Limbach Holdings, Inc. (Nasdaq: LMB) is a building and construction sector company specializing in mechanical, electrical, and plumbing systems design, installation, and service for commercial and institutional facilities across the United States. The company became a publicly traded entity in 2016 through a merger with a special purpose acquisition company, transitioning from a privately held contractor into a full-fledged public operating company. It currently operates across two segments — General Contractor Relationships and Owner Direct Relationships — and has steadily expanded its owner-direct service mix in recent years. The September 1, 2026 Form 8-K filing, with SEC accession number 0001628280-26-059713, represents a current report disclosing a material event per standard Exchange Act obligations. Subscribers to SpacDesk can access the full filing detail, historical 8-K timeline, and contextual data for LMB — sign up at SpacDesk for complete coverage.