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Guidance

ARTES: What You Need to Know

Updated 1 April 2026

1. Overview

The Advanced Research in Telecommunication Systems (ARTES) is the European Space Agency’s(ESA)flagshipfor satellite communications. It supports the development ofnew technologies, services and applications across the space,groundand network segments, helping UK companies bring innovative satcom solutions to market.

For the UK, ARTES is a strategic mechanism to drive growth in space-based telecoms, strengthen national capabilities, and secure high-value industrial opportunities. It supports UK priorities such as integration of satellite systems with terrestrial networks (including 5G and beyond), enabling resilient connectivity for remote communities, and fostering partnerships that attract inward investment. UK participation in ARTES ensures our industryremainsat the forefront of emerging markets like LEO constellations, optical communications, and secure connectivity, while contributing to wider Europeanobjectives.

The UK is a major investor in ARTESand subscribed£141.4m at the most recent ESA Council of Ministers.

Detailed guidance, assessmentcriteriaand eligibility will be released as part of each call for proposals.All competitions (open and closed) will be found here -Apply for funding: space-related R&D, innovation and education - ǸԹ

The ARTES programme is split into further sub-programme linesby ESA, each with their own focus:

  1. Early‑stagestudies:Future Preparation(

  2. Product and service development:Industrial Competitiveness(

  3. Strategic and industrial partnerships:Partnership Projects (

  4. Strategic Programme Lines: Space for 5G/6G(,ScyLight(and 4S(.

For all programme lines except Future Preparation, applicants mustdemonstratenationaldelegatesupport prior to applying to ESA.This is called ‘National Delegate support’ and the UK delegates its‘delegate support’for theARTES programmeto the UK Space Agency Satellite Communications team.

This page explains how UK organisations can engage with ARTES, how to seek UK National Delegate support, and where to find current funding opportunities.

2. ARTESFunding in the UK

The UK Space Agencyallocatesits funding through a variety ofARTESmechanismsto ensure it provides the best return on investment for the UK.These include industry-led calls for proposals and ESA-initiated InvitationstoTender;each approach has their own process.

a. Industry-led calls for proposal

The UKallocatesmost ofitsfunding through industry-led calls for proposalsensuring transparent access for industry and alignment with UK Space Agency’s commitment to running open,fairand strategically‑driven competitions.Successful activities may be delivered throughseveralESAARTES programme linesincludingIndustrialCompetitiveness,Partnership Projects,Space for 5G/6G,ScyLightand 4S. The decision on which programme line the activity will be delivered through will be made by the UK Space Agency in conjunction with ESA and the applicant.

For allindustry-ledactivities, applicants mustdemonstratenational support prior to applying to ESA.For an activity to be considered by ESA through an industry-led proposal, they must be able toshowcasethat they have support of their national delegate and ESA will reject an application if the support of the national delegate has not been shown with yourinitialapplication.

All industry-led proposals require a compelling element of match-funding as part of their proposal and must be led by a commercial entity (Universities and RTOs are unable to prime an activity).

ESA eligibility on match funding states companies can apply for up to 80% funding for programmes,whereasin the UK two funding limits are available depending on the size of the company applying:

  1. For all large or non-SME companies, including companies who are wholly owned by large companies or groups of companies, or for SMEs undertaking very high-value programmes – up to 50%.
  2. For all other SME companies and activities – up to 75%.
  3. For Universities, Research Institutes, and Public Sector Entities whose work as subcontractor is requested, justified, and supervised by the Industry consortium, and provided they do not retain any commercial (i.e. financial) interest in the future exploitation of the final product or service, and their funding does not exceed 30% of the total allowable cost - up to 100%.

For Universities and Research Institutespursuant tothepreviousparagraph, which have a demonstrated commercial interest in the future exploitation of the final product or service - up to 75%.

However, all matched funding decisionsremainat the discretion of the UK Space Agency and rates will be applied to individual organisations relative to their individual projects.

For an activity to be considered by the European Space Agency through an industry-led proposal, they must be able toshowcasethat they have support of theirnationaldelegate.

The UK Space Agency runs competitions toindicatewhich activities have provisionalnational delegate supportat regularintervals throughout the year across threecall-types.

  • ARTES General Call -These are general calls fordeveloping new satellite communications technologies,systemsor services across any part of the telecoms value chain. Technology Readiness Levels are expected to be at least 3 at the beginning of a project.

  • ARTES Thematic Call– These arefocussedcalls for proposals on specific thematic areas.Previousexamplesinclude:Ground Station Innovation, AI forSatComand Aerial Connectivity (Drones andHigh-AltitudePsuedoSatellites)Technology Readiness Levels are expected to be at least 3 at the beginning of a project.

  • C-LEO ARTES Call -These are focussed calls for proposals delivered as part of the Connectivity in Low-Earth Orbit programme. Further information can be found here -C-LEO Programme - ǸԹTechnology Readiness Levels are expected to be at least 4 at the beginning of a project.

Detailed guidance, assessmentcriteriaand eligibility will be released as part of each call for proposals.All competitions (open and closed) will be found here -Apply for funding: space-related R&D, innovation and education - ǸԹ

b. ESA-initiated InvitationstoTender

ESA-initiated InvitationstoTender are up to 100% funded activities focussed on lowtechnology readiness levelsdevelopment activitieswhere industry is less likely to take risks on long‑horizon, foundational capabilities.Proposals may be led by anyeligible organisation (UKCompany,Academia or ResearchandTechnologyOrganisation).

ESA-Initiated InvitationstoTenderare activitiesproposedby ESAthrougha yearly work planwhich is released on ESA-STAR. ESA-STAR is ESA’s procurementplatform.Further information on the registration process can be found here:.

For Advanced Technology, Space for 5G/6G,ScyLightand 4S, the UK Space Agency pre-selectsa number ofITTs which are to be supported by the UK National Delegateeach year. The list of supported activitiesand application guidancecan be found here –UK National Delegate support for the “Advanced Technology” Call - ǸԹ

The UK National Delegate will not support proposals for any activities that are not on the list as a prime contractor or as a subcontractor. An invitation from the European Space Agency to bid for the tender will not be successful withoutnational delegate support.

You should check thelist of supported activities before beginning any work on a proposal to ensure it is supported by the UK National Delegate.

For Future Preparation,all activities aredelivered through open competition between all ESA Member States.Nonationaldelegate supported isrequiredfor theseactivities and opportunities can be found on ESA-STAR. If you are successful in an application, please do let the UK Space Agency knowvia email.

c. Contract Change Notice Support

In some cases, changes in understanding may support adjustment ofaninitialproject, if these would affect the output and scope of the project a Contract Change Notice (CCN) is needed.These also need to be supported by National Delegates.CCNs will be subject to the same scrutiny by the National Delegate as theinitialapplication.Guidance on CCNs can be found here –

d. Further Information

If you would like any further information, or have any questions or feedback about this guidance, please contact the team attelecoms@ukspaceagency.gov.ukor.

The UK Space Agency runsa monthly information session which you can book on to find out more about the programmesthe satellite communication teamdelivers.

The UK Space Agencyalso runsmonthly industry days where you can request a short in person meeting witha member of the team. To request a meeting please use this link -

For queries on ARTES opportunitiesorNational Delegate supportthat is not covered by the guidance above please email:telecoms@ukspaceagency.gov.uk

Please note that during competition windows we are unable to provide feedback on the content of any proposal but will be able to provide responses related to processes.