Crest Rock Partners, a Denver-based private equity firm investing in lower middle market software, technology, services and manufacturing businesses, completed the investment in Lumin8 Transportation Technologies, a provider of traffic and intelligent transportation systems. Financial terms were not disclosed. "We are thrilled to partner with Lumin8 through their next phase of growth. The Lumin8 team has done a tremendous job growing their individual businesses by consistently executing for their customers and by taking care of their employees. The combined company will benefit significantly from shared resources and expertise, which should catalyze further geographic expansion. We are excited to help the Lumin8 team take on what we believe to be an incredible opportunity in the US traffic and ITS markets," Steve Johnson, Crest Rock Partner.