Pie chart- group by cell value

Hello,


I have multiple accounts which are billed each day with different value, it looks something like this (sorry for using Google Sheets, typing from my laptop )
Screen Shot 2019-08-14 at 10.24.22 PM.png

When I try to visualize this via pie chart I get the following result (as expected):
Screen Shot 2019-08-14 at 10.29.44 PM.png

I would like to group by the account with a similar name (in my case "ARGO") so it looks something like this:
Screen Shot 2019-08-14 at 10.30.38 PM.png

How can I do this automatically, I have 10000 of rows with the same pattern, any help is very appreciated.

Thanks a lot