Loader.io - Loader.io is a simple cloud-based load testing service
Particle Electron - Cellular IoT development board with a simple data plan
WebLOAD - WebLOAD - The most flexible and cost effective software for enterprise load, stress and performance testing, integrated with DevOps processes. Click for details
Stampd - A document blockchain stamping service
k6 Cloud - Managed load testing service built on top of the popular open-source project k6.
Headspin - Test your mobile app on different global cell networks