Upcoming Events Below you will find a list of our upcoming events including networks, trainings and seminars. Please contact us if you have any questions. DMAIC Lean Six Sigma Green BeltNov. 4-8, Cedar RapidsRead more. 8D Root Cause Analysis and Corrective ActionDec. 2, Des MoinesRead more. DMAIC Lean Six Sigma Black BeltNov. 12-14 & Dec. 2-4, Cedar RapidsRead more. Managing ChangeOct. 15 or Nov. 7Read more.