Meet the Collective & Advisory Council

Global Health 50/50 works to bridge the gap between evidence and organisational and policy change through its unique operating model. Our collective brings together academic researchers, medical doctors, political strategists, communication experts and gender advocates, alongside an esteemed Advisory Council of influential champions and policy makers. 

You can read more about our workplace values and policies here.

GH5050 has a small team of full- and part-time staff, supported by a passionate global network of members. To limit the potential for conflicts of interest, collective members affiliated with organisations reviewed by GH5050 are not engaged in reviewing or coding organisations that they work for or advise.

Our Secretariat

Prof. Kent Buse
Co-Founder and Co-CEO
Prof. Sarah Hawkes
Co-Founder and Co-CEO
Sonja Tanaka, MPH
Director of Programmes and Innovation
Charlie Pelter
Head of Communications & Advocacy
Sarah Lee
Sarah Lee, MPH
Head of Operations
Zahrah Nesbitt-Ahmed, PhD
Senior Research & Impact Lead
Lynsey Robinson, PhD
Health Lead
Govindi Deerasinghe
Govindi Deerasinghe, LLM
Justice Lead
Justyna Czarniecka, LLM
Finance Manager
Imogen Bakelmun, MA
Curator, This is Gender Collection
Natasha Donkin
Communications Executive

Our Research Consultants

Daniel Anguah, LLM
Justice Researcher
Adeyeye Adebisi Anthonia, MBBS, MSc
Health Researcher
Grace Arina, LLM
Justice Researcher
Priscilla Ama Forson, MSc
Justice Researcher
Unsia Hussain, MSc
Health Researcher
Alma Ionescu
Health Researcher
Rebecca Langella
Health Researcher
Jiwon Lee, MSc
Health Researcher
Victoria Olarewaju, MSc
Health Researcher
Nicholas Opoku, LLM
Justice Researcher
Lydia Sloof
Health Researcher
Dahye Yim
Health Researcher
Katarina Zajacova, PhD
Justice Researcher
Zahra Zeinali, MD MPH
Health Researcher
David Zezai, MSc
Health & Justice Researcher

Former collective members

Silviya Chaulagain, MSc
Researcher
Aaron Koay, MPharm, MSc
Researcher
Huong Le
Researcher
Sarmila Dhakal, MPH
Researcher
Clara Affun-Adegbulu, MSc
Wafa Aftab, MPH
Researcher
Claudia Ahumada, MA
Fiona Bakelmun, BA
Researcher
Alex Bamford-Blake
Administration Assistant
Emily Blitz, MA, DES
Independent Ethics & Integrity Counsel
Charlotte Brown
Chloe Byers, MSc
Angela Y. Chang, ScD
Researcher
Bea Coates, BA
Researcher
Kate Dovel, PhD
Researcher
Lawrence Eleh, PhD
Researcher
Mireille Evagora-Campbell, MA
Research Officer
Fizza Fatima, BSc
Researcher
Erick Freire
Researcher
Ilaria Galizia, MD
Researcher
Sophie Gepp, MPH
Researcher
Jasmine Gideon, PhD
Senior Researcher
Ysabel Gonzalez Rico
Researcher
Jaya Gupta, PhD
Researcher
Sophie Hampton, PhD
Head of Operations
Manasi Hansoge, MSc
Researcher
Mikaela Hildebrand, MSc
Strategic directions and impact
Lara Hollmann, MSc
Researcher
Fatima Irfan
Researcher
Jagnoor Jagnoor
Researcher
Mairi Jeffery, MSc
Ekatha Ann John, MA
Researcher
Dahye Kim
Researcher
Ruth Lawlor
Suna Lee, MSc
Research Associate
Rebekah Merriman, MD
Researcher
Ben Millard
Communications intern
Edward Mishaud, MSc
Elias Nosrati
Kristine Onarheim, PhD
Researcher
Emmanuel Otache
Designer
Alex Parker, PhD
Communications and advocacy
Anna Purdie, MSc
Artricia Rasyid
Emma Rhule, PhD
Trustee
Andrew Riley, MSc
Research and communciations
Isabelle Robson, MSc
Researcher
Chelsea Kai Roesch, MA
Researcher
Mehrnoosh Samaei, MPH
Researcher
Geordan Shannon, PhD
Ashley Sheffel, DrPH
Metti Temesgen
Treasure Udechukwu
Researcher
Nina van der Mark, MSc
Researcher
Kate Williams
Researcher
Samina Yaqub, BA (Hons)
Head of Operations
Dina Youssef, MPH
Researcher
Virginia Zarulli, PhD
Researcher
Laure-Anais Zultak, MSc
Researcher

The Global Health 50/50 Advisory Council is comprised of leaders in the fields of gender, global health and development, who are passionate about advancing gender equality and better health for all. Serving as ambassadors in their personal and voluntary capacity, they support the work of the initiative, amplify its findings and guide the strategic direction of GH5050. We strive for diverse intersectional representation on our Advisory Council and balance, including in terms of expertise, age, gender and geography.

Our Advisory Council

Seye Abimbola
Editor-in-Chief, BMJ Global Health
Tammam Aloudat
CEO, The New Humanitarian
Jan Beagle
Director-General, International Development Law Organization
James Chau
Host of The China Current and WHO Goodwill Ambassador for SDGs and Health
Helen Clark
former Prime Minister of New Zealand & Administrator, UNDP
Jocalyn Clark
International Editor, The BMJ
Lucía Pérez Gómez
Vice-President for External Affairs, International Federation of Medical Students Association
Katja Iversen
Executive adviser, author and advocate
Sharmila Mhatre
Independent Researcher
Geeta Misra
Executive Director, CREA
Mahesh Puri
Co-Director, Center for Research on Environment Health and Population Activities, Nepal
Mariângela Batista Galvão Simão
Former Assistant Director-General, World Health Organization
Ravi Verma
Asia Regional Director, International Center for Research on Women
Marijke Wijnroks
Head of Strategic Investment and Impact Division, The Global Fund

Our Trustees are a group of individuals from diverse disciplinary backgrounds who govern the Global Health 50/50 Charity (charity number 1194015).

Our Trustees

Peter Cafferkey
Trustee
Tiantian Chen, PhD
Chair of Trustees
Paul Sansome, MA
Trustee