Fast and Affordable Methods to Retrieve Toolstack Info from LinkedIn

Hi, what's the fastest way and cheapest way to get toolstack information of a "Current Company" of someone's Linkedin URL? The data points we have apart from first + last name are Linkedin URL and work email. However, the work email data point is NOT correct always because it may be outdated or it might be non-existent in some rows. So I guess Linkedin URL is the primary data point. This is our clay table: https://app.clay.com/workspaces/83295/tables/t_793Du9oUnCdU/views/gv_WJiS2wwqaQoQ