Riverside, a private equity investment services, completed the acquisition of LMG Holdings, a provider of ignition interlock systems used to prevent drunken driving, from Lineage Capital, a private equity firm. Financial terms were not disclosed. "We're excited to partner with the LMG management team, led by Dick Mumma. We look forward to supporting LMG's growth plans and continued focus on developing products and technology that help save lives and increase public safety," Sean Ozbolt, Riverside Managing Partner.