Query filter leveraging a relationship between a user and a CPT

I have a CPT called ‘Companies’ that has a bi-direction field called ‘Employee’, which is mapped a ‘Company’ user field, to associate any number of users to a company page.

Users can also publish blog posts and are their authors.

I would like to display content from the Company CPT given the association between the author of the blog post and the Company.

Is this at all possible?