Clean Harbors reported second-quarter 2026 results with revenue increasing 12% to a record $1.74 billion and net income rising 34% to $170.5 million, or $3.22 per diluted share. Adjusted EBITDA grew 22% to $409.0 million, expanding margins by 190 basis points year-over-year. The company announced a ten-year disposal contract with an estimated value of $600 million and entered into a definitive agreement to acquire ES&H for $305 million in cash to expand its Field Services business. Management raised full-year 2026 Adjusted EBITDA guidance by $110 million to a midpoint of $1.38 billion and adjusted free cash flow guidance by $30 million to a midpoint of $550 million. Clean Harbors operates in the environmental and industrial services industry, providing hazardous waste management, emergency response, and recycling services.