Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
MindMeister for G Suite - MindMeister lets you create, share and collaboratively work on mind maps.
Sheetgo - Connect spreadsheets. Automate your work.
Mindomo for G Suite - Mindomo Mind Mapping
Aspose.Cells for Cloud - Aspose.Cells for Cloud is a REST based API for processing spreadsheets in the cloud.
MightyCall - Virtual phone system that lets you run your business from anywhere.