The clusters are the six thematic areas of Horizon Europe Pillar 2, funding applied research against specific societal challenges: health; culture and society; civil security; digital, industry and space; climate, energy and mobility; food, bioeconomy and environment. This is where the bulk of consortium calls sits.
Pillar II is the largest part of Horizon Europe by budget, around €47.4bn, and it holds most of the consortium calls. It is divided into six thematic clusters.
The logic here is the opposite of the ERC: you do not propose the topic – the Commission states a challenge, and you argue that your consortium can meet it.
The six clusters
Cluster 1: Health (~€6.9bn) – from prevention and digital medicine to health systems.
Cluster 2: Culture, creativity and inclusive society (~€1.4bn) – the smallest by budget, but the only one open to the humanities, cultural institutions and social research.
Cluster 3: Civil security for society (~€1.3bn) – crime and terrorism, cybersecurity, borders, infrastructure resilience.
Cluster 4: Digital, industry and space (~€13.5bn) – one of the two largest: AI, advanced manufacturing, materials, space.
Cluster 5: Climate, energy and mobility (~€13.5bn) – the other one: decarbonisation, renewables, transport.
Cluster 6: Food, bioeconomy, natural resources, agriculture and environment (~€9bn).
How to read a topic
A cluster is not the level you apply at. Clusters split into destinations, those into calls, and calls into topics. The topic determines everything: type of action and funding rate, expected outcomes, budget per project, consortium requirements and deadline.
Two topics in the same cluster can carry different types of action – and therefore different rates and rules. Decisions are made by reading the topic, not the cluster description.
What changed in 2026–2027
Topics are down by roughly a third and single-project topics halved. Half the call budget runs through lump sums. Some short proposals are assessed anonymously.
Horizontal calls also appeared, belonging to no cluster: research for the Clean Industrial Deal and an AI-in-science strand. If your topic is genuinely interdisciplinary, look there too.
Data current as of 27.07.2026. Verify the terms with the donor’s official portal before applying.
Sources
- HE Work Programme 2026-2027, General Introduction · 27.07.2026
Updated 27.07.2026 · Reviewed by: GetGrant editorial team