Netumo - Ensure healthy website performance, uptime, and free from vulnerabilities. Automatic checks for SSL Certificates, domains and monitor issues with your websites all from one console and get instant notifications on any issues.

ThingSpeak - Open source data platform for the Internet of Things. ThingSpeak Features

AppZero - AppZero is a monitoring and migration tool that allows users to keep track of different applications and servers in both simple and complex IT environments.

The IoT Guru - the IoT cloud backend company

RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems

IoTPlotter - IoTPlotter.com is a service which collects data from your IoT devices for long-term graph plotting and storage. It's completely free and made for the maker community.