SmartDraw - Instead of starting with a blank screen, SmartDraw gives you the exact template you need.
Zendo - Zendo allows you to sell productized, subscription and custom services. Collaborate and collect payments. Create quotes and invoices. Eliminate multiple tools and enjoy the simplicity.
Signavio - The Signavio Process Editor was created in order to be very intuitive and easy to use.
Nextcloud Hub - On-premises, enterprise collaboration solution for documents, emails, calendars and more.
LucidChart - LucidChart is the missing link in online productivity suites. LucidChart allows users to create, collaborate on, and publish attractive flowcharts and other diagrams from a web browser.
GreenOrbit - Intranet software with everything you need, built in