---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-26-059713"
form_type: "8-K"
ticker: "LMB"
cik: "0001606163"
company_name: "Limbach Holdings, Inc."
filed_at: "2026-09-01T13:04:38+00:00"
generated_at: "2026-09-01T13:06:23.120752+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Limbach acquires Wisconsin MEP contractor 1901 Inc. for $63M cash/debt

## Summary
- Purchase price $63.0M at closing via cash and expanded revolving credit facility.
- Up to $6.0M performance-based earnouts payable over 2 years if targets met.
- 1901 adds ~450 employees (350+ field pros); Limbach's largest electrical operation.
- 2027 expected contribution: ~$140M revenue and ~$11M adjusted EBITDA from 1901.
- Acquisition expands Midwest footprint and adds healthcare, education, advanced manufacturing exposure.

## SEC filing metadata
- accession: 0001628280-26-059713
- form_type: 8-K
- ticker: LMB
- cik: 0001606163
- company_name: Limbach Holdings, Inc.
- filed_at: 2026-09-01T13:04:38+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1606163/000162828026059713/0001628280-26-059713-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1606163/000162828026059713/lmb-20260901.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-26-059713
- JSON: https://secwatch.observer/filing/0001628280-26-059713.json
- Plain text: https://secwatch.observer/filing/0001628280-26-059713.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.