HIA has been developing nationally and internationally from the 1990's. The following websites provide useful links to organisations who work in HIA:

Ireland and Northern Ireland

• Institute of Public Health in Ireland
• Belfast Healthy Cities
• Galway Healthy Cities
• Health Service Executive

Rest of Europe

• HIA Gateway       
• Welsh Health Impact Assessment Support Unit 
• International Health Impact Assessment Consortium (IMPACT)
• London Health Observatory
• Department of Health, England
• Scottish HIA Network 
  
• HIA Community Website
• HIA Database, RIVM (Netherlands) 
• The European Observatory on Health Systems and Policies 
• STAKES - Human Impact Assessment (Finland)
• World Health Organization - Regional Office for Europe

• World Health Organization
• International Association for Impact Assessment
• Health Canada
• New South Wales - HIA Connect (Australia)
• Deakin University (Australia)
• Monash University (Australia)
• Massey University (New Zealand)
• Centers for Disease Control and Prevention (USA)
  
• Health Impact Assessment Collaboration: San Francisco Bay Area (USA)
• UCLA Health Impact Assessment Clearinghouse - Learning and Information Center (USA)