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European Innovation Council and SMEs Executive Agency (EISMEA)

Interregional Innovation Investments (I3) Instrument

Interregional
Who is it for?
SMEs, research institutions, clusters & public authorities from EU regions working on shared smart specialisation, strengthening regional innovation ecosystems and developing value chains.
Innovation
What is for?
We support testing, piloting, validation, and market replication of innovations. Projects focusing on digital and green transitions, smart manufacturing, and strategic areas bringing innovation close to market.
Investments
What can you get?
Financial and advisory support for joint innovation projects, moving from ideas to implementation. Includes direct investments in SMEs, capacity-building, and funding.

Work Programme 2025-2027 adopted

What is the I3 Instrument

The Interregional Innovation Investments (I3) Instrument, under the European Regional and Development Fund (ERDF), supports interregional innovation projects in their scale-up and commercialisation phases. It helps overcome regulatory and market barriers, bringing projects to investment level.

Through Smart Specialisation and interregional collaboration, I3 Instrument strengthens regional ecosystems, fosters sustainable investment connections, and accelerates market uptake of research results.

  • Budget
    • over  €490 million available in the 2021-2027 programming period 
    • up to €10 million per project 
    • 70 % of EU contribution for all beneficiaries and cost categories 
    • 100 % of EU contribution of financial support to third parties  
  • Investment project requirements
    • minimum 3- 5 partners from different Member States and regional ecosystems
    • close to market projects (TRL 6-9)
    • innovation and impact oriented investments
  • Programme structure
    • Strand 1 supports consortia from regions with shared smart specialisation areas, ready to invest in interregional innovation projects.
    • Strand 2a funds value chain development in less developed regions, integrating them into EU value chains.
    • Strand 2b strengthens regional innovation ecosystems, building capacity for interregional business cases.
  • I3 Instrument under the ERDF

    ERDF funds interregional innovation projects (TRL 6-9) to reshape EU value chains and bring innovations to market.

    It supports investments under shared smart specialisation (S3) in:

    • Green transition
    • Digital transition
    • Smart manufacturing

     

I3 Instrument
  • General publications
  • 23 March 2023
I3 Instrument factsheet

Learn more about the three dimensions of the Interregional Innovation InvestmentsInstrument:  what we are looking for & what is is is there for you. 

2025 calls

For 2025, following calls are planned. (More information will follow after the Work Programme 2025 - 2027 adoption. Dates are indicative). 

  1. 22 May 2025
    Investment Calls: Strand 1 & 2a

    closing 13 November 2025

  2. 23 October 2025
    Final Capacity Building Call Cap2b

    19 March 2026

Get support

Access the I3 Instrument Support Facility for guidance on building consortia, sharing knowledge, and aligning with EU and regional priorities. Explore the FAQs, Info Day recordings, and communication toolkit for guidance on funding, collaboration, and outreach.

I3 Instrument Support Facility

Empowering regional and national innovation stakeholders to build robust interregional innovation ecosystems, reinforcing the objectives of the I3 Instrument.

  • Frequently asked questions

    For detailed guidance on eligibility, application procedures, and funding rules, consult the FAQs on the Funding and Tenders Portal.

    Go to FAQs

  • Recordings & presentations

    Access recordings and presentations from I3 Instrument Info Days: detailed guidance, and practical tips to prepare a strong proposal.

    Go to recordings

  • Communication for funded projects

    Effectively promote your actions and results. Plan, tailor your messaging and learn about your obligations as a EU grant recipient.

    Go to guidelines

Funded projects

  • 224 million
    committed

    by the end of Q1 2025, to project holders under the I3 Instrument 

  • 53
    funded projects

    including both investments and capacity building projects
     

  • 35
    investment projects

    at least 70% of the funding directly allocated to companies and SMEs

  • 18
    capacity building projects

    ecosystem growth, investment scouting, networking & benchmarking

Regional Innovation Valleys

The Regional Innovation Valleys (RIVs) (RIVs) initiative, part of the New European Innovation Agenda,connects regions across the EU, including those with lower innovation performance, by leveraging strategic regional strengths in line with smart specialisation strategies and EU priorities.

The European Commission allocated EUR 122 million from Horizon Europe (European Innovation Ecosystems) and the European Regional Development Fund (I3 Instrument).

In 2023, EISMEA received 57 proposals (49 under the I3 Instrument  and 8 under European Innovation Ecosystems) and selected 15 projects for funding ( 10 under I3 Instrument and 5 under the EIE)

Go to RIV selected projects

Policy background documents

News