Morning Bro, 

related fields must have the same type :

so,

 company[name] is a Char fields 

and your company is a Selection field of other field 

not only that , but you may have multiple company  

so i think that you should compute the value of your selection field not to use the related option 

and in your compute function make sure to loop on your company List then: appened vals into your selection.

The only field that you need is the many2one from res.company, and then add that field to te view (with options="{'no_create_edit': True, 'no_open': True}")