Oaktree Capital-backed Montrose Environmental, an environmental services provider, agreed to acquire CTEH, an Arkansas-based scientific consulting firm that specializes in emergency preparedness, response and recovery. Financial terms were not disclosed. “For nearly 25 years, CTEH has built a reputation for providing the reliable science, timely information and advice needed to help safeguard workers, communities and the environment. A Montrose partnership is an exciting evolution in our company’s future, which will allow us to further expand our team of internationally-recognized experts to offer an unprecedented breadth and scope of services,” Phil Goad, CTEH Co-founder and CEO.