OpenCorporates
OpenCorporates aggregates company records from official registers worldwide, covering company details, directors, and regulatory filings. It is the largest open database of companies anywhere, which makes it useful for building knowledge graphs of corporate ownership and control.
You can browse and search the data freely on the website, but bulk downloads and API access are commercially licensed, so factor licensing into your plans if you want to ingest the data at scale.
Related sources
Open Beauty Facts / Open Products Facts
Sister projects to Open Food Facts that apply the same collaborative model to cosmetics (Open Beauty Facts) and general consumer goods (Open Products Facts). Contributors scan barcodes and photograph packaging to build an open database of ingredients and product information.
Open Food Facts
A collaborative, free, and open database of ingredients, nutrition facts, and information on food products from around the world. Contributors scan barcodes and photograph ingredient lists and nutrition tables, following the model of Wikipedia and OpenStreetMap. Covers millions of products across 140+ countries.
OpenSanctions
A database of sanctioned entities, politically exposed persons, and related risk data, aggregated from official sources worldwide. Links entities to OpenCorporates where both hold the same entity, so you can combine sanctions data with company control information.