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Michael Widenius

Michael Widenius is the main author of the original version of the open-source MySQL database and a founding member of the MySQL AB company.

In 1985, Michael founded TCX DataKonsult, a Swedish data warehousing company, with Allan Larsson. In 1995 he began writing the first version of the MySQL database with David Axmark, released in 1996. He is the co-author of the MySQL Reference Manual, published by O’Reilly in June 2002; and in 2003 he was awarded the Finnish Software Entrepreneur of The Year prize.

Until Sun Microsystems bought MySQL in January 2008, he was the chief technical officer of MySQL AB and still one of the primary forces behind the ongoing development of MySQL.

During the 2007 MySQL Users Conference & Expo, Michael Widenius was awarded the honor of being the world’s first MySQL Fellow — the highest honor one can achieve from MySQL AB.

Michael left Sun in February of 2009 to start his own company.

Recent Milestones


Company Date Round Size Participants
RapidMiner 11/2013Series A$5M4
MoSync 9/2009Series A3



  1. German Predictive Analytics Startup Rapid-I Rebrands As RapidMiner, Takes $5M From Open Ocean, Earlybird To Tackle The U.S. Market ( [edit]
  2. MySQL founders invest in Swedish mobile tech startup Mobile Sorcery ( [edit]
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Last Edited 3/24/14

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