The Top 200 List.

The given document is a list of the top 200 environmental firms ranked by their revenue in 2023. The list includes companies from different countries and highlights their areas of expertise and markets. The top three firms on the list are Veolia SA from Paris, France, AECOM from Dallas, Texas, and Larsen & Toubro Ltd. from Mumbai, India. These firms are involved in various environmental work, including hazardous waste management, air quality/clean energy, and water supply/treatment. This information can be valuable for library patrons researching environmental firms and their specialties. [Extracted from the article]