Security Expert needed to provide Quarterly Vulnerability Reports

We used to use Nessus to run vulnerability scans. We no longer have access to this and require someone else to run our scans.  We have five websites that the scans need to be run on.  We will need quarterly reports created, so this will be a long-term engagement.  We can do a job for each report if required, but I would appreciate it if you would remember so we can always be compliant and you will always get this job. A vulnerability scan should indicate that it is from a third party and should be simple like the one listed below.