Growing tech company Reeher has been sold to Blackbaud, a maker of nonprofit-management software, for $43 million, the companies announced Tuesday. St. Paul-based Reeher makes software that uses predictive modelling to help colleges and universities identify likely donors. The company is named for Andy Reeher, who founded the business in 2002 and leads it as CEO. In a statement, Charleston, S.C.-based Blackbaud (Nasdaq: BLKB) said the acquisition will allow it to incorporate more fundraising features...