4/20, Crossroads Treatment Centers-Yukon Partners: Yukon Partners, a middle-market private-equity firm, has invested in Crossroads Holdings LLC, also known as Crossroads Treatment Centers, a provider of medication-assisted treatment services.

4/23, Empyr Inc.-Augeo Affinity: Augeo Affinity Marketing, a provider of employee, member, consumer and channel partner engagement products, has acquired Empyr Inc., a card-linking platform for national brands and digital publishers.