Aaron Seigo Aaron Joseph Seigo (born 1975) is a Canadian Free Software software developer who lives in Zürich, Switzerland.
Abdullah Bin Mohammed Bin Saud Al Thani Sheikh Abdullah Bin Mohammed Bin Saud Al-Thani has been Chairman of the Board of Directors for Qatar Telecom since 2000, where he has guided the company through a significant expansion in the Mi...
Andrew S. Tanenbaum Andrew Stuart "Andy" Tanenbaum (sometimes referred to by the handle ast) (born March 16, 1944) is an American computer scientist and professor of computer science at the Vrije Universiteit...
Andrew Tridgell Andrew "Tridge" Tridgell (born 28 February 1967) is an Australian computer programmer best known as the author of and contributor to the Samba file server, and co-inventor of the rsync algorithm.
Angela Byron Angela Byron is a software developer best known for her work with Drupal, a free and open source content management system and content management framework.
Audrey Tang Audrey Tang (born April 18, 1981; formerly known as Autrijus Tang) is a Taiwanese free software programmer, who has been described as one of the "ten greats of Taiwanese computing.
Benjamin Mako Hill Benjamin Mako Hill (born December 2, 1980) is a Debian hacker, intellectual property researcher, activist and author.
Benoît Minisini Benoît Minisini is a French programmer best known for programming the Gambas graphical development environment.
Bernhard Rosenkränzer Bernhard Rosenkränzer is the founder and main developer of Ark Linux and a contributor to various other free software projects such as KDE and OpenOffice.org.
Bill Kendrick Bill Kendrick (born 4 May 1975) is an American software engineer best known for creating and maintaining Tux Paint, an open source bitmap graphics editor for children.
Bob Scheifler Robert William Scheifler (born 1954, Kirkwood, Missouri, USA) is an American computer scientist.
Bradley M. Kuhn Bradley M. Kuhn (born 1973) is a free software activist from the United States.
Bradley T. Hughes (programmer) Bradley T. Hughes, born Bradley Tyson Hughes, is the creator of the Blackbox X window manager and has contributed to the NetWM specification.
Bram Moolenaar Bram Moolenaar (born 1961, in Lisse, province of Zuid-Holland, Netherlands) is an active member of the open source software community.
Brian Behlendorf Brian Behlendorf (born March 30, 1973) is a technologist, computer programmer, and an important figure in the open-source software movement.
D. Richard Hipp Dwayne Richard Hipp (born April 9, 1961) is the architect and primary author of SQLite as well as Fossil SCM. He and his wife, Ginger G. Wyrick, currently live and work in Charlotte, North Carolina.
Damian Conway Damian Conway (born 5 October 1964) is a prominent member of the Perl community, a proponent of object-oriented programming, and the author of several books.
Damien Sandras Damien Sandras is well known in the free software community due to his work on GNOME, more specifically on Ekiga, the leading Open Source softphone for the GNU/Linux desktop.
Danese Cooper Danese Cooper (born January 19, 1959) is an American programmer, computer scientist, and an advocate of open source software.
Daniel B. Cid Daniel B. Cid is the founder and CTO of Sucuri Security LLC. He was also the lead developer of the open source OSSEC HIDS. His interests range from intrusion detection, log analysis (log-based i...
Daniel Robbins Daniel Robbins is a computer programmer and consultant best known as the founder and former chief architect of the Gentoo Linux project.
Dave Cross Dave Cross is a British technical author, known in the Perl community for his work with Perl Mongers.
David Axmark David Axmark is one of the founders of MySQL AB and a developer of the free database server, MySQL. He has been involved with MySQL development from its beginning along with the fellow co-founde...
Donald Becker Donald Becker is a developer, well known for writing many of the Ethernet drivers for the Linux operating system.
Donald Knuth Donald Ervin Knuth (born January 10, 1938) is an American computer scientist, mathematician, and Professor Emeritus at Stanford University.
Doug Turner (Mozilla) Doug Turner is the Director of Engineering at Mozilla Corporation and long-time contributor to Mozilla.
Dries Buytaert Dries Buytaert (born 19 November 1978 in Wilrijk, Antwerp, Belgium) is an open-source software programmer notable as founder and lead developer of the Drupal CMS.
Ean Schuessler Ean Schuessler is co-founder, with his brother Erik Schuessler, of Brainfood, Inc., a Dallas, Texas-based digital media consultancy.
Eric Alexander Schulman Eric Alexander Schulman is a Computer Security researcher and Free Software advocate living in Boston.
