Citrix Systems

Citrix Systems
Citrix Systems, Inc.
Type Public (NASDAQCTXS)
Industry Software
Founded 1989
Founder(s) Ed Iacobucci
Headquarters Fort Lauderdale, Florida, United States
Key people Thomas Bogan, Chairman of the Board
Mark Templeton, President & CEO
David Henshall, CFO & Senior Vice President
Products Application Delivery Industry, Virtualization Software
Revenue increase 1.87 billion USD (2010)[1]
Operating income increase 327.16 million USD (2010)[2]
Net income increase 277.07 million USD (2010)[2]
Total assets 3.75 billion USD (2011)
Total equity 2.6 billion USD (2011)
Employees 6001+ (September 2011)[2]
Citrix Systems headquarters in Fort Lauderdale
Citrix System headquarters 1991-1997

Citrix Systems, Inc. (NASDAQCTXS) is a multinational corporation founded in 1989, that provides server and desktop virtualization, networking, software-as-a-service (SaaS), and cloud computing technologies, including Xen open source products.

Citrix currently services around 230,000 organizations worldwide[3] and is based in Fort Lauderdale, Florida, in the South Florida metropolitan area, with subsidiary operations in California and Massachusetts, and additional development centers in Australia, India, and the United Kingdom.

Following the acquisition of XenSource, Inc. in October 2007, Citrix spearheads the Xen open source hypervisor project.[4]



Citrix was founded in Richardson, Texas in 1989 by former IBM developer Ed Iacobucci, with $3 million in funding.[5] Iacobucci quickly moved the company to Coral Springs, Florida since he lived there when he had worked at IBM.[5]

Citrix was originally named Citrus but changed its name after an existing company claimed trademark rights. The Citrix name is a portmanteau of Citrus and UNIX.

Many of the original founding members had participated in the IBM OS/2 project. Iacobucci's vision was to build OS/2 with multi-user support. IBM was not interested in this idea, so Iacobucci left. Iacobucci was offered a job at Microsoft as chief technical officer of its networking group but turned it down to start his own company.[5]

The company's first product was Citrix MULTIUSER, which was based on OS/2. Citrix licensed the OS/2 source code from Microsoft, bypassing IBM. Citrix hoped to capture part of the UNIX market by making it easy to deploy text-based OS/2 applications. The product failed to find a market. This was due in part to Microsoft declaring in 1991 that it was no longer going to support OS/2.[5]

Roger Roberts was appointed the CEO of Citrix in 1990. Roberts, a Texan, came from Texas Instruments.

From 1989 to 1995, the company did not turn a profit. In 1989 and 1990 there was no income at all. Between 1991 and 1993, Citrix received funding from both Intel and Microsoft as well as venture capitalists. Without the help of this funding, Citrix would not have survived.[5]

In 1993, Citrix purchased the product "Netware Access Server" from Novell. It was a remote access application built on DOS and Quarterdeck Expanded Memory Manager. It provided desktop and applications from the server to multiple users in a similar way Terminal Servers still do. Citrix developed the product further and released it as WinView. It became Citrix's first successful product.

The company went public in December 1995.[5]


Citrix' key product families are Citrix Delivery Center, Citrix Cloud Center (C3) and Citrix Online Services product families.

Citrix Delivery Center

Citrix Delivery Center, composed of XenDesktop, XenApp, XenServer and NetScaler, virtualizes servers, desktops and applications, centralizes them in the datacenter and delivers them as an on-demand service.[6]

XenDesktop is a lightweight universal virtual desktop client that enables any PC, Mac, smartphone, tablet or thin client to access corporate applications and desktops remotely.

Citrix XenApp is an on-demand application delivery solution that enables any Windows® application to be virtualized, centralized, and managed in the datacenter and instantly delivered as a service to users anywhere on any device.

XenServer is a virtual-machine monitor for x86, x86-64, Itanium and PowerPC 970 architectures. It allows several guest operating systems to execute on the same computer hardware at once, meaning a single computer can run several virtual desktops concurrently. From April 2009, Citrix has been offering its XenServer virtualization platform for free to any user for unlimited production deployment.[7]

Netscaler optimizes application availability through advanced L4-7 load balancing and traffic management in order to accelerate performance.

