Reality Editor - MIT's new app lets you program any object
Losant - Losant makes building connected experiences and solutions easy.
My Devices - Drag and drop IoT project builder for Raspberry Pi
Cisco Jasper - Jasper provides a SaaS IoT platform to enable companies of all sizes to launch, manage and monetize IoT services on a global scale.
PlatformIO - Next-generation IDE for IoT
Hologram.io - Cellular IoT connectivity that powers innovation