Shares of Montrose Environmental Group (NYSE: MEG) surged 24.06% in pre-market trading on Thursday, following the release of its exceptional second-quarter 2025 financial results and increased full-year guidance. The environmental services company significantly outperformed analyst expectations, demonstrating strong growth across all business segments.

Montrose reported quarterly earnings of $0.63 per share, dramatically beating the analyst consensus estimate of -$0.18. This represents a 215% increase from the $0.20 per share reported in the same period last year. The company's quarterly sales also impressed, coming in at $234.543 million, surpassing the analyst estimate of $188.268 million by 24.58% and marking a 35.32% year-over-year increase.

The stellar performance was driven by several factors, including a 35.3% revenue growth, significant margin expansion, and improved profitability. Notably, the company's net income swung to a positive $18.356 million, compared to a net loss in the prior year quarter. Montrose also raised its full-year 2025 guidance, increasing expected revenue to a range of $795-$835 million and adjusted EBITDA to $111-$117 million. CEO Vijay Manthripragada attributed the success to strong momentum across all three segments and highlighted the achievement of balance sheet simplification and leverage objectives six months ahead of schedule.