Sardina Systems is a cloud infrastructure software and services company serving service providers, public-sector organizations, and research institutions. Founded in 2014, it helps customers build and operate sovereign cloud environments using open-source technologies, including OpenStack, Kubernetes, and Ceph. Its flagship FishOS platform supports the infrastructure lifecycle, with automated deployment, upgrades, monitoring, workload management, billing, and day-to-day operations. FishOS Ceph provides software-defined object, block, and file storage, either independently or within the wider cloud platform. The company offers FishOS through managed or licensed deployments, with enterprise support included in its CPU-core-based licensing.

Sardina Systems also provides hosted cloud services, cloud consulting, and custom infrastructure projects. Its engineering services include architecture design, cluster deployment, performance and cost optimization, OpenStack upgrades, and migrations from VMware or legacy platforms. Customers can choose private, hybrid, or hosted cloud arrangements, including environments tailored to compliance requirements and AI workloads. Sardina Systems works with organizations across telecom, life sciences, healthcare, AI and machine learning, and government, helping teams adopt and scale open-source cloud infrastructure while reducing operational demands.