Shares of Limbach Holdings Inc (LMB) are soaring 5.12% in pre-market trading on Tuesday, following the company's impressive first-quarter earnings report released late Monday. The surge comes as the integrated building systems solutions firm significantly outperformed analyst expectations for both earnings and revenue.

Limbach reported adjusted earnings of $1.12 per diluted share for Q1, a substantial increase from $0.82 in the same period last year. This figure crushed the consensus estimate of $0.43 per share from four analysts polled by FactSet. The company's revenue also exceeded expectations, coming in at $133.1 million compared to $119 million a year earlier and surpassing the $121.1 million forecast by analysts.

Despite the strong quarterly performance, Limbach maintained its 2025 revenue guidance of $610 million to $630 million, which is in line with the current analyst consensus of $611.4 million. The company's ability to deliver results well above expectations while maintaining a conservative outlook for the full year has likely contributed to investor enthusiasm, driving the stock's pre-market rally. As the market opens, investors will be watching closely to see if Limbach can maintain this momentum throughout the trading session.