Keap (also known as Infusionsoft by Keap)
You can select either the 'details', 'notes', or 'activity' page to pop to. This integration is cached only. Keap API has a limitation that does not allow searching by First Name. Call activity logging - Companies cannot be assigned to Tasks, therefore creating a Task for a Company will save as a Task that isn't assigned to anything.
Mandatory remote installation required.