AcceleratedServers: Customize 1U, 2U and 4U rackmount and tower servers and server clusters running Linux, FreeBSD or Windows.
Advanced Clustering Technologies: Advanced Clustering sells turn-key beowulf clusters with AMD or Intel processors. Configurable online ordering.
Armari Ltd: Sells rack-mountable Intel-based computers as well as workstations and servers. Product information.
Aspen Systems, Inc.: Manufacturing, design and service of HPC clusters and other high-performance systems.
Atipa: Atipa provides scalable, high performance, turnkey Alpha, AMD, and Intel-based Beowulf clusters. Product information.
Atipa Technologies: Specializes in the design and turn key installation of large computational clusters based on Intel, AMD, and Alpha processors. Information about products and online ordering available.
Carrera Computers: Pentium-based Beowulf clusters. Product specs.
hpcLine: Rackmountable clusters with Myrinet interconnects. Product information and datasheets.
Integrity Linux: Customizable Linux clusters with parallel software. Product and contact information.
Linux Computer Systems: Customizable Beowulf nodes, workstations, and servers. Product and contact information.
Linux Networx: Custom rackmountable Linux clusters with graphical management tools. Product information and company news.
Microway: Alpha, Athlon, or Pentium Linux clusters. Product and contact information.
ParTec AG: Sells high-performance clusters. Product and contact information.
Penguin Computing: Intel-based rackmountable clusters with traffic management software.
PSSC Labs: The Beowulf People: Provides custom Beowulfs and workstations. Online quote form.
RackSaver, Inc.: Specializes in Beowulf clusters with tiny footprints. Product information.
RocketCalc: Manufactures affordable personal clusters and monitoring tools. Information about products.
Scali AS: Provides scalable Linux and Solaris based cluster computer systems ranging from high performance clustering kits to turnkey supercomputers with cluster management tools. Product information.
VA Cluster Management: Cluster monitoring software. Product information, documentation, and source code available.
VA Linux Systems: ClusterCity: Rackmountable Intel-based Beowulfs with cluster management software. Product and contact information.
Western Scientific, Inc.: Provider of turnkey Beowulf computing cluster hardware for different platforms from Intel, AMD, Alpha, and HPC.