Private Cloud / Virtualization
5 providers in this category.
Private-cloud and virtualization platforms turn your own servers into a cloud: a hypervisor runs many virtual machines on one physical box, with management for clustering, high availability, and live migration. They suit homelabs, on-premises datacenters, and sovereignty-conscious teams. The field splits between free open-source platforms and commercial suites; weigh licensing, hypervisor ecosystem, and HA maturity.
Companies
Neutral ordering. Not a recommendation.
Nutanix
www.nutanix.com
Nutanix is a hyperconverged infrastructure platform that unifies compute, storage, and virtualization on commodity servers, managed through its Prism control plane.
OpenStack
www.openstack.org
OpenStack is the open-source cloud operating system for building self-hosted IaaS at datacenter scale, governed by the Open Infrastructure Foundation since its 2010 launch by NASA and Rackspace.
Proxmox VE
www.proxmox.com
Proxmox VE is an open-source server virtualization platform from Proxmox Server Solutions (Vienna, Austria) that combines KVM virtual machines and LXC containers under a single web management UI.
VMware vSphere
www.vmware.com
VMware vSphere is the enterprise-standard server virtualization suite, pairing the ESXi bare-metal hypervisor with vCenter management for clustering, vMotion live migration, DRS resource scheduling, and high availability.
XCP-ng
xcp-ng.org
XCP-ng is an open-source Xen-based hypervisor platform, created in 2018 as the community fork of Citrix XenServer and led by the French company Vates.