Three Stones International partners with governments, foundations, development organizations, and the private sector to deliver locally informed, evidence-based solutions that strengthen systems and improve lives across Africa.Â
evidence. insights. impact.Â
our services
We help governments, donors, foundations, NGOs, and the private sector generate evidence, strengthen systems, and improve development outcomes. Our multidisciplinary team combines research, behavioral science, strategy, and implementation support to solve complex challenges across Africa.
Research, Evaluation & Learning
Social & Behavior Change
Strategy & Policy Development
Rigorous evidence to inform better decisions.
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We design and deliver mixed-methods research, formative studies, baseline and endline evaluations, impact assessments, learning agendas, and monitoring, evaluation, and learning (MEL) systems that generate actionable insights for policy and programming.
Understanding people. Designing change.
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We apply behavioral science, human-centered design, social marketing, and participatory research to understand the drivers of behavior and develop evidence-based strategies that improve health, nutrition, agriculture, education, climate resilience, and other development outcomes.
Turning evidence into action.
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We support governments and development partners to develop national strategies, policy frameworks, implementation roadmaps, theories of change, and investment plans grounded in evidence and aligned with country priorities.
Systems Strengthening
Data, Analytics & Decision Support
Convening & Facilitation
Building stronger institutions for lasting impact.
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We strengthen governance, coordination, institutional capacity, and learning systems that enable organizations and governments to deliver more effective and sustainable programs.
Making data meaningful.
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From survey design and digital data collection to visualization, GIS, dashboards, and advanced analysis, we help organizations transform complex data into practical insights for decision-making.
Supporting people and organizations to succeed.
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We design and facilitate workshops, stakeholder consultations, co-creation processes, technical training, mentoring, and learning exchanges that build long-term capacity and ownership.
our approach
evidence that drives action.
At Three Stones International, we believe lasting development impact requires more than strong evidence. It requires understanding people, systems, and institutions—and working alongside partners to translate knowledge into practical solutions.
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Our multidisciplinary teams combine rigorous research, behavioral science, systems thinking, and collaborative design to develop solutions that are technically sound, locally grounded, and built for implementation.
three stones international's
evidence-to-impact framework
Understand → Analyze → Co-Create → Design → Strengthen → Learn & Adapt
1. Understand
We begin by listening: using research, stakeholder engagement, and contextual analysis to understand the people, systems, and challenges shaping the issue.
2. Analyze
We synthesize quantitative and qualitative evidence to identify root causes, opportunities, and the key drivers of meaningful change.
3. Co-Create
We work alongside governments, communities, and partners to design solutions that are practical, locally grounded, and built for ownership.
4. Design
We translate evidence into actionable strategies, policies, behavior change interventions, and implementation roadmaps.
5. Strengthen
We build institutional capacity, strengthen systems, and support implementation to ensure sustainable impact.
6. Learn & Adapt
We monitor progress, evaluate results, and continuously refine our approach to maximize learning and long-term impact.
featured work
Explore how we've partnered with governments, donors, and development organizations to generate evidence, strengthen systems, and improve lives across Africa.
areas of impactÂ
For more than a decade, TSI has partnered with governments, development agencies, NGOs, foundations, and the private sector to address complex challenges across development sectors.
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​Nutrition • Food Systems • Agriculture • Climate • Health • Education • Governance • Digital Development • Gender • WASH