Updated December 11, 2012

 December 2012 - this page will no longer be maintained.  See the new member page for updated information on CAs who are members of the Windows Root Certificate Program.  And fear not, I will maintain the historical content on when CAs have been added to the Program.  Stay tuned for 2013. 

Return to Microsoft Root Certificate Program Main Page


Here is a list of all member certification authorities (CAs) and the root certificates distributed via the Windows Root Certificate Program:

Member's List (All CAs)

For details of previous root updates, see:

April 2012 Root Update

March 2012 Root Update

February 2012 Root Update

November 2011 Root Update

October 2011 Root Update 

June 2011 Root Update

March 2011 Root Update

October 2010 Root Update

August 2010 Root Update

Do you see an error in any of the information above?  Contact me here, and I will investigate and correct it.  I cannot guarantee total accuracy of this data, but I will commit to correcting errors when they are pointed out to me. 

Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.