Halle Capital-backed True Environmental, a provider of environmental services including consulting, engineering, and waste management, completed the acquisition of Sundance Consulting, a full-service environmental consulting firm. Financial terms were not disclosed. "Sundance has built a terrific company centered on deep employee engagement and exceptional client service within the federal sector. We look forward to working with September and the Sundance team to continue delivering best-in-class solutions to solve their clients' complex environmental challenges," Jim Stamatis, True Environmental CEO.