OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
Keeeb - Keeeb unleashes knowledge that the corporate enterprise didn't know it had. We connect existing information islands while optimizing the discovery process with a novel workflow, and automate knowledge discovery through artificial intelligence.
KeepNote - KeepNote: note-taking and organization.
Wult.io - Accessible self serve data governance
MindForger - Thinking notebook and Markdown IDE web site home page
Getodo - colorful lightweight multi-level to-do list on Android, iOS, web.