Quad-C completed the investment in O6 Environmental.

Quad-C, a private equity firm, completed the investment in O6 Environmental, a provider of environmental services. Financial terms were not disclosed. "We are excited to enter our next phase of growth in partnership with Quad-C. The Quad-C team has an established track record as a collaborative and value-added partner to management teams. We believe their operational expertise and deep experience within industrials and infrastructure services will be instrumental as we continue to drive growth," Dan Giesler, O6 Environmental CEO.