ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Kissflow - Kissflow is a workflow tool & business process workflow management software to automate your workflow process. Rated #1 cloud workflow software in Google Apps Marketplace.
Apache Airflow - Airflow is a platform to programmaticaly author, schedule and monitor data pipelines.
Nintex - Cloud-based digital workflow management automation platform
Pushwoosh - Mobile-inspired customer engagement platform for high achievers
ProcessMaker - ProcessMaker is an easy to use BPM and workflow software solution. It is used to design, automate, and deploy business processes of any kind.