This Research Note examines Limbach Holdings Inc, a NASDAQ-listed company that offers mechanical, electrical, and plumbing services for mission-critical facilities.  We explore their financial highlights, based on their March 2026 results and investor presentation, their key vertical markets and the acquisition of Pioneer Power.  This article updates our previous coverage of the company in November 2025: Limbach Aims to Disrupt MEP Services: 2025 Analysis. Limbach Profile Limbach positions itself as a leading building systems solutions firm with expertise in mechanical, electrical, and plumbing systems (MEP), specializing in revitalizing and maintaining mission-critical systems in existing facilities. Offerings include building automation systems and energy efficiency upgrades. The firm is present in 21 US locations across 17 Metropolitan Statistical Areas with 1,500+ employees. They operate via two business segments: Owner Direct Relationships (ODR) and General Contractor Relationships (GCR). 2025 Financial Highlights Total revenue increased 24.7% to a record $646.8 million compared to $518.8 million; with organic revenue growth […]