Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.

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.

memcached - High-performance, distributed memory object caching system

Process Street - Create beautiful rich process documents in a simple to follow checklist format. Fast, free and incredibly simple to use.

Aerospike - Aerospike is a high-performing NoSQL database supporting high transaction volumes with low latency.

Pipefy - Pipefy is a process management software that empowers anyone to create and automate efficient workflows on their own without code.