Linux kernel and open source software development and consultancy.

Linux based Hardware and software manufacturer.

Dedicated to the development of embedded systems, applications and drivers for the Linux OS.

The company behind the Wine project and creators of Crossover Plugin, enabling Windows-based plugin for Linux such as Quicktime and Shockwave Director.

International Linux software company that delivers customized solutions for business users in the server and PC markets and for embedded information appliance (IA) use.

Sells books, software, networking gear, and toys.

Multiport serial cards, routers, communication adapters, and remote access servers.

Sells preconfigured workstations. Computer repair and support services available.

Specialize in embedded Linux total solutions. Provides software and hardware system solutions to meet customers' needs.

A Red Hat variant Linux distribution, kept as up-to-date as possible. Other popular distributions and older versions also available.

Linux-compatible hardware, distributions, fuzzy penguins, applications, and training programs. International delivery available.

Alaskan Web Design/Hosting/Integration company that uses Linux internally, and offers Linux support and development, as well as Windows Client development.

Linux rack mount hardware required for applications such as Industrial PCs, RAID Enclosures, data acquisition, and process control projects.

Consulting, installation, support and computer-security services to businesses.

Linux-based computer systems, installation, migration, training, support, service, application programming, performance tuning.

Overview on many projects where IBM uses and implements Linux for its customers and also related software and documentation can be found here.

Linux, open source solutions, support, service.

Products include servers and clusters. News, documentation, product information, and event calendar.

Business and server applications from IBM. Websphere, DB2, Domino and Small Business Suite for Linux.

Products include books, applications, distributions, hardware, and merchandise.

Works with Debian GNU/Linux, firewalls, embedded Linux applications, broadband Internet.

Full Linux solutions: preconfigured systems, software, consulting. Authorized reseller of Red Hat, Turbolinux, HP products.

Linux-compatible hardware, software, support, and books.

Provides software, support, services, news to Linux market; promotes Debian GNU/Linux, home of AdminForce Remote.

UK based firm providing Linux systems, software and support to corporate and individual clients. SuSE, Red Hat, Mandrake, other distrbutions.

Advanced Linux security services for organizations worldwide.

Leader in CompactPCI, VME, industrial embedded solutions.

Philippine-based firm specializing in product development and consulting in Linux and open source.

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.

Corporation develops and supports high performance computing solutions based on Open Source systems such as Linux Beowulf clusters.

Offers training courses, technical consultation services for Linux application developers. Products for Linux platform enabling, clustering, storage and system availability markets.

Publishes full-size computer books and pocket references on Linux, Unix, Internet; and Linux Journal magazine.

Professional Linux and Unix goods, services, support, training.

Resources for computing on systems with limited memory. Online vendor of Linux distributions, application software, and Linux and DOS software collection CDs.

Privately held corporation who's primary market position is to advance the abilities and usership of PowerPC Linux.

Professional Data Center, Network Infrastructure, Security Consulting for the Greater Rochester Metro Area and beyond.

Developing a version of the Linux operating system to support performance-critical applications workloads.

Support services and software for Linux operating environment. Develops, maintains, sells SourceForge.

Distributor of commercial and GPL'd Linux/BSD distributions, games and books. Also provides custom built and preloaded Linux Workstations and Servers.

Provides Linux-based solutions, integrating systems, software and services.

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).

Consulting services, software development, Linux support and systems.