Do you know what the licensing agreements your organization has signed say and mean? If not, you are at risk for large fines and possibly even larger legal fees. Organizations have been formed to identify companies that are not complying with licensing agreements, with software vendors for example.
So what can you do? The first thing you should have done is an audit.
An audit is the first step and has been recommended by others dealing with software licensing matters. Depending upon what the audit reveals, proper action can be taken to ensure compliance.