Most likely from scraping (crunchbase, yahoo,etc), unless they bought it from somewhere. In most countries you can get it from the chamber of commerce. Dun and

Most likely from scraping (crunchbase, yahoo,etc), unless they bought it from somewhere. In most countries you can get it from the chamber of commerce. Dun and Bradstreet and other similar companies. Some of these data aggregators will have partnership with other companies, and you can also (illegally) scrape it from there.