Arcturus Networks: Linux-based embedded systems, real-time and high availability solutions.
ChyGwyn Limited: Linux kernel and open source software development and consultancy.
Cnetia IT Homepage: Linux based Hardware and software manufacturer.
CodeWeavers, Inc.: The company behind the Wine project and creators of Crossover Plugin, enabling Windows-based plugin for Linux such as Quicktime and Shockwave Director.
Cyclades: Multiport serial cards, routers, communication adapters, and remote access servers.
Eridani Star System: A Red Hat variant Linux distribution, kept as up-to-date as possible. Other popular distributions and older versions also available.
Everything Linux Australia: Linux-compatible hardware, distributions, fuzzy penguins, applications, and training programs. International delivery available.
General Technics Rackmount Computers: Linux rack mount hardware required for applications such as Industrial PCs, RAID Enclosures, data acquisition, and process control projects.
Guardian Digital: Consulting, installation, support and computer-security services to businesses.
I.D.E.A.L. Technology: Linux-based computer systems, installation, migration, training, support, service, application programming, performance tuning.
IBM Linux Portal - Linux at IBM: Overview on many projects where IBM uses and implements Linux for its customers and also related software and documentation can be found here.
KrystalBox Technologies, Inc.: Linux, open source solutions, support, service.
Linux and HP: Products include servers and clusters. News, documentation, product information, and event calendar.
Linux Applications and Servers: Business and server applications from IBM. Websphere, DB2, Domino and Small Business Suite for Linux.
Linux Central: Products include books, applications, distributions, hardware, and merchandise.
Linux Generation B.V.: Works with Debian GNU/Linux, firewalls, embedded Linux applications, broadband Internet.
Linux Voodoo: Linux-compatible hardware, software, support, and books.
LinuxForce, Inc.: Provides software, support, services, news to Linux market; promotes Debian GNU/Linux, home of AdminForce Remote.
LinuxIT: UK based firm providing Linux systems, software and support to corporate and individual clients. SuSE, Red Hat, Mandrake, other distributions.
QSR: Q Software Research Corp.: Philippine-based firm specializing in product development and consulting in Linux and open source.
Rainbow Cyber Services in West London: Resellers of SuSE Linux. Custom built webservers, Linux Intranet and Internet solutions. Other services include website design, the Rainbow internet cybercafe and training in website design and management.
Scyld Computing: Corporation develops and supports high performance computing solutions based on Open Source systems such as Linux Beowulf clusters.
ShaoLin Microsystems Ltd.: Offers training courses, technical consultation services for Linux application developers. Products for Linux platform enabling, clustering, storage and system availability markets.
Specialized Systems Consultants, Inc. (SSC): Publishes full-size computer books and pocket references on Linux, Unix, Internet; and Linux Journal magazine.
Starnix, Inc.: Professional Linux and Unix goods, services, support, training.
SuperAnt CD-ROMs: Resources for computing on systems with limited memory. Online vendor of Linux distributions, application software, and Linux and DOS software collection CDs.
Terra Soft Solutions: Privately held corporation who's primary market position is to advance the abilities and usership of PowerPC Linux.
Unlimited Scale, Inc.: Developing a version of the Linux operating system to support performance-critical applications workloads.
VA Software Corp.: Support services and software for Linux operating environment. Develops, maintains, sells SourceForge.
Warped Systems: Distributor of commercial and GPL'd Linux/BSD distributions, games and books. Also provides custom built and preloaded Linux Workstations and Servers.
Web Force Unlimited: Provides Linux-based solutions, integrating systems, software and services.
Wiresoft: Secure server platforms and artificial intelligence-based server management services to simplify networks, and cut maintenance, software licensing costs. Firegate is 1st Linux server OS to be self-managing, can be used by non-Linux administrators in small, mid-size businesses (SMB).
X/OS: Consulting services, software development, Linux support and systems.