StoryMill - Developers and publishers of Mac, Win, and iOS productivity, home and office and writing software such as MacGourmet, Paperless and many more. Based in MN.
Affinity Publisher - Professional desktop publishing app
BlankPage - Stay motivated to write, and finish your story
Contenta Publishing Suite - Contenta Publishing Suite is an advanced-level and web-based publishing software solution offered by RWS that allows you to create good quality content and offers you optimized steps and procedures to publish the content successfully.
Manuskript - Open-source tool for writers.
RebelMouse - Publishing platform for distributed content