Eric Allman Eric Paul Allman (born September 2, 1955) is an American computer programmer who developed sendmail and its precursor delivermail in the late 1970s and early 1980s at UC Berkeley.
Eric S. Raymond Eric Steven Raymond (born December 4, 1957), often referred to as ESR, is an American computer programmer, author and open source software advocate.
Evan Prodromou Evan S. Prodromou (born 14 October 1968) is a software developer and free software advocate.
Fabio Paternò Fabio Paternò is Research Director and Head of the Laboratory on Human Interfaces in Information Systems at Institute of Information Science and Technologies, Consiglio Nazionale delle Ricerche ...
Federico Heinz Federico Heinz is a Latin-American programmer and Free Software advocate living in Argentina.
Felix von Leitner Felix von Leitner, nicknamed Fefe, is a German IT security expert living in Berlin.
Frank Karlitschek Frank Karlitschek (born 25 July 1973 in Reutlingen, Germany) is a German open source software developer.
Frank Warmerdam Norman Frank Warmerdam is a software developer with a focus on remote sensing, geographic information system, cartography, and development of geospatial data translators.
François Letellier François Letellier (aka FLet), born 1968, is a French proponent of free/open source software as a major means of innovation in the software industry.
Geoffrey C Fox Dr. Geoffrey Charles Fox received a Ph.D. in Theoretical Physics from Cambridge University and is now a Distinguished Professor of Informatics and Computing, and Physics at Indiana University wh...
Geoffrey C. Fox Geoffrey Charles Fox is a British-born American theoretical physicist and computer scientist.
Geoffrey Knauth Geoffrey S. Knauth is on the board of directors of Free Software Foundation and teaches Computer Science at Lycoming College.
Georg C. F. Greve Georg C. F. Greve (born 10 March 1973 in Helgoland, Germany) is a self-taught software developer, academically trained physicist and author.
Gerald Jay Sussman Gerald Jay Sussman (February 8, 1947) is the Panasonic Professor of Electrical Engineering at the Massachusetts Institute of Technology (MIT).
Gerard Beekmans Gerard Beekmans is the initiator and organizer of the Linux From Scratch (LFS) project.
Gordon Lyon Gordon Lyon is a network security expert, open source programmer, writer, and a hacker.
Greg Stein Greg Stein (born March 16, 1967, in Portland, Oregon), living in Austin, Texas, USA, is a programmer, speaker, sometime standards architect, and open-source software advocate, appearing frequen...
Guido van Rossum Guido van Rossum (born 31 January 1956) is a Dutch computer programmer who is best known as the author of the Python programming language.
Hal Abelson Harold (Hal) Abelson is a Professor of Electrical Engineering and Computer Science at MIT, a fellow of the IEEE, and a founding director of both Creative Commons and the Free Software Foundation.
Hans Peter Anvin Hans Peter Anvin, known as H. Peter Anvin, or simply Peter Anvin, or even hpa, is a Swedish computer programmer who has distinguished himself by his contributions to Free and o...
Harald Hoyer Harald Hoyer is a computer programmer and photographer, best known for developing the dracut initramfs generator and framework, the udev device manager of Linux, the systemd r...
Harri Porten Harri Porten (born 1972) is a software engineer.
Havoc Pennington Robert Sanford Havoc Pennington is an American computer engineer and entrepreneur.
Henri Bal Henri Elle Bal (born 16 April 1958) is a professor of Computer Science at the Vrije Universiteit, Amsterdam in the Netherlands.
Henry Spencer Henry Spencer (born 1955) is a Canadian computer programmer and space enthusiast.
Igor Sysoev Igor Sysoev is the creator and developer of the nginx Web server and founder of NGINX, Inc.
Ilya Zhitomirskiy Ilya Zhitomirskiy (12 October 1989 – 12 November 2011) was a Russian-American software developer and entrepreneur.
Ingo Molnár Ingo Molnár, currently employed by Red Hat, is a Hungarian Linux hacker.
James Clark (programmer) James Clark, (23 February 1964) is the author of groff and expat and has done much work with open-source software and XML. Born in London, and educated at Charterhouse and Merton College, Oxfor...
James Gosling James Gosling , OC (born May 19, 1955) is a Canadian computer scientist, best known as the father of the Java programming language.
James Turnbull James Turnbull is an Australian free software and open source author, security specialist, and software developer.
Jamie Zawinski Jamie Zawinski (born in Pittsburgh, Pennsylvania), commonly known as jwz, is an American formerly professional computer programmer responsible for significant contributions to the free sof...
