Limbach Holdings, Inc. is a building systems solutions company. The Company partners with the owners and facilities managers who have mission-critical mechanical, electrical, and plumbing infrastructure. The Company operates in two segments: Owner Direct Relationships (ODR) and General Contractor Relationships (GCR). Through the ODR segment, the Company performs owner direct projects and/or provides maintenance or service primarily on mechanical, plumbing or electrical systems, building controls and specialty contracting projects to existing buildings direct to, or assigned by, building owners or property managers. The GCR segment manages new construction or renovation projects that involve primarily mechanical, electrical, and/or plumbing (MEP) services awarded to the Company by general contractors or construction managers. The Company works with six vertical markets: healthcare, industrial and manufacturing, data centers, life science, higher education and cultural and entertainment.