| 1. Large Hackerspace Convention (LHC) | 27 August 2010 00:00:00 | 29 August 2010 00:00:00 | | |
| 1st European Summit on the Future Internet | 2 June 2010 09:30:00 | 3 June 2010 19:00:00 | | |
| 1st anniversary | | | | |
| 24 h electro for kids 2 | 15 January 2012 11:00:00 | 4 February 2012 18:00:00 | | |
| 25ième Foire de l'Etudiant | 10 November 2011 08:30:00 | 11 November 2011 18:30:00 | | |
| 26C3 | 27 December 2009 00:00:00 | 30 December 2009 00:00:00 | | |
| 26C3 Dragons Everywhere | 26 December 2009 23:00:00 | 30 December 2009 18:00:00 | | |
| 27C3 | 27 December 2010 00:00:00 | 30 December 2010 00:00:00 | | |
| 27C3 Peace Missions | 27 December 2010 11:00:00 | 29 December 2010 18:00:00 | | |
| 28C3 | 27 December 2011 | 30 December 2011 | | |
| 29C3 - Congress everywhere | 27 December 2012 | 30 December 2012 | | |
| 30C3 Congress Everywhere | 27 December 2013 | 30 December 2013 | | |
| 31C3 Congress Everywhere | 27 December 2014 | 30 December 2014 | | |
| 3d printing 101 | 13 December 2014 15:00:00 | 13 December 2014 17:00:00 | | |
| 6th FrOSCon | 20 August 2011 10:00:00 | 21 August 2011 19:00:00 | | |
| ADTrees in the forest | 15 June 2011 19:00:00 | 15 June 2011 20:00:00 | | |
| AGFeb2010 | 28 February 2010 15:00:00 | 28 February 2010 17:00:00 | | |
| Accounting and technical challenges of Bitcoin payments | 14 April 2015 19:00:00 | 14 April 2015 19:45:00 | | |
| Ada Lovelace Day | 7 October 2011 00:00:00 | 7 October 2021 23:45:00 | | |
| Alt Party | 22 September 2010 01:00:00 | 24 September 2010 01:00:00 | | |
| Anno 1900 | 24 September 2011 11:00:00 | 25 September 2011 18:00:00 | | |
| Apps Foundry Contest | 17 June 2012 19:00:00 | 19 June 2012 22:00:00 | | |
| Arduino Soldering | 15 March 2009 15:00:00 | 15 March 2009 20:00:00 | | |
| Ars Electronica 2010 | 2 September 2010 00:00:00 | 11 September 2010 00:00:00 | | |
| ArsElectronica2009 | 3 September 2009 00:00:00 | 8 September 2009 00:00:00 | | |
| Atari ST Knowhow Workshop 1 | 28 January 2012 15:00:00 | 28 January 2012 18:00:00 | | |
| Atari ST Knowhow Workshop 2 | 11 February 2012 02:00:00 | 11 February 2012 06:00:00 | | |
| Atari ST Knowhow Workshop 3 | 25 February 2012 15:00:00 | 25 February 2012 18:00:00 | | |
| Atari ST Knowhow Workshop 4 | 10 March 2012 15:00:00 | 10 March 2012 18:00:00 | | |
| Atari ST Knowhow Workshop 5 | 24 March 2012 15:00:00 | 24 March 2012 18:00:00 | | |
| Atari ST Knowhow Workshop 6 | 7 April 2012 15:00:00 | 7 April 2012 18:00:00 | | |
| Atari ST Knowhow Workshop 7 | 21 April 2012 15:00:00 | 21 April 2012 18:00:00 | | |
| BOINC2syn | | | | |
| BSDCan 2010 | 13 May 2010 00:00:00 | 14 May 2010 00:00:00 | | |
| Be e-secure: Threats, Vulnerabilities, Impacts | 14 September 2010 18:30:00 | 14 September 2010 21:30:00 | | |
| BeNeLux Bioinformatics Conference | 12 December 2011 09:00:00 | 13 December 2011 17:30:00 | | |
| Bend til it stands | 25 September 2011 00:00:00 | 15 November 2011 00:00:00 | | |
| Bend-a-thon | 15 October 2011 14:00:00 | 16 October 2011 02:00:00 | | |
| Bend-and-Blink-a-thon | 29 October 2011 14:00:00 | 29 October 2011 21:00:00 | | |
| Bike Workshop for Everyone | 6 October 2012 16:00:00 | 6 October 2012 22:00:00 | | |
| Blender 3D Basics | 4 October 2009 17:00:00 | 4 October 2009 19:30:00 | | |
| Blinkentree | | | | |
| Blinkentree DE | | | | |
| Bootstrap 2012-06 | 16 June 2012 19:00:00 | 16 June 2012 23:00:00 | | |
| Bootstrap 2012-07 | 21 July 2012 19:00:00 | 21 July 2012 23:00:00 | | |
| Bootstrap 2012-08 | 18 August 2012 19:00:00 | 18 August 2012 23:00:00 | | |
| Bootstrap 2012-09 | 15 September 2012 19:00:00 | 15 September 2012 23:30:00 | | |
| Bootstrap 2012-10 | 20 October 2012 19:00:00 | 20 October 2012 23:30:00 | | |
| Bootstrap 2012-11 | 17 November 2012 19:00:00 | 17 November 2012 23:30:00 | | |
| Bootstrap 2012-12 | 15 December 2012 21:00:00 | 15 December 2012 23:30:00 | | |
