National evaluation systems and impact investment both exist to answer the same fundamental question: is this working? Yet these two domains have developed in near-total isolation — different frameworks, different reporting standards, different stakeholders. The result is a measurement gap that costs the world trillions in misallocated capital and untracked outcomes.
We founded Sigma IMS to bridge this gap. By consolidating 57 impact measurement and evaluation frameworks into a unified, sector-agnostic methodology, we enable organisations to collect data once and report to any stakeholder — whether they require investor-grade impact metrics, SDG alignment, development finance compliance, national evaluation criteria, or custom frameworks.
The same methodology that scores a portfolio investment also diagnoses a national evaluation system, because the underlying measurement principles are universal: What are we measuring? For whom? How well? Who contributes? And what could go wrong?
Based in Voorburg, Netherlands, we bring big-firm quality with boutique attention. Our AI-assisted approach is grounded in specific, validated process-level applications — not generic promises. Every quantitative output is cross-checked against practitioner expertise before it is used, ensuring that numbers reflect reality.
