1. Click Reports
  2. Click Manage Reports
  3. Click on the category you want to store the report under
  4. Click on New Report under the Task Menu
  5. Name the report
  6. Under Browse Fields, select Commonly Used Fields in the drop down menu and click on Account Name, Address, City, State, and Postal Code
  7. Select User Defined Fields: Account under Browse Fields and click on Account Type
  8. Scroll up to Group Results and select to Group by Account Type and Hide Group Totals
  9. Click Save and Run under the Task Menu
  10. Under Select Query choose your category and query
  11. At the bottom of the page choose a Delivery Option from the report format drop down box and then click Submit
The final report breaks out the accounts by their Account Types like you see below:

Report grouped by Account Type