Dublin-based business sales tracker BizBen.com said 1,279 small and midsize businesses were sold in California in May.
Last month's total was up 11.7 percent from 1,145 transactions closed in May 2012.
Sacramento County also saw a substantial year-over-year gain, with 52 sales last month compared with 36 in May last year.
Peter Siegel, BizBen's founder and president, noted that "the boost in sales reflects improvement in (various) sectors of the economy."
Siegel also cited "growing investor confidence throughout the economy."
Call The Bee's Mark Glover, (916) 321-1184.