Ambipar Group, a provider of integrated environmental and emergency management solutions, completed the acquisition of Witt O’Brien’s, a consultancy specialized in risk assessment and management, environmental management and emergencies and crisis response services, from Seacor, a petroleum industry company. Financial terms were not disclosed. "We are thrilled. Like Witt O’Brien’s, Ambipar is a mission-driven organization, helping companies and communities become more resilient and sustainable. Our cultures, client solutions, and business models are highly complementary. Through this combination, we will be able to broaden the support we can offer for our clients’ mission-critical operations," Tim Whipple, Witt O’Brien’s CEO.