McDermott is a global engineering and construction company with a focus on delivering integrated solutions for the energy sector. The company is known for its expertise in designing and building complex offshore and onshore projects, including oil and gas facilities, petrochemical plants, and renewable energy infrastructure.

In terms of sustainability, McDermott is committed to reducing its environmental impact and supporting the transition to a low-carbon economy. The company has implemented various initiatives to enhance energy efficiency, minimize waste, and reduce greenhouse gas emissions across its operations. McDermott is also actively involved in developing sustainable energy solutions, such as offshore wind farms and carbon capture and storage technologies.

McDermott's sustainability efforts are guided by its Environmental, Social, and Governance (ESG) framework, which outlines the company's approach to responsible business practices. The company regularly publishes ESG reports to provide transparency on its sustainability performance and progress towards its goals. However, specific details on certifications or accreditations related to sustainability are not extensively available.

Overall, McDermott is making strides in integrating sustainability into its business model, although there is room for further development and disclosure in this area.