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ProgramWater Breakthrough Challenge 6
Pays UK water companies between £150,000 and £10 million a year to develop bigger, bolder water-sector innovations.
About
The sixth round ran two funding streams: a single-stage Catalyst stream and a two-stage Transform stream, both led by water companies with mentoring support from Arup and Isle Utilities. This round opened in September 2025 and has since closed, though the wider programme runs every year.
Climate Tech
Each grant below is a distinct funding opportunity with its own eligibility, scope, and deliverables.