Linux is now more than a decade old. Throughout its history there have been many high-profile companies that have decided that Linux was the ideal operating system to handle their mission-critical computing needs. This list gets larger every day. Here are a list of some of the more notable cases of Linux use.

Industry
Company	Background
AIG Sales, South Africa	South African steel and pipe company AIG Sales migrated their DOS-based accounting system to one running Sage on Linux servers.
Amadeus Development Company	Amadeus, a travel reservations system provider, uses Linux extensively throughout their operations.
Axfood	The Scandinavian food retailer is using Red Hat Linux to power their SAP business software. The are also using the JBoss Enterprise Application Platform, also provided by Red Hat.
Banrisul	One of the largest banks in Brazil, all of Banrisul's ATM machines run the Linux operating system.
BMW	BMW uses Xen virtualization technology on Novell's SUSE Linux in their data center.
BMW Williams Formula 1	The Formula 1 team uses an Linux cluster built by Hewlett-Packard to carry out high-resolution aerodynamic modelling of its team's cars.
Continental Airlines	Continental Airlines has switched over to Linux to power their ticket-reissuing system.
Country Energy, NSW, Australia	A Linux user since 1995, Country Energy has been steadily moving more and more systems over to Linux.
Deutsche Bahn	German railway system manager Deutsche Bahn began in late 2004 to migrate its servers to Linux. The migrated systems include a Lotus Notes server, a SAP system and their web servers. Other systems will follow.
Endress+Hauser	In the summer of 2004, the sensors and instruments manufacturer migrated its SAP system on to a mainframe running Linux.
Ernie Ball Inc.	The guitar string manufacturer abandoned Microsoft and migrated its entire IT infrastructure to Linux after a highly publicized audit by the Business Software Alliance, a Microsoft-funded licensing watchdog.
Fiat	The Italian automaker uses a Linux-based system to run its European sales and support network.
Hyundai Motor Company	Hyundai uses a Linux cluster built by IBM for crash simulation tests and analysis.
LIF (Swedish Association of the Pharmaceutical Industry)	LIF uses Red Hat Linux to power their information portal where they provide information about medicines.
PayPal	The on-line payment manager runs its web presence and middleware tier on thousands of Linux servers
Pioneer Petroleum	Ontario, Canada gasoline retailer Pioneer Petroleum are migrating computers in their stations to Red Hat Linux Workstation.
Priority Healthcare Corp.	The Florida-based pharmaceutical company has migrated its infrastructure to IBM eServer xSeries servers running Red Hat Linux.
PSA Peugeot Citroën	The European automaker has a contract with Novell Inc. to migrate over 20,000 desktops and 2000 servers to SUSE Enterprise Linux.
Qantas Airways	Qantas has migrated 80% of their datacenter servers to Linux.
Sallie Mae Inc.	The student loan provider uses Linux extensively in their IT infrastructure.
Singapore Airlines	Red Hat Linux powers its KrisWorld in-flight entertainment system.
Spanair	The Spanish airline is using Red Hat Enterprise Linux in two of their major areas of operation.
Starwood Hotels & Resorts Worldwide	The owner of the Le Meridien and Sheraton hotel chains uses Linux to run their reservations system.
Statoil	Norway's largest oil company has migrated some key pieces of their IT infrastructure to Red Hat Linux.
The Chicago Mercantile Exchange	In early 2005, the Chicago Mercantile Exchange began to migrate their Sparc hardware running Sun's Solaris to commodity servers running Linux.
Thrifty Car Rental	Thrifty is running a large percentage of their IT infrastructure on Ubuntu Linux
Unilever	The Anglo-Dutch food conglomerate started a migration to open source and Linux in 2004.
Union Bank of California	The California USA based bank has migrated its IT infrastructure to Red Hat Enterprise Linux
Virgin America Airlines	Red Hat Enterprise Linux powers the airline's web presence.
Volvo	Volvo is using an IBM-built Linux cluster to process vehicle crash test data.
Welch Foods Inc.	The jam, jelly and juice maker switched to Dell servers running Oracle on Linux in early 2005

If you know of Linux deployment in the business, industrial or financial sectors that we haven't listed here, please contact the webmaster: webmaster**AT**linux.org