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Collaboration for Evidence Synthesis

Improving the Strength and Rigour of Systematic Reviews

We provide end-to-end methodological design and analysis for evidence synthesis products.

Our Approach

Our expertise ensures methodological integrity and actionable insights for public health policy.

Expand Knowledge Horizons

Capacity Building & Innovation

Collaboration & Support

We support organizations and researchers to ensure methodological strength and clarity of evidence synthesis.

We empower stakeholders to make informed decisions by effectively evaluating and integrating research.

We leverage expertise and stakeholders to ensure comprehensive evidence synthesis products.

News & Events

Workshop on Risk-of-Bias

23-24 July 2026: Two-day online workshop on Risk-of-bias assessment. Click here for more information.

New Publication: Systematic review

Our latest research on scoping review is now available in the Methods X.

Trusted Collaborations

"I am deeply grateful for the entire team for their outstanding support in the development of my systematic review article. Their expertise, clear guidance, and timely communication made the process smooth and enriching. The review was not only rigorous and methodologically sound, but also clear and impactful. I am truly grateful for their contribution and would highly recommend their services to any researcher undertaking a systematic review."

Ms. Jyoti

"Collaborating with C4ES has helped us increase our capacity in systematic reviews and we were able to deliver a systematic review within the planned time."

Dr. Aneesha