On-demand Global Catalyst for a healthier planet
We equip professionals and institutions to tackle global health challenges through consultancy, capacity building, collaboration and co-creation.

The challenges we exist to meet
of human diseases are zoonotic — spillover originating mostly in wildlife.
Source · One Healthdengue infections a year, with half the world's population at risk.
Source · WHOthe cost of recent epidemics — H1N1 ($55bn), Zika ($18bn), Ebola ($10bn).
Source · World Bank, 2018of the world's 7.9 million annual cancer cases occur in low- and middle-income countries.
Source · WHOPhDs needed across Africa, the fastest-growing continent, within ten years.
Source · World Bankhigher-education enrolment worldwide, growing from 2000 to 2025.
Source · NSFOur work advances the UN Sustainable Development Goals
From zero hunger and good health to clean water, climate action and partnerships — One Health cuts across the goals that shape a healthier, more equitable world.
Our Mission
Equip professionals and institutions to tackle global health challenges through consultancy, capacity building, collaboration and co-creation.
Our Vision
Create the next generation of institutional systems and health professionals for a healthier planet.
How we catalyze global health
The four Cs — how institutions and professionals work with the alliance.
Consultancy
Science-informed, solution-oriented consulting for NGOs, academia and industry.
Learn moreCapacity Building
Health system assessment, strategic roadmapping and workforce development.
Learn moreCollaboration
Equitable North–South partnerships built on shared goals and measurable outcomes.
Learn moreCo-creation
Resource mobilisation through to laboratory, hospital and field implementation.
Learn moreMeet Catalyst — the alliance, made usable
Fifteen years of One Health networks, turned into a place you can actually work. Institutions post engagements, vetted specialists respond, and professionals keep learning — in one platform.
- Find vetted specialistsSearch 11,000+ professionals across 89 countries by expertise, region and availability.
- Scope & manage engagementsFrom opportunity to deliverable, with milestones and secure payments built in.
- Learn with OHGA AcademyModular training, certifications and mentorship for the global health workforce.
Built on 15+ years of credible global consortia
OHGA grew out of ICOPHAI (2011), the One Health Eastern Africa Research Training programme (OHEART, 2011) and the Global One Health Summer Institute (GOHSI, 2012) — alongside Global One Solutions (Ohio, USA) and MEKARI Global One (Nairobi, Kenya).
About the allianceOur model
An integrated, trans-disciplinary model addressing complex challenges with a proven One Health approach.
Global network
Complementary leadership across international education, global health and beyond.
>$500M mobilised
Collectively raised through competitive grants, contracts and donors.
Exceptional leadership
Leaders who built successful model systems, from gap assessment to global implementation.
Guided by exceptional global leaders



Trusted by institutions worldwide












Let's build a healthier planet — together
Whether you are shaping policy, funding initiatives or leading research, there is a place for you in the OHGA ecosystem — Catalyst is the way in. For questions, partnerships or sponsorship, contact us.