In January 2010 Citrix introduced Citrix Receiver, the first universal client for virtual IT service delivery [REF]. The receiver allows tablet and smartphone users to access their virtual desktop and applications from tablet and smartphone devices.[8] Citrix Receiver is built upon the Independent Computing Architecture (ICA), a Citrix-designed proprietary protocol for an application server system. The protocol lays down a specification for passing data between server and clients, but is not bound to any one platform.

Citrix Cloud Centre

Citrix OpenCloud enables enterprises to build hybrid clouds and service providers to deliver cloud solutions for running enterprise workloads. A rich, open technology platform including virtualization, networking and application delivery capabilities, coupled with innovations in federating enterprise and provider networks and identity domains, make it possible for IT organizations and service providers to create and manage secure, multi-tenant cloud environments that are built to host enterprise workloads.

Citrix Online Services

GoToMeeting is a web conferencing tool allowing up to 25 people to participate in web meetings and conferences. GoToWebinar is a web conferencing tool allowing up to 1,000 people to participate in web meetings and conferences

GoToAssist allows users to view and control a computer remotely for technical support

GoView allows users to record and share their desktop online.

Microsoft relationship

The Citrix and Microsoft relationship is based upon a 20-year alliance, which began in 1989 when Citrix licensed the OS/2 source code.

Citrix obtained a source code license to Microsoft's Windows NT 3.51. In 1995, Citrix shipped a multiuser version of Windows NT with remote access, known as WinFrame. This product was a unique offering, targeting the needs of large enterprises.

During the development of WinFrame for Windows NT 4, Microsoft decided that it did not want to license Windows NT 4 source code to Citrix. Not only that, Microsoft threatened to build its own version of WinFrame. Citrix and Microsoft entered negotiations about how best to resolve this dilemma.[5][9] After negotiations, Microsoft agreed to license Citrix technology for Windows NT Server 4.0, resulting in Windows Terminal Server Edition.[10][11] Citrix agreed not to ship a competing product but retained the right to sell an extension to Microsoft's products, initially under the name MetaFrame. This relationship continued into the Windows 2000 Server and Windows Server 2003 eras, with Citrix offering Metaframe XP and Presentation Server. On February 11, 2008, Citrix changed the name of its Presentation Server product line to XenApp.

The core technology that Microsoft did not buy was the ICA protocol. Microsoft derived the work for RDP (T.share) protocol from NetMeeting, which originally derived from a deal with PictureTel (now known as Polycom).[12]

In January 2008, Citrix announced an expanded alliance with Microsoft to deliver a set of virtualization solutions to address the desktop and server virtualization markets to ensure broad interoperability between their technologies.[13]

In February 2009, Citrix extended its collaboration with Microsoft in the server virtualization market with “Project Encore”. This was heralded by a new product, Citrix Essentials, that offers advanced management for Microsoft Windows Server 2008 Hyper-V. Joint marketing, training and channel activities were conducted with Microsoft.[14]

In July 2009, Citrix and Microsoft announced joint plans to simplify desktop computing by extending their desktop virtualization partnership.[15]

These plans included:

Corporate philanthropy

Citrix invests in an ongoing Corporate Giving Program focusing on education, economic development and technology advancement.[16]

In association with US city Fort Lauderdale, Florida and Sister Cities International, Citrix launched the prototype Cyber Sister Cities (CSC) program, with Agogo in Ghana.[17]


