Particle Electron - Cellular IoT development board with a simple data plan
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.
Stampd - A document blockchain stamping service
BlankPage - Stay motivated to write, and finish your story
Headspin - Test your mobile app on different global cell networks
Manuskript - Open-source tool for writers.