DataDog is a startup based out of New York which secured $31 Million in series C funding. They are quickly making a name for themselves and have a truly impressive client list with the likes of Adobe, Salesforce, HP, Facebook and many others.

Opsview is a global privately held IT Systems Management software company whose core product, Opsview Enterprise was released in 2009. The company has offices in the UK and USA, boasting some 35,000 corporate clients. Their prominent clients include Cisco, MIT, Allianz, NewVoiceMedia, Active Network, and University of Surrey.

Sematext bridges the gap between performance monitoring, real user monitoring, transaction tracing, and logs. Sematext all-in-one monitoring platform gives businesses full-stack visibility by exposing logs, metrics, and traces through a single Cloud or On-Premise solution. Sematext helps smart DevOps teams move faster.

Nagios is one of the leading vendors of IT monitoring and management tools offering cloud monitoring capabilities for AWS, EC2 (Elastic Compute Cloud) and S3 (Simple Storage Service). Their products include infrastructure, server, and network monitoring solutions like Nagios XI, Nagios Log Server, and Nagios Network Analyzer.