Jaromil Denis Roio (also known as Jaromil) is a free software programmer, media artist and activist.
Jeff Waugh Jeff Waugh (also known as "jdub") is an Australian free software and open source software developer.
Jim Gettys Jim Gettys is an American computer programmer at Alcatel-Lucent Bell Labs, USA. Until January 2009, he was the Vice President of Software at the One Laptop per Child project, working on the soft...
Jim Hall (programmer) Jim Hall (James Hall) is a computer programmer and advocate of free software, best known for his work on FreeDOS. Hall began writing the free replacement for the MS-DOS operating system in...
Jim Jagielski Jim Jagielski (born March 11, 1961) is an American software engineer, who specialises in web and open source technologies.
John Bridges (software developer) John Bridges is the co-author of the computer program PCPaint and primary developer of the program GRASP for Microtex Industries with Doug Wolfgram.
John D. Carmack John D. Carmack (born August 20, 1970) is an American game programmer and the co-founder of id Software.
John Gilmore (activist) John Gilmore (born 1955) is one of the founders of the Electronic Frontier Foundation, the Cypherpunks mailing list, and Cygnus Solutions.
John Graham-Cumming John Graham-Cumming is a British programmer and writer best known for having originated a successful petition to the British Government asking for an apology for its persecution of Alan Turing.
John Paul Morrison John Paul Morrison is a British-born Canadian computer programmer, and the inventor of flow-based programming.
John William Horn John William Horn (born October 12, 1967) is an American entrepreneur and technologist.
Jonas Öberg Jonas Öberg (born 22 November 1977 in Sweden) is a free and open source software activist, describing himself as an instigator in the world of free, having worked with the Free Software Foundati...
Jordan Hubbard Jordan K. Hubbard (born April 8, 1963) is a long-time open source developer, authoring software such as the Ardent Window Manager and various other open source tools and libraries before finally...
Jorge Stolfi Jorge Stolfi (born São Paulo, 1950) is a full professor of computer science at the State University of Campinas, working in computer vision, image processing, splines and other function approxim...
Karl Lehenbauer Karl Lehenbauer (born April 5, 1958) was the founder of NeoSoft in the early 1990s, which was the first Internet Service Provider in the southern United States as well as the first to offer cabl...
Kay Sievers Kay Sievers is a computer programmer, best known for developing the udev device manager of Linux, systemd and the Gummiboot EFI boot loader.
Keith Bostic Keith Bostic (born July 26, 1959) is a computer programmer from the United States.
Keith Packard Keith Packard (born April 16, 1963) is a software developer, best known for his work on the X Window System.
Ken Coar Born in 1960, Ken Coar is a software developer and open development evangelist, recognised primarily for his participation in the creation of The Apache Software Foundation, and the inception of...
Ken Silverman Ken Silverman (born November 1, 1975) is a game programmer, best known for writing the Build engine used in Duke Nukem 3D, Shadow Warrior, Blood, and more than a dozen other games in...
L Peter Deutsch L Peter Deutsch or Peter Deutsch is the founder of Aladdin Enterprises and creator of Ghostscript, a free software PostScript and PDF interpreter.
L. Peter Deutsch L Peter Deutsch or Peter Deutsch (born Laurence Peter Deutsch, August 7, 1946 in Boston, Massachusetts) is the founder of Aladdin Enterprises and creator of Ghostscript, a free softw...
Larry Ewing Larry Ewing is a U.S. computer programmer who is known as the creator of the Linux mascot, Tux.
Larry Wall Larry Wall (born September 27, 1954) is a computer programmer and author, most widely known as the creator of the Perl programming language.
Lee Daniel Crocker Lee Daniel Crocker (born July 3, 1963 in Valdosta, Georgia) is an American computer programmer and poker player.
Leonard H. Tower, Jr. Leonard "Len" H. Tower Jr. (born June 17, 1949) is a free software activist and one of the founding board members of the Free Software Foundation, where he contributed to the initial releases of...
Linus Torvalds Linus Benedict Torvalds (born December 28, 1969) is a Finnish American software engineer, who was the principal force behind the development of the Linux kernel.
Loïc Dachary Loïc Dachary (born 1965) is a free software developer and activist in France, and has been active since 1987.
Lucas Nussbaum Lucas Nussbaum is a French computer science engineer and assistant professor at University of Lorraine, researcher at LORIA laboratory.
Lynne Jolitz Lynne Greer Jolitz (born June 30, 1961) is a figure in free software and founded many startups in Silicon Valley with her husband William.
