Call for proposals: Developing a Water and Sanitation Impact Estimation Tool for outcome-based finance via LinkedIn

Aqua for All

Home-based/Remote

We at Aqua for All are seeking an individual consultant or a team of consultants to develop an evidence-based methodology and practical tool that links water and sanitation enterprise outputs to health outcomes. The tool will be designed for broader application, with particular relevance to Social Impact Incentives (SIINC) and other outcome-based finance mechanisms.

The assignment will include: 

✅ Review of existing evidence linking water and sanitation outputs and health outcomes 
✅ Development of a water and sanitation-health impact estimation methodology 
✅ Guidance on assessing the additional health impact generated through outcome-based finance 
✅ Development and testing of a practical calculation tool 
✅ Validation with sector experts and practitioners

We are particularly interested in teams combining expertise in:

✅Water and sanitation, and health 
✅Impact measurement and evaluation
✅Quantitative modelling and tool development  
✅Results-based financing, SIINC or other outcome-based financing mechanisms.

Read the full Terms of Reference and submission requirements below in the comments.

The proposal deadline is Monday, 26 October 2026.

If you are interested, or know a suitable consultant or organisation, please get in touch or share this opportunity within your network.

13 days remaining

Apply by 26 October, 2026

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