Yes, it is possible to find which user in your Hubspot account has created a contact by checking property history of a client.
Infact, you can also check who were all the users which communicated with the contact. (This particular usecase was required by one of my client)
Though you can’t get an agreegate report on how many contacts were created by each user but to achieve that with Hubspot you can scrape data from your own Hubspot contacts and build a simple report in Google Sheet.
And, yes if you need help then my company rethinkux.com can help you with implementation of Hubspot and also building new Hubspot integrations if required for your usecases.
Regards
Gourav Manchanda
Owner, rethinkux.com
who created the hubspot contact?