Under "My Organizations" > "Contacts and Organizations" you will find all linked contacts and organizations of your company.

Here we distinguish between "Contacts" (1.) & "Organizations" (2.). Further details:

3. Advanced search to search contacts or organizations with tag filters.
4. Clicking on "Add contact" opens another mask to fill in the details.

5. Under "Organization" > "Add Organization" a window opens to enter the company name.
6. You can enter further company details by clicking on the edit button of the organization.