Raintank, an open-source software company, embraces an OpenSaaS revenue model, combining optional hosted services with its free downloadable software, such as Grafana. While open-source distribution can complicate user identification, it provides unparalleled outreach opportunities. The company focuses on improving user engagement, often discovering usage through indirect channels like tweets or blog posts. A recent highlight for Raintank was noticing Grafana being utilized at SpaceX's Launch Control Center during a Falcon 9 launch, underscoring the software's value and impact within high-profile applications.