Limbach Holdings, Inc.: directors' dealings · United States · SEC (Form 4)

About Limbach Holdings, Inc.

Limbach Holdings, Inc. (Nasdaq: LMB) is a U.S.-listed company traded on the Nasdaq exchange in the United States and focused on mission-critical building systems. Headquartered in Warrendale, Pennsylvania, Limbach is best understood as a specialized building-systems contractor rather than a broad-based construction company. The business designs, delivers, and maintains mechanical, electrical, plumbing, and controls systems (MEPC) for complex facilities where reliability, uptime, and technical execution matter. The company describes itself as drawing on more than a century of building-systems experience. ([limbachinc.com](https://www.limbachinc.com/wp-content/uploads/2026/04/LMB-2025-Annual-Report.pdf)) Limbach’s core offerings include HVAC, plumbing, electrical, building controls, engineering, design-build services, construction, maintenance, energy audits, retrofit work, equipment replacement, and prefabrication of mechanical components. Its services are sold into commercial, institutional, and light industrial markets, and it works across new construction, renovation, and retrofit environments. The customer base includes general contractors and construction managers, as well as building owners and operators through direct owner relationships. That mix gives the company both cyclical project exposure and a more recurring service-and-maintenance profile. ([limbachinc.com](https://www.limbachinc.com/investor-relations/faq/)) From a business-model standpoint, Limbach operates in two reportable segments: Owner Direct Relationships (ODR) and General Contractor Relationships (GCR). ODR covers owner-direct projects and maintenance/service work on MEPC systems, while GCR covers new construction and renovation projects awarded by general contractors or construction managers. Management has been steadily shifting the company toward ODR, which it views as a higher-quality, more durable source of revenue. In its latest reporting, Limbach also emphasized its focus on healthcare, industrial and manufacturing, data centers, life sciences, higher education, and cultural facilities. This niche positioning is central to its competitive profile: it competes on technical depth, execution reliability, and long-term customer relationships rather than on scale alone. ([limbachinc.com](https://www.limbachinc.com/wp-content/uploads/2026/04/LMB-2025-Annual-Report.pdf)) Recent corporate developments have been constructive. In 2025, Limbach completed the acquisition of Pioneer Power, which expanded its geographic reach into the Upper Midwest and increased its exposure to industrial and manufacturing end markets. Management said the company ended 2025 with ODR representing approximately 75% of revenue, marking a key strategic milestone. In March 2026, Limbach reported record 2025 results, including record revenue, net income, and adjusted EBITDA, reflecting both organic growth and acquisition contributions. The company also approved a share repurchase program of up to $50 million in December 2025, signaling confidence in cash generation and capital allocation discipline. Looking ahead, management reaffirmed full-year 2026 revenue guidance of $730 million to $760 million and adjusted EBITDA of $90 million to $94 million. ([limbachinc.com](https://www.limbachinc.com/news-events/press-releases/limbach-holdings-inc-reports-fourth-quarter-and-full-year-2025-results/))