How to view open and closed activities of a company?
To view activities related to a company
1. Open the Bigin app on your iPad.
2. Navigate to the Contacts 
module.
3. Switch to the Companies tab.
4. Select the desired company record.
5. Switch to the Related tab.
The company's list of open activities can be found under "Open Activities", and the list of closed activities can be found under "Closed Activities".