further matured in this topic, as well as the refuelling interfaces to be further matured in topic HORIZON-CL4-2026-SPACE-03-86); Final maturation, verification and qualification (TRL7) of the consolidated USI solution(s) recommended by the ISOS Pilot Mission Coordination and Support Action, considering opportunities for IOD/V; Development of a ISOS4I promotion video and VR experience for dissemination purposes, showcasing the pilot mission concept with its baseline demonstration scenario and the evolution towards an in-space service infrastructure leading to manifold business opportunities as part of a wider in-space economy. Proposals are expected to promote cooperation between different actors (industry, SMEs and research institutions) and consider opportunities to quickly turn technological innovation into commercial use. Proposals should clearly describe how previous and/or ongoing R&I of the mission components and any required additional technologies for the proposed ground test will be integrated and involve entities part of the key technology and service provider group, as necessary. Moreover, proposals should clearly identify the test facility/ies to be used for the ground demonstrator. Finally, proposals should build on the outcome of the CSA activities on (1) “Proposal for an as much as possible integrated ground demonstrator bringing together the different mission components at the end of their detailed design phase” and (2) “Proposal for USIs consolidation, i.e., selection of a single USI European solution or approach allowing compatibility with multiple solutions (required for the HC)”. Activities are expected to achieve TRL 6-7 by the end of the project. The reference TRL definition is the ISO 16290:2013 applicable to the space sector. Proposals are expected to consider and contribute to a balanced provision of Member States’ and eligible Associated Countries’ expertise and capabilities to the overall ISOS pilot mission, to support a successful introduction of the strategic capacity ‘Act in Space’. The project selected from this topic will be a Linked Action and is expected to closely collaborate with those selected under topics HORIZON-CL4-2025-02-SPACE-21, 22, 23, 24 and ISOS Pilot Mission Coordination and Support Action, in order to ensure interoperability and the necessary and sufficient documentation and information sharing for the implementation of the Pilot Mission, to make economies of scale in sharing best practices, defining common processes for addressing the different challenges, ensuring efficient monitoring and review, organising dissemination and communication activities, etc. In this topic, the integration of the gender dimension (sex and gender analysis) in research and innovation content should be addressed only if relevant in relation to the objectives of the research effort.
Technology readiness, as published
Activities are expected to achieve TRL 6-7 by the end of the project – see General Annex B. Activities may start at any TRL. [delete second sentence only if really necessary] ISOS Pilot Mission Coordination and Support Action (HE CL4 Work Programme 2025) Space Policy Expert Group - sub-group on ISOS ISOS Pilot Mission Guidance Document
Other topics in HORIZON-CL4-2027-03
- HORIZON-CL4-2027-SPACE-03-12 — Digital solutions for autonomy for space transportation systems, design and…
- HORIZON-CL4-2027-SPACE-03-33 — Digital enablers and building blocks for collaborative Earth Observation and…
- HORIZON-CL4-2027-SPACE-03-34 — Preparing demonstration missions for collaborative Earth Observation and…
- HORIZON-CL4-2027-SPACE-03-71 — Quantum Space Gravimetry topic
Source and attribution
Topic text from the official topic page on the EU Funding & Tenders Portal, retrieved 19 October 2026. © European Union, reused under Commission Decision 2011/833/EU (CC BY 4.0). Changes: the expected outcomes and impacts are split into numbered statements, long passages are shortened, and the evaluator checklist is GrantWise's own commentary. Your call and the Work Programme always win; check them before you submit. GrantWise is independent and not affiliated with, endorsed by, or acting on behalf of the European Commission.