WikiSuite is especially suited to knowledge-centric organizations and offers most (80%+) of the data and information management features all organizations need. Key components include: Tiki Wiki CMS Groupware (TikiWiki), Openfire, Virtualmin and Syncthing.
Google Workspace - Google's encompassing suite of cloud-based business apps.
Quip - Quip is the modern productivity suite that simplifies your life and helps your team get work done faster.
Nextcloud - With Nextcloud enterprises host their own secure cloud solution for storage, collaboration & communication from any device, anywhere.
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
Odoo - An all-integrated business app suite to unleash your growth potential.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.