- DeVita Associates
- Distributor of Beowulfs and custom failover cluster systems. Product information and white papers about clustering.
- Dolphin Interconnect
- Scalable Coherent Interface adapter cards, bridge chips, switches, and Beowulf kits. Product information, whitepapers, benchmarks, and drivers available for download.
- Builds parallel computing clusters from commodity hardware using a high performance communication subsystem. Information about products, downloadable manuals, research papers.
- The Portland Group
- PGI is an independent supplier of high performance scalar and parallel compilers and tools for workstations, servers, and high-performance computing systems.