Limbach Holdings, Inc. (Nasdaq: LMB) is a building systems solutions provider operating in the mechanical, electrical, and plumbing services sector. The company completed its public debut in 2016 through a merger with 1347 Capital Corp, a SPAC sponsored by Kingsway Financial Services. Limbach has since traded as an independent public company and transitioned its business mix toward higher-margin owner-direct relationships. The company filed an 8-K current report with the SEC on May 18, 2026, under accession number 0001628280-26-035982, disclosing a material event subject to the form's reporting requirements. Sign up at SpacDesk for full filing details, historical SPAC deal data, and real-time alerts on post-merger companies like Limbach Holdings.