Southfield Capital-backed Protos Security, a technology-enabled security services company, completed the acquisition of Off Duty Services, a provider of off-duty police officers to the private sector nationwide. Financial terms were not disclosed. "This acquisition greatly accelerates the growth of our organization and enhances our service offering while also positioning us as the fourth largest security services provider nationally. Customers can expect business as usual, with added support for security guarding on the ODS side and off-duty police on the Protos side. We couldn't be prouder of what this combined team brings to the marketplace," Anthony Escamilla, Protos CFO.