Ensoft, Inc. - http://www.ensoftinc.com
Eriksson Technologies - http://www.eriktech.com
Leap Software - http://www.leapsoft.com
Losch Software, LLC - http://www.loschsoft.com
Presoft, Inc. - http://www.prestress.com/presoft
StructureWorks, LLC - http://www.structureworks.net