One Equity Partners-backed Spartronics, a provider of contract manufacturing and design services, completed the acquisition of Primus Technologies, a provider of engineering, manufacturing and testing services of circuit card assemblies and box builds for original equipment manufacturers. Financial terms were not disclosed. “The decades of precision engineering expertise Primus brings, coupled with its excellent logistic capabilities and relationships with major U.S. defense contractors strengthens Spartronics’ ability to design industry-specific solutions for a diverse range of manufacturers serving different end markets,” Chip Schorr, OEP Senior Managing Director.