EIC Accelerator

EIC Accelerator Challenges

Funds strategic deep-tech challenge projects in materials, energy, biotechnology, and climate innovation.

Eligibility · EU member states

EIC Accelerator Challenges 2026 provides the same blended grant and equity package as EIC Accelerator Open — up to €2.5 million non-dilutive grant plus €1–10 million equity investment per company — but restricts applications to five strategic challenge topics defined in the 2026 EIC Work Programme. The total 2026 budget for the Challenges track is €220 million, with individual challenge budgets ranging from €20 million to €50 million. The five 2026 topics are: Advanced Materials for Renewable Energy and Energy Storage Systems; Alternative Concepts and Key Enabling Technologies for Fusion Power Plants; Biotech for Regenerating Agricultural Soils; Boosting the European Critical Raw Materials Value Chain; and Deep Tech for Climate Adaptation. The same six Step 2 cut-off deadlines used by Accelerator Open apply — 7 January, 4 March, 6 May, 8 July, 2 September, and 4 November 2026.

Eligibility mirrors Accelerator Open: single start-ups and SMEs only, no consortia, established in EU Member States or Horizon Europe Associated Countries. Natural persons who intend to establish an SME before Step 2 may also apply. Small mid-caps (up to 499 employees) are eligible for the investment-only component. UK entities are limited to the grant-only scheme. The identical four-step application process applies: short proposal, full 20-page proposal, EIC Jury interview, and grant agreement with due diligence. An info day recording and slides are available on the EIC website for each challenge topic.

Applicants whose technology falls within one of these five challenge areas should apply to the Challenges track rather than Accelerator Open, as challenge-specific panels include domain experts and the evaluation criteria are calibrated to the strategic challenge. Companies working on topics outside these five areas must use Accelerator Open instead. Each challenge has a defined theory of change published in the work programme — applicants demonstrating direct alignment with that theory of change, not just a vague thematic fit, score significantly higher in jury interviews.