Search for company names feature like LinkedIn

Hi everyone,

Hi all, hope someone can help as I’m so lost and I’ve been trying to fix this for weeks :sob:.
I want to build a personal setting page including the name of the company in which users type in their company name in the search box and options similar with it appear then user can choose their company.
I have been searching crazily for API list of company names but fail to find anyone.
Any recommendations or advice on how to do it? :frowning:
Many thanks ahead.