Here is a list of some of the major credit reference agencies by country:
United States: Experian, Equifax, TransUnion
United Kingdom: Experian, Equifax, TransUnion, Callcredit
Canada: Equifax, TransUnion, Credit Bureau of Canada
Australia: Experian, Equifax, ills
India: CIBIL, Equifax, Experian, CRIF High Mark
Brazil: Serasa, Boa Vista
France: Experian, Equifax, ills
Germany: Schufa, Creditreform, Bürgel
Mexico: Buró de Crédito
Italy: CRIF, Experian
This list is not exhaustive, as the number and type of credit reference agencies can vary by country. Additionally, some countries may have multiple credit reference agencies operating in their markets