About Us

DHA delivers powerful research, communications and advocacy strategies for UK and international not-for-profit and public sector organisations working to create meaningful social change. Our work ranges across social justice and education, the environment, arts and culture, public services and international development.

We help clients to develop strong evidence, enhance messaging and external relations, and structure their communications for maximum impact. We work with the media, policymakers and key opinion formers to ensure our clients are effective in influencing and challenging political, social and economic agendas. 

Established in 2000 by a former special adviser to the Department for International Development, DHA has an impressive track record of success across the public and non-profit sectors. Our team includes national and international experts in a wide range of policy areas. With offices in London, Liverpool and Birmingham we work across the UK and the developing world.

10 ways DHA can help you

DHA provide a range of communication, advocacy and research services to ensure not-for-profit and public sector bodies achieve their policy goals.

David Casey


Tamsin Cox

Head of Policy and Research

Jon Flinn

Director of Communications

Daniel Harris

Managing Director

Jackie Humphreys

Office Manager

Our Associates