Léon Bottou Léon Bottou is a researcher best known for his work in machine learning and data compression.
Maciej Stachowiak Maciej Stachowiak (born June 6, 1976) is a Polish American software developer currently employed by Apple Inc. where he is a leader of the development team responsible for the Safari web browse...
Magnus Manske Heinrich Magnus Manske (born 1974 in Cologne) is a German biochemist and developer of one of the first versions of the MediaWiki software.
Marc Fleury Marc Fleury (born 1968) is the creator of JBoss, an open-source Java application server.
Mark Spencer (computer engineer) Mark Spencer is a computer engineer and is the original author of the GTK+-based instant messaging client Gaim, the L2TP daemon l2tpd and the Cheops Network User Interface.
Markus Neteler Markus Neteler received his degree in Physical Geography and Landscape Ecology from the University of Hannover, Germany, in 1999 where he worked as a researcher and teaching assistant for two years.
Marshall Kirk McKusick Marshall Kirk McKusick (born January 19, 1954) is a computer scientist, known for his extensive work on BSD, from the 1980s to FreeBSD in the present day.
Michael Sweet (programmer) Michael Sweet is a computer scientist and is the primary developer and architect of CUPS, flPhoto, HTMLDOC, and Mini-XML. He was the original developer of the Gimp-Print software (now called Gut...
Michael Tiemann Michael Tiemann is Vice President of Open Source Affairs at Red Hat Inc, and former President of the Open Source Initiative.
Michael Widenius Ulf Michael Widenius (often called Monty), born 3 March 1962, in Helsinki, Finland, is the main author of the original version of the open-source MySQL database and a founding member of th...
Miguel de Icaza Miguel de Icaza (born c. 1972) is a Mexican free software programmer, best known for starting the GNOME and Mono projects.
Mike Cowlishaw Mike Cowlishaw is a retired IBM Fellow, a Visiting Professor at the Department of Computer Science at the University of Warwick, and is a Fellow of the Royal Academy of Engineering (roughly the ...
Moshe Bar (investor) Moshe Bar (born in Jerusalem, Israel in June 1971) is an Israeli technologist, author, investor and entrepreneur.
Mustafa Akgül Mustafa Akgül is the key figure of acceptance of Internet to large masses in Turkish.
Nathan Hurst Nathan Hurst (born 1977) is an Australian programmer.
Pablo Machón Pablo Machón is a libre/free knowledge activist, libre/free software developer and founding member and President of the Free Knowledge Foundation, an organization that promotes people's rights a...
Pamela Kyle Crossley Pamela Kyle Crossley (born 18 November 1955) is an historian of modern China, northern Asia, and global history.
Pat Villani Pasquale "Pat" J. Villani was an American computer programmer, author, and advocate of free software, best known for his creation of DOS-C, a DOS emulator written in the C language and subsequen...
Patrick Ball Patrick Ball (Born June 26, 1965) is a scientist who has spent more than twenty years conducting quantitative analysis for truth commissions, non-governmental organizations, international crimin...
Patrick Volkerding Patrick Volkerding (born October 20, 1966) is the founder and maintainer of the Slackware Linux distribution.
Paul Vixie Paul Vixie is an American Internet pioneer, the author of several RFCs and Unix software author.
Peter Eastman Peter Eastman is the lead developer of the free 3D graphics application Art of Illusion and creator of other software titles such as the interactive fiction game, Episode in the Life of an Artist.
Peter Eastman (software engineer) Peter Eastman is the lead developer of the free 3D graphics application Art of Illusion and creator of other software titles such as the interactive fiction game, Episode in the Life of an Artist.
Peter MacDonald (computer programmer) Peter MacDonald is a Canadian software engineer, best known as the creator of Softlanding Linux System, widely regarded as the first complete Linux distribution.
Philip Hazel Philip Hazel is a computer programmer best known for writing the Exim mail transport agent and the PCRE regular expression library.
Poul-Henning Kamp Poul-Henning Kamp (born 1966) is a Danish computer developer known for work on various projects.
Raph Levien Raphael Linus Levien (also known as Raph Levien) is an influential member of the free software developer community, through his creation of the Advogato virtual community and his work with...
Rasmus Lerdorf Rasmus Lerdorf (born 22 November 1968) is a Greenlandic programmer with Canadian citizenship.
Ricardo Galli Dr. Ricardo Adolfo Galli Granada, also known as gallir, is a doctor of computer science at the University of the Balearic Islands, where he teaches operating system design.
