As a general rule, any user can view all the inspections within his/her company.
If a company has several sub-companies, (see What is the difference between a company and a sub-company?), users can view all company inspections, in addition to the inspections from all sub-companies.
However, if the user was created within one of the sub-companies, that user can only view inspections of his/her sub-company.
If a user created within a sub-company needs to see the inspections of a limited number of other sub-companies, please contact the support team and state the list of sub-companies he should be able to access.
In case the user created in a sub-company needs to access all sub-companies, he should be moved to the main company. Please refer for further guidance: How to move users from one sub-company to another?