Douglas Cos. Sister Firm Buys IC Bus Property for $1.8M by Lee Hogan Posted 5/19/2014 04:25 pm Updated 4 years ago Diamond State LLC, a sister company of Douglas Cos. in Conway, has purchased 17.5 acres of land from school bus manufacturer, IC Bus LLC, for $1.8 million. 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.