title: Linq to entities with EF in an specific relational model
body: <p>If someone could give me an idea with it, it would really appreciate it.
  How can I get all Users (not related entities) that have records in the Connections Table and belong to a Company (Table) with an id predefined (let's say CompanyId=1), using Entity framework and linq to entities. I have defined my entities classes with foreign keys and navigation(entities) properties. I would rather lambda expressions methods.</p>
  
  <p>This is the relational model:</p>
  
  <p><a href="https://i.stack.imgur.com/ycLOS.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ycLOS.png" alt="enter image description here"></a></p>