Michael Tiemann

Michael Tiemann is an American software developer and executive, who served as CTO at Red Hat[1] and later vice-president of open source affairs beginning in 2004.[2][3] He is also a former President of the Open Source Initiative.[4]

Biography

He earned a bachelor's degree from the Moore School of Electrical Engineering in 1986 at the University of Pennsylvania.[5]

He co-founded Cygnus Solutions in 1989[6][7] and sold it to Red Hat for $697 million in 1999.[8] His programming contributions to free software include authorship of the GNU C++ compiler and work on the GNU C compiler and the GNU Debugger.[9] Tiemann is featured in the 2001 documentary Revolution OS.[10] Opensource.com profiled him in 2014, calling him one of "open source's great explainers."[11]

He was the chief technical officer of Red Hat.[12] He served on a number of boards, including the Embedded Linux Consortium,[13] the GNOME Foundation advisory board,[14] and the board of directors of ActiveState Tool Corp.[15]

References

  1. ^ "Red Hat Names Michael Tiemann Chief Technical Officer". www.redhat.com. 2000-01-12. Retrieved 2025-10-10.
  2. ^ "Michael Tiemann - METL Advisor". www.uncsa.edu. Retrieved 2025-10-10.
  3. ^ Tiemann, Michael. "Home page for Michael Tiemann". Archived from the original on 2002-01-03. Retrieved 2015-02-21.
  4. ^ "Thank you, Michael Tiemann! | Open Source Initiative". opensource.org.
  5. ^ "Interview with Red Hat Vice President, Open Source Affairs - Michael Tiemann". www.linuxquestions.org.
  6. ^ "FORTUNE VISITS 25 COOL COMPANIES: What has the computer revolution done for us lately?". money.cnn.com. September 27, 1993. Archived from the original on 2023-08-15.
  7. ^ Tiemann, Michael (March 29, 1999). "Open Sources: Voices from the Open Source Revolution". 1-56592-582-3.
  8. ^ Staff, N. P. R. (2012-10-29). "Want To Be Rich? Be Lucky, Know The Right People". NPR. Retrieved 2025-10-10.
  9. ^ Stallman, Richard M. (February 1988). "GNUs Flashes, February 1988". GNU's Bulletin.
  10. ^ "About". Revolution OS.
  11. ^ Behrenshausen, Bryan (August 5, 2014). "How to think like open source pioneer Michael Tiemann". Opensource.com. Retrieved December 19, 2015.
  12. ^ "Red Hat Executive Team". Red Hat. Archived from the original on 2003-10-03.
  13. ^ "Red Hat CTO Michael Tiemann Appointed to Embedded Linux Consortium Board of Directors" (Press release). Red Hat. June 21, 2000.
  14. ^ Veillard, Daniel (2003-03-13). "Minutes of the GNOME Board meeting March 11 2003". foundation-announce (Mailing list). Retrieved 2015-02-21.
  15. ^ "NY VC funds ActiveState" (Press release). ActiveState. 2000-09-25. ActiveState Board Member and Red Hat CTO Michael Tiemann
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