Sanity Check and Correct Lists of French Companies within Various Categories

I have an existing list of Companies that needs to be sanity checked to Ensure: 1. Companies are French (HQ in France) and 2. Within the Correct Category (Blockchain, Financial Services, Sharing Economy (Airbnb etc), Payment Services, FIntech)

Remove all redundant entries and add up to 50 additional organisations (Names) per category that fit the category.