  • In September 1997, Citrix acquired DataPac for $5 million[18]
  • In January 1998, Citrix purchased the NTrigue product from Insignia[19]
  • In June 1998, Citrix acquired APM[20]
  • In July 1998, Citrix acquired VDOnet for $8 million[20]
  • In July 1999, Citrix acquired ViewSoft for $32 million[20][21]
  • In February 2000, Citrix acquired Innovex Group for $48.7 million[22]
  • In March 2001, Citrix acquired Sequoia Software Corporation,[23] a Columbia, MD, maker of XML-based portal software.
  • In December 2003, Citrix bought Expertcity of Santa Barbara, CA, developer of the Web-hosted portable desktop product GoToMyPC and online meeting platform GoToMeeting.[24] Expertcity became Citrix's Citrix Online division.
  • In November 2004, Citrix bought a San Jose, CA, company, Net6.[25]
  • In June 2005, Citrix acquired Netscaler,[26] a Santa Clara, CA, manufacturer of network appliances, for about $300 million in cash and stock.
  • In November 2005 Citrix bought Teros,[27] a Sunnyvale, CA, producer of web application firewalls.
  • In May 2006, Citrix acquired Reflectent,the product Spectacle was then relabeled as Citrix EdgeSight.
  • On August 7, 2006 Citrix bought San Mateo, CA, based Orbital Data.
  • In December 2006, Citrix announced an agreement to buy Ardence Inc., resulting in the product Citrix Provisioning Services.
  • In February 2007, Citrix acquired Aurema, developer of a CPU and memory management product [28], resulting in the addition of a CPU management feature to Citrix's main product XenApp.
  • In September, 2007, Citrix acquired QuickTree, a privately-held XML and Web Services Firewall company.
  • In October 2007, Citrix acquired XenSource, developer of the virtualization product XenServer that is based on the open source Xen Hypervisor.[29]
  • In May 2008, Citrix acquired the sepagoProfile product from sepago.[30]
  • In November 2008, Citrix acquired Vapps.[31]
  • In August 2010, Citrix acquired VMLogix Inc., a virtualization automation and management company.[32]
  • In February 2011, Citrix closes acquisition of Netviewer [33]
  • In 2011, Citrix acquired Ems-Cortex
  • In June 2011, Citrix acquired Kaviza, now resulting in a product called VDI-in-a-box
  • In July 2011, Citrix acquired
  • In August 2011, Citrix acquired RingCube
  • In October 2011, Citrix acquired ShareFile
  • In October 2011, Citrix acquired App-DNA


Current products

  • Citrix XenApp (formerly Citrix Presentation Server) provides application virtualization and application delivery.
  • Citrix XenDesktop[34] (Desktop Virtualization, VDI)
  • Citrix XenServer provides server platform virtualization.
  • XenApp Fundamentals
  • NetScaler (Application Optimization, Application Delivery Networking, Load Balancing, Web Application Acceleration, Application Firewall)
  • Workflow Studio (Orchestrates communications between products, IT process automation)
  • Citrix Access Gateway provides secure remote access to virtual desktops and applications.
  • Advanced Access Control is an add-on for Citrix Access Gateway that provides additional control of permissions for users.
  • Password Manager (Application Security, Single Sign-on)
  • EdgeSight (End User Experience Monitoring)
  • Branch Repeater (formerly WANScaler) optimizes application delivery to branch office users (see WAN optimization).
  • Provisioning Server delivers Desktop workloads to physical and virtual computers.
  • EasyCall integrates voice and click-to-call into any application.
  • GoToMeeting
  • 'GoToWebinar'
  • GoToAssist
  • GoToMyPC

Discontinued products

  • WinFrame
  • MultiWin
  • Citrix MULTIUSER (Based on OS/2 1.x)
  • Citrix WinView (Based on OS/2 2.x)
  • Citrix VideoFrame
  • Citrix NFuse Elite 1.0
  • Citrix Extranet
  • Citrix XPS Portal 3.5.1
  • Citrix MetaFrame Secure Access Manager
  • Citrix MetaFrame XP
  • Application Firewall (Web Application Security, merged into NetScaler)


