Milwaukee-based Selzer-Ornst Construction Co. acquired Brookfield-based ABCO Building Corporation ABCO Building Corporation is a full-service, union general contractor who has been conducting business for over 49 years in the greater Milwaukee area. The company specializes in industrial, commercial and healthcare construction as well as maintenance work. “This organization has a long-standing history of providing superior … Continue reading Selzer-Ornst acquires Brookfield-based ABCO Building Corporation