UMLGraph - UMLGraph is a professional automated drawing tool that allows the designers the declarative specification and drawing of UML class and sequence diagram.

Apptio - Apptio is a provider of SaaS-based Technology Business Management solutions for managing businesses in the IT field.

yEd - yEd is a free desktop application to quickly create, import, edit, and automatically arrange diagrams. It runs on Windows, Mac OS X, and Unix/Linux.

Flexiant - Flexiant is a software company that gives its facilities in providing specific cloud-based systems and manages its functionalities in the best way.

draw.io - Online diagramming application

CliQr - CliQr is a cloud app management platform enabling companies to manage and secure apps onto public, private or hybrid clouds.