GLEIF API
GLEIF (gleif.org) has 2 public methods: get corporate parents and get legal entity. Each costs 1 credit per completed run (1¢ with pay as you go); failed runs are free.
Unofficial. Not affiliated with or endorsed by GLEIF.
Methods
2Finds a company's reported direct and ultimate accounting-consolidation parents, the reasons parents are not reported, and direct children in the GLEIF LEI system.
Returns legal name, LEI, country, direct and ultimate parents with reasons, child counts, direct children
Readgleif.org/get_corporate_parentsLooks up the official LEI record for a company name or LEI, optionally narrowing namesakes by registered country. Prefers active records with the closest name.
Returns legal name, LEI, status, addresses, country, legal form, registration authority, registration dates, parents, other names
Readgleif.org/get_legal_entity