NATO Defence Innovation Accelerator for the North Atlantic (DIANA)
NATO DIANA Accelerator
Usually opens in June and July
Projected from the months this call usually opens — not a date the funder has confirmed.
Projected from the pattern of past calls — confirm on the funder's page before planning around it.
Selected DIANA Innovators receive EUR 100,000 contractual funding for the Accelerator Programme, and may receive up to a further EUR 300,000 to iterate and demonstrate their solution.
NATO Defence Innovation Accelerator for the North Atlantic (DIANA)
public · supranational
Deadline: One call a year — DIANA's challenges for 2027 have closed (proposals were due 3 July 2026; selection announced December 2026; cohort starts January 2027). Targeted Dynamic Challenges are rolled out throughout the year.
This funder does not publish a success rate. We rank it using the rate observed across similar programmes and label it as an estimate rather than implying we know.
Quick — mostly identity and bank details.
Who can apply
- Sectors: deeptech, ai, space, energy
- Stage: pre-seed, seed and Series A
- Locally registered entity required
Companies from across the Alliance (NATO member countries) providing legal name, place of registration, HQ and ownership/control attestations. Start-ups and SMEs benefit most; universities and non-profit groups are not eligible; technology at TRL 4 or above.
Related reading: How grant deadlines actually work
Source. https://www.diana.nato.int/challenges.html
"DIANA's Challenges for 2027 have now closed."
Last checked against the official page on 5 October 2026
Source: funder's homepage — the programme page was not found
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