The Lorentz Center covers a substantial part of your workshop costs.
For regular Lorentz Center workshops we provide:
- In-kind support, including: the venue and facilities, social events (welcome reception, workshop dinner), beverages and cookies in the breaks, a workshop poster, organizational support, and support developing the proposal and program.
- A refund budget to cover lodging, travel and/or lunch costs for some of the participants: based on the number of participants present on-site and the duration of the meeting; € 25,- per person per day, also calculated in the budget spreadsheet. Note that, as of January 2023, we will not refund flight tickets for distances <500 km. (See our webpage Travel sustainably.)
This amounts to roughly a total of € 25.000 Lorentz Center support per workshop. This funding is made available by Leiden University and the Dutch Science Foundation (NWO).
In addition, many workshops have extra funding from sources outside the Lorentz Center, acquired by the scientific organizers for their specific workshop.
Sometimes the Lorentz Center will offer basic funding instead of the regular funding. Basic funding covers the costs for the venue and facilities, the welcome reception, beverages and cookies in the breaks, organizational support, and support developing the proposal and program. Any other costs should be financed with external funds secured by the scientific organizers.
The two main reasons for this option are  the nature of the workshop; r instance closed meetings for already-established groups or consortia or workshops carried out within large grants with funding for workshop (e.g. ERC advanced) and  workshop proposals that fall just below the cut-off for workshops we can support with regular funding, but that we still have manpower to support.
In both cases, the proposals must be well evaluated by the relevant scientific advisory boards.
For your inspiration, we have listed the organizations that have funded Lorentz Center workshops:
list of funding sources from the past.