Prior to 2009, there's no URL tag on the bottom of the end credits, so the animated Curious George URL placed to appear. Between 2006 to 2009, a live-action SheaHomes promo appeared. From 2007 to 2013, there's a Chuck E. Cheese's funding tag (as seen on 2000s airings of Barney & Friends and Arthur, and 2000s broadcasts of Clifford the Big Red Dog) as well as from 2007 to 2009, there's an Amazon.com Grocery promo and between 2007 to 2010, the Sun-Maid promo appears.
UPDATE 4/14/19: On March 2, 2018, a YouTuber by the name of Gabe Miller Media uploaded the 2006-2013 funding credits for Curious George. The promos included are for Rainforest Cafe, Sun Maid Raisins, and Chuck E. Cheese's.
Curious George Funding Credits (2006-2013)-1
CG funding
On May 5, 2018, Rocky Stephenson uploaded the 2007-2008 funding credits as found on the 2008 DVD Curious George Takes A Vacation And Discovers New Things. It included the Amazon.com grocery promo.
Curious George Funding Credits (DVD Version - 2007-2008 - Version 2)
On July 29, 2015, Garrett Champion uploaded the original 2006 funding with the SheaHomes promo.
Curious George Funding Credits 2006