Here are some useful links for your AML related tasks.
GLEIF search page: https://www.gleif.org/en
Official list of EU Business Registers: https://e-justice.europa.eu/topics/registers-business-insolvency-land/business-registers-eu-countries_en
UK Business Register: https://find-and-update.company-information.service.gov.uk/
Swiss Business Register: https://traderegistry.ch/
Investment Adviser Public Disclosure search: https://adviserinfo.sec.gov/
SEC EDGAR search: https://www.sec.gov/edgar/search/
Basel AML Index: https://index.baselgovernance.org/
Wolfsberg Questionnaires: https://wolfsberg-group.org/news/publication-of-the-cbddq-fccq-guidance-glossary-and-faqs
EU list of non-cooperative jurisdictions for tax purposes: https://www.consilium.europa.eu/en/policies/eu-list-of-non-cooperative-jurisdictions/
EU High-Risk Third Countries list: https://finance.ec.europa.eu/financial-crime/anti-money-laundering-and-countering-financing-terrorism-international-level_en
FAFT website: https://www.fatf-gafi.org/
Egmont Group website: https://egmontgroup.org/
ACAMS website: https://www.acams.org/en