---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-022226"
form_type: "8-K"
ticker: "LMB"
cik: "0001606163"
company_name: "Limbach Holdings, Inc."
filed_at: "2025-05-05T23:59:59+00:00"
generated_at: "2026-05-22T17:28:48.517598+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Limbach Q1 earnings: record net income $10.2M, ODR revenue grows 21.7% to 67.9% of total

## Summary
- Record quarterly net income of $10.2M ($0.85 diluted EPS), up 34.6% YoY.
- Revenue $133.1M (+11.9% YoY); ODR revenue $90.4M (67.9% of total), up 21.7%.
- Adjusted EBITDA rose 26.5% to $14.9M; adjusted diluted EPS $1.12.
- Affirms 2025 guidance: revenue $610-630M, adjusted EBITDA $78-82M.
- Gross margin improved to 27.6% from 26.1% due to ODR mix shift.

## SEC filing metadata
- accession: 0001628280-25-022226
- form_type: 8-K
- ticker: LMB
- cik: 0001606163
- company_name: Limbach Holdings, Inc.
- filed_at: 2025-05-05T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1606163/000162828025022226/0001628280-25-022226-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1606163/000162828025022226/lmb-20250505.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-022226
- JSON: https://secwatch.observer/filing/0001628280-25-022226.json
- Plain text: https://secwatch.observer/filing/0001628280-25-022226.txt

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