  1. ^ "Citrix Reports 2010 Fourth Quarter and Fiscal Year Financial Results". Retrieved 2011-03-21. 
  2. ^ a b c "CTXS - Citrix Systems, Inc. - Google Finance". Retrieved 2010-05-04. 
  3. ^ [1] "Citrix company profile" Reuters
  4. ^ [2] "Citrix Unveils End-to-End Virtualization Strategy"
  5. ^ a b c d e f g NetIndustries (2002). "Citrix Systems, Inc. - Company Profile, Information, Business Description, History, Background Information on Citrix Systems, Inc.". NetIndustries. 
  6. ^ Citrix Systems (2010). "Products and solutions". Citrix. Retrieved 2010-05-04. 
  7. ^ James Niccolai (2009). "Citrix makes XenServer free". TechWorld. 
  8. ^ Zack Stern (2009). "Access Server-Hosted Windows Applications Anywhere". PCWorld. 
  9. ^ Maney, Kevin (June 11, 1997). "Tiny tech firm does the unthinkable". USA Today (USA Today). 
  10. ^ Microsoft (1997). "Microsoft and Citrix Sign Technology Cross-Licensing and Development Agreement". Microsoft PressPass - Information for Journalists. Microsoft. Retrieved 2008-10-24. 
  11. ^ Jim Freer (1997-06-23). "Citrix rebounds -- after a close call with Bill Gates". South Florida Business Journal (American City Business Journals). Retrieved 2008-10-24. 
  12. ^ (2005). "Video Conferencing History". Video Conferencing History. Retrieved 2008-10-23. 
  13. ^ Microsoft (21 January 2008). "Microsoft Announces Vision and Strategy to Accelerate Virtualization Adoption". Retrieved 4 May 2010. 
  14. ^ Kusnetzky, Dan (23 February 2009). "Citrix launches a free version of XenServer and Citrix Essentials". ZDNet. 
  15. ^ Prickett Morgan, Timothy (13 July 2009). "Microsoft and Citrix mix 'n' match fake desktops". The Register. 
  16. ^ " - reaching out to the community". 
  17. ^ "Citrix, Ghana and Honey Project". YouTube. 14 December 2007. 
  18. ^ "Citrix to Acquire DataPac Australasia; Acquisition toAccelerate Citrix Presence in High-Growth Asia-PacificMarket.". Business Wire. 1997. Retrieved 2008-10-24. 
  19. ^ Clifford Colby (1998). "Insignia sells off NTrigue". MacWeek (MacWeek).;col1. Retrieved 2008-11-05. 
  20. ^ a b c SEC (1999). "Citrix Systems Inc 10-Q for 9/30/99". SEC. Retrieved 2008-10-28. 
  21. ^ Tony Smith (July 13, 1999). "Citrix buys ViewSoft". The Register. 
  22. ^ Laura Rohde (February 17, 2000). "Citrix acquires Innovex for $47.8 million". InfoWorld. 
  23. ^ Darryl K. Taft (Mar 21, 2001). "Citrix Agrees To Buy Sequoia For $185 Million". United Business Media LLC, ChannelWeb (CRN). 
  24. ^ Stacy Cowley (December 18, 2003). "Citrix buys GoToMyPC maker for $225 million". NetworkWorld, IDG News Service. 
  25. ^ Paul Roberts (Nov 23, 2004). "Citrix buying VPN company Net6 for $50 million". NetworkWorld, IDG News Service. 
  26. ^ Stacy Cowley (Jun 6, 2005). "Gaining speed, Citrix buys NetScaler". NetworkWorld, IDG News Service. 
  27. ^ Paula Rooney (Nov 18, 2005). "Teros Buy Gives Citrix VARs More Firepower". CRN. 
  28. ^ "Welcome to the Aurema Resource Site". 
  29. ^ Citrix (Aug 15, 2007). "Citrix To Acquire Virtualization Leader XenSource". 
  30. ^ Sepago (2008). "sepago sells user profile management to Citrix". Sepago. Retrieved 2008-11-04. [dead link]
  31. ^ "Citrix Systems buys Vapps Inc. for $2.26 million". 
  32. ^ "Citrix acquires VMLogix, expands OpenCloud platform". 
  33. ^ "Citrix Closes Acquisition of Netviewer". 
  34. ^ [3] "Products and solutions"

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  • Citrix — Systems Citrix Systems (NASDAQ : CTXS) est une société de haute technologie américaine basée à Fort Lauderdale, Floride, avec des filiales importantes au Royaume Uni et en Australie. Citrix était initialement uniquement éditeur de… …   Wikipédia en Français

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