Effective impact measurement begins with a clear theory of change: a logical account of how project activities lead to outputs, which produce outcomes, which contribute to longer-term impact at the community and ecosystem level. Without this foundation, monitoring data accumulates without adding understanding, and evaluation findings cannot be meaningfully attributed to project interventions.
We develop bespoke impact frameworks for water infrastructure projects — working with project teams, investors, and beneficiary communities to agree on the outcomes that matter most, the indicators that will track progress toward them, and the data collection methods that are feasible given project resources and timelines.
Our frameworks are mapped to the reporting requirements of the relevant funders — whether IFC Performance Standards, IDB Invest impact metrics, or the proprietary frameworks of specific impact investors — so that the work of measurement directly serves the work of investor reporting.

A monitoring system is only valuable if it generates reliable data at the right frequency, from the right sources, at a cost that is proportionate to the decisions it informs. We design monitoring systems that are fit for purpose: robust enough to withstand external scrutiny, efficient enough to be sustained without specialist support, and flexible enough to evolve as the project matures.
Our monitoring systems for water infrastructure projects typically combine household survey instruments (measuring access, quality, reliability, and affordability of service), operational performance data (production volumes, system uptime, water quality test results, tariff collection rates), environmental monitoring (water source quality, ecosystem health indicators), and financial performance tracking.
Where appropriate, we integrate remote sensing and digital data collection tools — including mobile survey platforms, IoT sensor networks, and satellite-derived environmental indicators — to increase data coverage and reduce the cost of primary data collection.

The ultimate purpose of impact measurement is not reporting — it is learning. Projects and programmes that systematically reflect on what their data is telling them, and that adjust their approach in response, consistently outperform those that treat monitoring as a compliance exercise.
We facilitate structured learning processes that help project teams and investors extract actionable insight from monitoring and evaluation data: identifying what is working and why, surfacing unexpected outcomes — positive and negative — and designing operational adjustments that strengthen impact delivery without compromising financial performance.
Our learning facilitation draws on the principles of adaptive management and is informed by the wider body of evidence on what works in water service delivery and water resources management in Latin America. Where project experience generates findings of wider relevance to the sector, we support the communication of these findings through policy briefs, practitioner networks, and conference presentations.

Periodic independent evaluation provides the independent verification that distinguishes credible impact claims from marketing narratives. We design and manage evaluation processes — including baseline studies, mid-term reviews, and endline assessments — that provide rigorous, attributable evidence of project outcomes and impact.
Our evaluations apply mixed-methods approaches: combining quantitative data from monitoring systems with qualitative evidence from focus groups, key informant interviews, and participatory community assessments. Where experimental or quasi-experimental designs are feasible, we use them to strengthen the attribution of observed outcomes to project interventions.
We also provide verification services for projects that have commissioned their own monitoring and wish to have the results independently reviewed — a service increasingly required by development finance institutions and by the growing number of impact investors who apply social and environmental audit standards equivalent to those applied to financial audits.

Accountability in impact investment means reporting to two audiences simultaneously: the investors and institutions who provide capital, and the communities and ecosystems who are the intended beneficiaries. These audiences have different information needs, different levels of technical literacy, and different expectations of what a credible account of impact looks like.
We design stakeholder reporting systems that serve both audiences — producing investor-grade impact reports that meet the documentation standards of development finance institutions and accredited impact investors, alongside accessible community-facing communications that give beneficiaries a meaningful account of what the project is delivering for them and what they can expect in the future.
Our reporting tools include: annual and quarterly impact reports, investor disclosure documentation, SDG-aligned contribution statements, and community-level feedback and grievance mechanisms. All reporting is aligned with the impact framework developed at the outset of the engagement, ensuring consistency across the investment lifecycle.