Looks like Dominion purchased the software from Symantec.
https://freerepublic.com/focus/f-chat/4354780/posts
"The same software (or modified versions) migrated to Sequoia, then was sold to Dominion (a small Canadian company) under pressure from a U.S. Treasury/CFIUS investigation."
Interesting coincidence, wouldn't you say?
Premier Election Solutions, formerly Diebold Election Systems, Inc. (DESI),[1] was a subsidiary of Diebold that made and sold voting machines.
In 2009, it was sold to competitor ES&S. In 2010, Dominion Voting Systems purchased the primary assets of Premier, including all intellectual property, software, firmware and hardware for Premier's current and legacy optical scan, central scan, and touch screen voting systems, and all versions of the GEMS election management system from ES&S.