Brain Murmurs  
   Research and development in software for parallel computers.
   http://brainmurmurs.com/

DeVita Associates  
   Distributor of Beowulfs and custom failover cluster systems. Product information and white papers about clustering.
   http://www.devita.com/

ParTec  
   Builds parallel computing clusters from commodity hardware using a high performance communication subsystem. Information about products, downloadable manuals, research papers.
   http://www.par-tec.de/

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.
   http://www.pgroup.com/

PSP group at UT Austin  
   PSP stands for Programs, Specifications and Proofs. The emphasis of the work of our group is to derive parallel and distributed programs in a rigorous manner.
   http://www.cs.utexas.edu/users/psp/welcome.html

Midwest Technology  
   Midwest Technology provides previously owned IBM SP2 and RS/6000 systems.
   http://www.mtleasing.com/

KAI Software  
   Compilers to parallelize software using OpenMP. Product information
   http://www.kai.com

Emulex  
   Develops, markets and supports high-performance storage networking products for Intel-based server clusters.
   http://www.emulex.com/

Network Computing Services  
   Provides a variety of capabilities for its customers, including shared-computing services on some of the world's most powerful High-Performance Computer (HPC) systems available in a commercially accessible network.
   http://www.networkcs.com

Myricom  
   High-performance networking for cluster communication. Sells interconnect hardware and provides open-source message passing software. Product information, benchmarks, and links to customer research projects.
   http://www.myri.com

Southwest Parallel Software  
   SPSoft provides high-performance and high-throughput bioinformatics software solutions on general-purpose computer systems.
   http://www.spsoft.com

Pacific-Sierra Research - High Performance Group  
   Provides high performance computing products and services.
   http://www.psrv.com

Multitude  
   Designs massively parallel computers. DANCE compiler available for download.
   http://www.multitude.net/

Dolphin Interconnect  
   Scalable Coherent Interface adapter cards, bridge chips, switches, and Beowulf kits. Product information, whitepapers, benchmarks, and drivers available for download.
   http://www.dolphinics.com/

Aeroflex UTMC eCard Distributed Query Processor  
   Hardware to optimize database accesses. Product information.
   http://www.utmc.com/ecard

Pallas  
   Compilers and developers' tools for high performance and parallel computing.
   http://www.pallas.de/

Platform Computing Corporation  
   Offers distributed computing software for workload management, job scheduling, resource sharing across clusters, file transfers, and provides insight into the performance of distributed resources. Product information, events, and manuals.
   http://www.platform.com/

TurboLinux Products  
   Software to turn an existing network of computers into a cluster.
   http://www.turbolinux.com/products/index.html

Quant-x  
   Sells Alpha and Intel-based clusters, workstations, and high-performance network cards. Product information, papers, and online price quotes.
   http://www.quant-x.com

Alpha-11  
   Samsung Advanced Institute of Technology provides an Alpha Linux cluster for public research use.
   http://www.alpha11.com/