What We Do

Impact Assessment

Donors, boards and communities increasingly ask not just what was delivered, but what changed. Our impact assessment work measures outcomes and impact against a programme's intended results, using rigorous mixed-methods designs suited to the programme's scale and context.

We have completed impact assessments across sectors including health, water and sanitation, livelihoods, and social protection — work that has directly informed programme design and donor reporting for our clients.

This service includes

  • Outcome and impact measurement design
  • Counterfactual / comparison-group approaches where appropriate
  • Mixed-methods impact studies
  • Sector-specific impact assessments (health, WASH, livelihoods, social protection)
  • Accountability and results reporting for donors and boards
  • Recommendations for scaling or replicating impact
Who It's For

Is This Right For You?

Programme owners, donors, and boards who need independent evidence of the impact — not just the outputs — of a completed or ongoing project.

Questions?

Frequently Asked Questions

Evaluation looks broadly at relevance, efficiency and effectiveness; impact assessment focuses specifically on measuring the longer-term change (impact) a programme has caused, often using comparison or counterfactual approaches.

Our completed impact assessments span water and sanitation, livelihoods and labour markets, social protection, and adolescent sexual and reproductive health, among others.

Yes — interim impact assessments are common and can inform mid-course adjustments, though the fullest picture of impact usually comes after programme completion.

Ready to talk about your impact assessment needs?

Tell us about your organisation and what you're trying to achieve — we'll get back to you with next steps.

Contact Olympus RETS