250 Companies find their subsidiaries and other domains/child companies

I am looking to find all the subsidiaries and brands for a list of 250 companies and their e-mail addresses which I will provide. I will supply the list of these accounts and you use that list to research all the companies and find their subsidiaries or companies which are owned by the parent and add the account name/website. Some of these companies will have no subsidiaries while others may have multiple companies. Your job is to go to those companies' websites and find the brands and/or subsidiaries, and report on them to me, in Excel. I will also supply an Excel spreadsheet with the data I need from each: - name of subsidiary and/or brand - URL of subsidiary and/or brand (if different than parent company) The Excel Spreadsheet will provide clear guidelines on where to place this information and a link to place proof of the company being a subsidiary. The best way to do this will be to go to the company URL (provided in the spreadsheet) and then look for: - about us - corporate information - our brands - our websites - global divisions - press releases/analyst statements ... or similar language ... EXAMPLES: No subsidiaries: [login to view URL] Lots of subsidiaries: Dover Corporation: [login to view URL] P&G: [login to view URL] Pepsico: [login to view URL] Some subsidiaries, hard to find, eventually found them in a press release: Alphabet (Google): [login to view URL] Lots of brands with their own sites: [login to view URL] You will have to be smart and figure some things out. There is no one, simple, structured way to get all this data. Any questions, pls do ask.