The Weave-UNISONO call, launched by the National Science Centre (NCN), is a multilateral funding initiative designed to support bilateral or trilateral research projects conducted collaboratively by Polish research teams and their counterparts from Austria, the Czech Republic, Slovenia, Germany, Switzerland, Luxembourg, or Belgium–Flanders. This program operates under the multilateral Weave Programme in which the NCN shall not act as the lead agency.

Polish research teams intending to cooperate with research teams from one or two of the following countries under the Weave Programme: Austria, the Czech Republic, Slovenia, Switzerland, Germany, Luxembourg, Belgium–Flanders may submit their NCN proposals to the NCN either:

• under the on-going Weave-UNISONO call, in the case of NCN proposals submitted to the NCN, for which joint proposals  will be submitted to and evaluated by one of the foreign partner institutions acting as the lead agency, in which case the NCN will not act as the lead agency; or
• under the OPUS call announced on a regular basis in September (the OPUS 28 + LAP/Weave with the call for proposals open to mid-December 2024), in the case of NCN funding proposals for research projects performed in accordance with the Lead Agency Procedure and evaluated by the NCN as the lead agency.

Under Weave-UNISONO, funding will also be awarded to trilateral research projects submitted by foreign research teams applying to the lead agency, i.e. to FWF, GAČR, ARIS, DFG, SNSF, FNR or FWO to be carried out jointly with the Polish research team applying to the NCN and with the participation of another foreign research team applying for funding under the Weave Programme to its respective institution cooperating with the lead agency.

Therefore, cooperation will also be possible with research teams from Belgium – Wallonia (funded by the F.R.S. – FNRS – Fund for Scientific Research – Wallonia-Brussels), Croatia (funded by the HRZZ – Croatian Science Foundation) and Switzerland (funded by FORMAS – Swedish Research Council for Sustainable Development).

Available Funding Amount: The NCN has allocated a total of PLN 20,000,000 for proposals submitted between 1 January and 31 December 2025. The specific funding amount per project will depend on the project's requirements and evaluations.

Submission Deadlines: Proposals can be submitted on an ongoing basis throughout the year. However, specific deadlines may apply depending on the lead agency involved.

Eligible Countries: The call supports collaborative projects between research teams based in Poland and those from Austria, the Czech Republic, Slovenia, Germany, Switzerland, Luxembourg, or Belgium–Flanders. Additionally, trilateral projects may involve partners from Belgium–Wallonia, Croatia, and Sweden, provided they secure funding from their respective institutions