eSpline partners with CWG in many ways. We host and support the CWG SAP Sandbox and the CWG Sandbox was iniitiated by Daniel Naus while he was President of the CWG in 2007 - 2008. There are now hundreds registered users of the SAP CWG Sandbox. More information on the Sandbox...
Don Cochran, an eSpline partner has been a member of the CWG Board of Directors for three years and served as the Vice President in
2009 - 2010 and as the President in 2010 - 2011. He has initiated the Membership, Marketing, SIG/Focus Group, Community, and Chapter Committees and encouraged the concept of Chapters with 13 new CWG Chapters. Don is now the Past President of the CWG. 
eSpline is a CWG Conference Gold Sponsor since 2008, beginning with the European CWG Conference in Berlin and continuing through the most recent conference in Marco Island, FL. eSpline has offered Basic and Advanced VC Modeling Workshops following the CWG Conference since 2007 and added a IPC 5.0
Technical Workshop in 2008. These are 2-Day workshops for CWG Conference attendees offered at a low conference rate and the content units are taken from the 5-Day in-house workshops. Each workshop has exercises so that each attendee takes away a better understanding of the VC capability. More information on CWG Training....
What is the relationship between eSpline and CWG?