At the company, our main system admin brought ManageEngine SupportCenter Plus into the company at the end of 2019. I do not know the exact date because I was not part of bringing in the solution or developing it. I am just using it. We expanded use to other departments after development reached a certain point. We have only been using it for nine months, tops.  

We have been using ManageEngine for five years. 

We have been using ManageEngine Support Center Plus for about five years.

I have been using ManageEngine SupportCenter Plus for almost two years.