SAS is the 2nd largest BI vendor in the world, just behind Business Objects, according to this report posted at http://www.sas.com/news/analysts/idc_bi_0607.pdf
It’s interesting to note that Business Objects growth rate slowed by half this past year (down from 14% to 7% growth/year.) SAS’s rate accelerated (up from 13 to 17%) and Microsoft (up from 25 to 28%) are the few large vendors seeing acceleration in growth rates. It’s possible SAS could take the number one spot in the next year or two