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What is a company_id?

In LinkedIn, each company is associated with a global unique id that’s called a company_id in our API. For example, the company_id of “Apple” is 162479. It’s used some endpoints like “Search Employees”, “Search Jobs”, or “Search Posts” to filter the records by company.

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How to find it?

Simply go this free people search page, put in your target company name (i.e Apple) and you’ll see the company_id in the address bar.