Rich Salz Rich Salz is a Principal Engineer at Akamai Technologies.
Richard Hipp D. Richard Hipp (born April 9, 1961) is the architect and primary author of SQLite as well as Fossil SCM. He and his wife, Ginger G. Wyrick, currently live and work in Charlotte, North Carolina.
Richard Stallman Richard Matthew Stallman (born March 16, 1953), often known by his initials, RMS, is an American software freedom activist and computer programmer.
Rick Adams (Internet pioneer) Richard (Rick) L. Adams, Jr. is an Internet pioneer and the founder of UUNET, which, in the mid and late 1990s, was the world's largest Internet Service Provider (ISP).
Robert Dewar Robert Berriedale Keith Dewar (born June 21, 1945, Oxford, United Kingdom) is an American computer scientist.
Roy Fielding Roy Thomas Fielding (born 1965) is an American computer scientist, one of the principal authors of the HTTP specification, an authority on computer network architecture and co-founder of the Apa...
Russ Nelson Russell "Russ" Nelson (born March 21, 1958) is an American computer programmer.
Ryan C. Gordon Ryan C. Gordon (also known as icculus) is a computer programmer and former Loki Software employee who is now responsible for icculus.org, which hosts many Loki Software projects as wel...
Ryan North Ryan M. North (born October 20, 1980) is a Canadian writer, computer programmer, and occasional songwriter who is the creator and author of Dinosaur Comics, and co-creator of Whispered Apo...
Rémy Card Rémy Card is a French software developer who is noted for his contributions to the Linux kernel.
Sam Lantinga Sam Oscar Lantinga was the lead software engineer at Blizzard Entertainment, where he is known to the community as Slouken.
Samuel J Leffler Samuel J Leffler is a computer scientist, known for his extensive work on BSD, from the 1980s to FreeBSD in the present day.
Schuyler Erle Schuyler Erle is a free software developer and activist.
Scott James Remnant Scott James Remnant (born 18 July 1980) is an open source software developer.
Sean Egan Sean Egan is a software engineer at Google, where he worked on Google Talk and is currently working on Google Maps.
Sean Hastings Sean Hastings (born 1968) is an entrepreneur, cypherpunk author, and security expert.
Shlomi Loubaton Shlomi Loubaton (date of birth unknown) (שלומי לובטון) is an Israeli Open source software developer, activist and blogger.
Simon Tatham Simon Tatham (born 3 May 1977) is an English programmer known primarily for creating and maintaining PuTTY, a free software implementation of Telnet and SSH clients for Unix and Windows API plat...
Spencer Kimball Spencer Kimball is a computer programmer most notable for his early work on the GNU Image Manipulation Program (GIMP).
Stuart Cheshire Stuart Cheshire is a Distinguished Engineer, Scientist and Technologist (DEST) at Apple.
Stuart Langridge Stuart Langridge (also known as 'Aq' or 'Zippy') is the author of two books for technical publisher SitePoint, DHTML Utopia, and Run Your Own Web Server Using Linux & Apache (with Tony S...
Tarus Balog Tarus Balog is the CEO of the OpenNMS Group.
Theo de Raadt Theo de Raadt (born May 19, 1968) is a software engineer who lives in Calgary, Alberta, Canada.
Theodore Ts'o Theodore Y. "Ted" Ts'o (born 1968) is a software developer mainly known for his contributions to the Linux kernel, in particular his contributions to file systems.
Thomas Bushnell Thomas Bushnell, BSG, formerly known as Michael Bushnell, is a software developer and Gregorian friar.
Thomas Sterling (computing) Thomas Sterling is Professor of Computer Science at Indiana University, a Faculty Associate at California Institute of Technology, and a Distinguished Visiting Scientist at Oak Ridge National La...
William Jolitz William Frederick Jolitz, commonly known as Bill Jolitz, is an American software programmer best known for developing the 386BSD operating system from 1989 to 1994 along with his wife Lynn...
Wim Taymans Wim Taymans is a software developer and Belgian national based in Barcelona, Spain.
Yann LeCun Yann LeCun is a computer science researcher with contributions in machine learning, computer vision, mobile robotics and computational neuroscience.
Yukihiro Matsumoto Yukihiro Matsumoto is a Japanese computer scientist and software programmer best known as the chief designer of the Ruby programming language and its reference implementation, Matz's Ruby Interp...
Ýmir Vigfússon Ýmir Vigfússon is an Icelandic hacker and a computer security expert.