# Weave Lead Agency – Switzerland/Slovenia (SNSF as Lead Agency)

**Funder:** SNSF
**Deadline:** 1 October 2026 (Two SNSF Lead Agency deadlines: 1 April 2026 and 1 October 2026. ARIS deadline was 31 March 2026 (14:00 CET).)
**Duration:** Up to 48 months
**Consortium:** Required — bilateral collaboration between Swiss (SNSF) and Slovenian (ARIS) research teams
**Application:** Single stage; if submitted to ARIS as Lead Agency, a copy must be submitted to SNSF via mySNF within 7 days
**Frequency:** Annual
**Eligible countries:** CH
**Official call:** https://www.snf.ch/en/hTBUS7CLoDTMortt/funding/projects/weave-lead-agency-slovenia
**Last verified:** 28 June 2026

## Eligibility & scope

Weave bilateral project funding between Switzerland (SNSF) and Slovenia (ARIS). Swiss applicants apply to SNSF as Lead Agency (max 48 months); Slovenian-led projects go via ARIS (max 36 months). Applicants may hold max two simultaneous SNSF project grants, one of which must be a Weave/Lead Agency project. Topics of concurrent grants must be clearly distinct.

## Summary

The SNSF Weave Lead Agency programme funds bilateral research projects between Swiss and Slovenian teams for up to 48 months when SNSF acts as the lead funder. Projects must involve genuine collaboration between a Swiss host institution and a Slovenian partner under the bilateral Weave procedure. Applicants may hold a maximum of two concurrent SNSF grants, one of which must be a Weave/Lead Agency project; topics of concurrent grants must be clearly distinct.

## Who should apply

- Swiss researchers hosted at a recognised Swiss research institution
- Research teams planning genuine bilateral collaboration with a Slovenian partner via the Weave procedure
- Applicants with at most one other concurrent SNSF grant (topics must be clearly distinct)
- Projects spanning fundamental research through applied topics across all disciplines

## Key dates

- Two annual deadlines: 1 April 2026 and 1 October 2026 (SNSF as Lead Agency)
- Single-stage application; if submitted via ARIS as Lead Agency, copy to SNSF via mySNF within 7 days
- Up to 48-month project duration (SNSF as Lead Agency) or 36 months (ARIS as Lead Agency)

## Tips for applicants

- Bilateral collaboration is mandatory, ensure your Slovenian partner is formally committed and named in the proposal; solo Swiss projects are not eligible.
- If you already hold one SNSF grant, the Weave/Lead Agency project must be your second and only SNSF project; monitor the limit strictly to avoid administrative rejection.
- Clarify upfront which agency acts as Lead (SNSF or ARIS); this determines your submission route, deadline timing, and maximum duration (48 vs. 36 months).

## Frequently asked questions

### What is the Weave Lead Agency procedure?

It is a bilateral funding mechanism under which a Swiss team (hosted at a Swiss institution) partners with a Slovenian team to conduct joint research. SNSF or ARIS acts as the lead funder; the lead agency sets the maximum project duration and submission deadline.

### How long can a Weave Lead Agency project last if SNSF is the lead?

Up to 48 months. If ARIS (Slovenia) is the lead agency, the maximum duration is 36 months.

### Can I hold other SNSF grants while applying for Weave?

Yes, you may hold a maximum of two simultaneous SNSF project grants, one of which must be a Weave/Lead Agency project, and the topics of the concurrent grants must be clearly distinct.

### What are the SNSF Weave Lead Agency deadlines in 2026?

Two open deadlines: 1 April 2026 and 1 October 2026 for SNSF as Lead Agency. An ARIS deadline (31 March 2026) also applied for ARIS as Lead Agency.

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Source: [The Great Grantsby](https://grantsby.eu/grants/snsf-weave-lead-agency-switzerland-slovenia-snsf-as-lea-2026-10) — EU grant monitoring for academic researchers. Always verify details on the funder's website before applying.

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