State's Largest Foundations Still Gaining Assets by Gwen Moritz Posted 7/2/2007 12:00 am Updated 6 years ago The wealthiest nonprofit in Arkansas remains the Walton Family Foundation in Bentonville, which had assets of more than $890 million at the end of 2005. Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access articles older than 15 days. Articles newer than 15 days are not included in this offer. Purchase Now Already have archive access? Login to view this article.