Expert public health consultancy for a healthier future
Science-informed, solution-oriented consulting that responds at local and national level — for governments, NGOs, academic institutions and industry.
Demand for implementation expertise has never been higher
Pathogens of pandemic potential. Multi-drug resistant infections. Vector-borne disease driven by climate change. Alongside the enduring burden of chronic and mental illness.
OHGA connects professionals across the Global North and Global South to close the health-system infrastructure gap where it is widest.
Global knowledge, local roots
Headquartered in Dublin, Ohio and Nairobi, with regional offices in Brazil, India, Mexico and Thailand — positioned at the intersection of Global North and Global South.
One Health approach
No compartmentalising human, animal, plant and environmental health — essential for zoonoses, AMR and climate-sensitive disease.
Transdisciplinary teams
Each consultation is staffed by a mix of skills, enabling scientifically accurate, rapid on-demand solutions.
Evidence-based planning
Seasoned epidemiologists and biostatisticians applying genomics, bioinformatics, AI and predictive modelling.
Environmental health
Scientists researching disease drivers across air, soil and water — plus chemical pollution and climate factors.
Veterinary & farm health
Animal health surveillance and best farming practice at the animal–human–environment nexus.
Policy & regulation
Expertise in international health systems, compliance regulation and policy development.
Support that outlasts the final report
We stay alongside your teams across levels and sectors — from the first scoping call through to evaluation.
Join CatalystStrategy & policy formulation
Data-informed health policy built with national and subnational government — incorporating health equity, climate resilience and One Health factors.
Epidemiological analysis & data analytics
Disease-monitoring systems, infection modelling and real-time outbreak detection using GIS mapping, machine learning and interactive visualisation.
Risk evaluation & preparedness planning
Vulnerability analyses identifying at-risk communities, with pandemic preparedness built through simulation exercises and scenario planning.
Workforce planning advice
Staffing models, skills-gap analysis and training strategy for front-line providers, administrators and policymakers — delivered with our Capacity Building team when programmes move to the classroom.
Who is eligible
- National & local governments — health, agriculture and environment ministries.
- NGOs & civil society — care delivery, disaster response and long-term population health.
- Multilateral & international agencies — surveillance systems and pandemic preparedness.
- Private industry — vaccines, diagnostics, therapeutics and occupational health.
- National research centres — public health, environment and livestock R&D.
- Foundations & philanthropy — technical review, partner evaluation and impact analysis.
Take your brief to Catalyst
Every consultancy on this page starts the same way — post the brief, review proposals from vetted specialists, and run the engagement through to evaluation.
- Match to the right expertiseFilter 11,000+ professionals by discipline, region and availability, then shortlist in minutes.
- Scope the engagementTurn objectives into deliverables and milestones, with secure payments built in.
- Track delivery and outcomesFollow progress, review deliverables and keep your evaluation evidence in one place.
