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Bridge to Impact

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.

Illustration of a connected digital globe
11,000+
Professionals
89
Countries
324
Institutions
15+
Years
Global health threats & needs

The challenges we exist to meet

60–75%

of human diseases are zoonotic — spillover originating mostly in wildlife.

Source · One Health
400M

dengue infections a year, with half the world's population at risk.

Source · WHO
$10–55B

the cost of recent epidemics — H1N1 ($55bn), Zika ($18bn), Ebola ($10bn).

Source · World Bank, 2018
~70%

of the world's 7.9 million annual cancer cases occur in low- and middle-income countries.

Source · WHO
100,000

PhDs needed across Africa, the fastest-growing continent, within ten years.

Source · World Bank
100M → 250M

higher-education enrolment worldwide, growing from 2000 to 2025.

Source · NSF
Aligned with global goals

Our 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.

The OHGA Product

Meet 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.
OHGA's network

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 alliance

Our 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.

Leadership

Guided by exceptional global leaders

Wondwossen Gebreyes
Wondwossen Gebreyes, DVM, PhD
Founder & Chief Executive Officer
Tequam Worku
Tequam Worku, DrPH, MPH
Co-Founder & COO
Samuel Kariuki
Samuel Kariuki, DVM, PhD
Director, Research & Development
Sponsors & partners

Trusted by institutions worldwide

UK Aid
USDA
World Bank
World Organisation for Animal Health
CDC Foundation
CFSAN
CNPq
FAPESP
FACEPE
Association of African Universities
Resolve to Save Lives
UNU-BIOLAC
Join the alliance

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.