LMB

Business Context and Reporting Period

Limbach Holdings, Inc. (LMB) is a building systems solution firm providing mechanical, electrical, and plumbing infrastructure services. The company operates in two segments: Owner Direct Relationships (ODR), focusing on maintenance and direct projects for building owners, and General Contractor Relationships (GCR)December 31, 2024.

Key Financial Metrics

Note: Available liquidity includes $44.9 million in cash and $35.8 million in available credit facility capacity.

Material Changes vs. Prior Period

• Revenue Mix Shift: ODR revenue increased 31.9% to $345.5 million (66.6% of total), while GCR revenue decreased 31.9% to $173.3 million (33.4% of total). Total revenue remained relatively flat (+0.5%) due to this strategic pivot.
• Margin Expansion: Consolidated gross margin expanded 470 basis points to 27.8%, driven by the higher-margin ODR mix and improved project selection in GCR.
• Profitability: Net income increased 48.8% year-over-year, and diluted EPS rose 46%.
• Acquisitions: The company completed two acquisitions in 2024: Kent Island Mechanical (September) and Consolidated Mechanical (December). These contributed to ODR growth but had limited revenue impact in 2024 due to timing.
• Cash Flow: Operating cash flow decreased $20.6 million to $36.8 million, primarily due to a $43.9 million cash outflow related to changes in accounts receivable timing and the resolution of prior-year claims.

Guidance, Outlook, and Risks

Management Commentary and Outlook

Management continues to prioritize the shift toward the ODR segment to improve profitability and revenue predictability. For 2025, the company aims to:

• Further improve profitability by scaling ODR operations.
• Expand margins through evolved service offerings (e.g., energy efficiency, decarbonization).
• Scale the business through strategic acquisitions.

Backlog: As of December 31, 2024, ODR backlog was $225.3 million (estimated 86% recognition in 2025), and GCR backlog was $140.0 million (estimated 72% recognition in 2025).

Risks and Contingencies

• Cost Inflation and Tariffs: New tariffs on steel and aluminum announced in February 2025 may increase material costs. While ODR contracts often allow cost pass-through, GCR fixed-price contracts face margin pressure.
• Multiemployer Pension Plans (MEPP): The company contributes to ~50 MEPPs. Some plans are underfunded ("critical" or "endangered" status), creating potential withdrawal liability risks if the company reduces participation.
• Contingent Consideration: The company has $13.2 million in earnout liabilities related to acquisitions, with $7.4 million payable in 2025. Changes in fair value of these liabilities impacted operating income by $3.8 million in 2024.
• Supply Chain and Labor: Ongoing risks include skilled labor shortages and supply chain volatility affecting project execution and costs.

Investor Verification Checklist

• ODR Margin Sustainability: Verify if the 31.2% ODR gross margin is sustainable as the segment grows and if cost pass-through mechanisms remain effective against inflation.
• Acquisition Integration: Monitor the integration and performance of Kent Island and Consolidated Mechanical to ensure they meet earnout targets and contribute to the ODR strategy.
• Working Capital Trends: Review the $11.3 million increase in accounts receivable and the $18.5 million cash use in working capital to ensure collection trends stabilize.
• MEPP Exposure: Assess the specific funding status of the "critical" pension plans the company participates in to gauge potential withdrawal liability exposure.
• Debt Covenants: Confirm continued compliance with the Second A&R Wintrust Credit Agreement covenants, particularly the senior leverage ratio and fixed charge coverage ratio.