draw.io - Online diagramming application
Poka.io - Communication and training solutions for manufacturers.
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.
Khaos Control Cloud - Enterprise resource planning for small business owners
PlantUML - PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.
Realtrac - Machine Shop Software | Job Shop Software | Manufacturing ERP