Bosch IoT Suite - Bosch IoT Suite provides solutions to realize innovative business models in the Internet of Things and cross-domain applications.
ThingSpeak - Open source data platform for the Internet of Things. ThingSpeak Features
EMnify - EMnify helps to connect, manage and control M2M and IoT devices and services on a global basis.
Azure IoT Hub - Manage billions of IoT devices with Azure IoT Hub, a cloud platform that lets you easily connect, monitor, provision, and configure IoT devices.
Hologram.io - Cellular IoT connectivity that powers innovation
AWS IoT Analytics - IoT Management