Cloud Monitoring services
2019. Splunk acquired cloud AIOps service SignalFx
Splunk, the data processing and analytics company, has acquired SignalFx for a total price of about $1.05 billion. SignalFx provides real-time cloud monitoring solutions, predictive analytics and more. The acquisition will likely make Splunk a far stronger player in the cloud space as it expands its support for cloud-native applications and the modern infrastructures and architectures those rely on. SignalFx will support Splunk's commitment to giving customers one platform that can monitor the entire enterprise application lifecycle.
2016. Rackspace added cloud optimization platform to its private cloud

Rackspace partnered with AppFormix to bring its cloud monitoring and performance optimization tools to its private OpenStack cloud. This will give Rackspace customers access to AppFormix’s real-time monitoring, analytics and optimization tools (and Rackspace’s engineers will also use these to manage cloud for their customers). For RackSpace, this is a somewhat unusual move. The company typically builds its own tools for managing the technical side of its cloud businesses (and it was the founding member of the OpenStack project, together with NASA).
2015. Hybrid cloud monitoring provider ScienceLogic got $43M

IT monitoring-specialist ScienceLogic just landed $43 million in a Series D funding round. ScienceLogic is banking on the growth of companies adopting a hybrid-cloud strategy, which means that they have both on-premise infrastructure that works in conjunction with outside cloud providers. While companies may have monitoring tools available for their existing infrastructure that can scan log files and spot problems in the data center, when it comes to seeing the big picture of how their infrastructure connects with what they may have running in the cloud, there’s not a lot out there to give them that holistic view. ScienceLogic has a console that can supposedly connect via APIs to the different monitoring tools provided by public-cloud providers like Amazon’s CloudWatch. It can siphon that data from the CloudWatch monitoring tool and then correlate it with the data its own CloudMapper tool is spooling from a company’s on-premise infrastructure and then “intelligently map out these relationships” between the two environments.
2015. Cloud monitoring service Datadog fetched $31M

Datadog, which promises to let companies see how well their various cloud deployments are performing, now has $31 million in fresh Series C funding. The company, which claims Netflix, Spotify, EA, and, Mercadolibre as customers, has 75 employees now, up from 25 last year, and plans to double or triple headcount next year. Datadog faces competitors including Boundary, Server Density and Stackdriver (which was purchased by Google last year).
2013. Splunk launches Splunk Cloud

Splunk, the leading software platform for real-time operational intelligence, announced the general availability of Splunk Cloud - a new service that delivers Splunk Enterprise in the cloud. Organizations can now access Splunk Cloud to gain visibility and operational insights into their machine-generated big data in the cloud, as well as correlate this data across their cloud and on-premises environments. With the introduction of Splunk Cloud for large-scale production environments, Splunk Storm, the cloud-based service introduced last year, will significantly expand its free developer offerings to 20GB of total storage per month. Splunk Cloud is powered by Amazon Web Services, includes access to all features of Splunk Enterprise platform including apps, APIs, alerting and role-based access controls..