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Here are 1-2 brief analogies for Limbach (LMB):

• They're like an Otis Elevator, but for a building's entire internal network of HVAC, plumbing, electrical, and control systems, handling everything from design to long-term maintenance.

• Imagine a Trane or Carrier, but expanded to design, install, and maintain *all* major internal building systems – HVAC, plumbing, electrical, and controls.

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• Integrated Building Systems Solutions: Provides design, prefabrication, installation, management, and maintenance for mechanical, electrical, plumbing, control, and HVAC systems.
• Mechanical Construction: Offers specialized construction services for mechanical building components as part of its facility services.
• HVAC Service and Maintenance: Delivers ongoing service, maintenance, and repair for heating, ventilation, and air-conditioning systems.
• Energy Audits and Retrofits: Conducts evaluations to identify energy-saving opportunities and implements retrofit solutions for improved efficiency.
• Engineering and Design-Build Services: Provides comprehensive engineering and design capabilities, from initial concept to project completion.
• Offsite/Prefabrication Construction: Utilizes prefabrication and offsite construction methods to optimize project delivery and quality.

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Limbach (LMB) primarily serves a diverse range of institutional and commercial clients. The provided background description does not list specific names of customer companies or their symbols.

However, it identifies the following major categories of organizations and facilities that it serves:

• Healthcare and Education: This includes research, acute care, and inpatient hospitals, as well as public and private colleges, universities, research centers, and K-12 facilities.
• Commercial and Entertainment: This category encompasses sports arenas, entertainment facilities, amusement rides, hotels, resorts, office buildings, and other commercial structures, including data centers.
• Infrastructure and Industrial: Limbach also serves passenger terminals and maintenance facilities for rail and airports, various government facilities (federal, state, and local agencies), and industrial manufacturing facilities.

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Mike McCann, President and Chief Executive Officer

Mike McCann serves as the President and Chief Executive Officer of Limbach Holdings, Inc.. He was noted as holding this position as of January 2026.

Jayme Brooks, Executive Vice President and Chief Financial Officer

Jayme Brooks joined Limbach as Executive Vice President and Chief Financial Officer, effective October 1, 2019, reporting directly to the CEO. Prior to Limbach, Ms. Brooks spent 14 years at Capstone Turbine Corp., where her roles included Executive Vice President and Chief Financial Officer, Chief Financial Officer and Chief Accounting Officer, Vice President of Finance and Chief Accounting Officer, Vice President of Financial Planning and Analysis, and Director of Financial Reporting. Earlier in her career, she was Vice President and Controller of Computer Patent Annuities North America LLC. Ms. Brooks is a Certified Public Accountant (active) licensed in California. She has extensive experience in cash optimization, controlling expenses, and leading efforts to raise capital. At Limbach, she has been instrumental in fortifying the balance sheet as a competitive advantage and integrating newly acquired companies into Limbach's systems and processes.

Nick Angerosa, Executive Vice President, National Customer Solutions

Nick Angerosa was appointed Executive Vice President, National Customer Solutions, effective January 13, 2026. He has been with Limbach for over 13 years and most recently served as President of the Southeast Region. In his current role, he is responsible for leading the company's strategy to support national owner-direct customers across key vertical markets.

Jay Sharp, Executive Vice President, Sales

Jay Sharp's appointment as Executive Vice President, Sales, was effective January 13, 2026. He brings 36 years of experience at Limbach, having most recently served as President of the Midwest and Northeast Regions. He oversees the company's overall sales strategy and growth execution.

Scott Wright, Executive Vice President - Legal & Risk Management

Scott Wright was promoted to Executive Vice President - Legal & Risk Management in July 2023. He joined Limbach in 2006 and has served as general counsel since 2012. Mr. Wright leads the internal Legal and Risk Management Team and is responsible for guiding, implementing, and managing regulatory and policy matters for the public company.

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The key risks to Limbach Holdings, Inc. (LMB) primarily revolve around its growth strategy, operational challenges, and the competitive landscape of its industry.

1. Acquisition Integration Challenges: A significant portion of Limbach's growth strategy relies on external growth through acquisitions. The successful integration of these acquired businesses presents a key risk, as flawless execution is not guaranteed and can impact margins, as noted in recent financial periods.
2. Skilled Labor Shortages and Supply Chain Disruptions: Limbach's operations are vulnerable to skilled labor shortages, which can put pressure on profit margins. Additionally, the company is susceptible to fluctuations in material and equipment costs, inflationary pressures, and broader supply chain disruptions. These factors can affect profitability, particularly for fixed-price projects, and impact project timelines.
3. Intense Competition: Limbach operates in a highly competitive and fragmented industry. This environment means that price often plays a critical role in contract awards, posing a continuous challenge to securing new business and maintaining profitability.

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Limbach Holdings, Inc. (LMB) operates in several key addressable markets within the United States and North America, encompassing mechanical, electrical, and plumbing (MEP) services, HVAC systems and services, facility management, and building automation systems.

Addressable Markets for Limbach Holdings, Inc. (LMB)

Mechanical, Electrical, and Plumbing (MEP) Services

• The North America mechanical, electrical, and plumbing service market was estimated at approximately USD 31.35 billion in 2023. The U.S. held a significant share of 77.5% of this market in 2023.
• Another estimate for the United States MEP Services Market indicates a value of USD 34.90 billion in 2025, projected to reach USD 37 billion in 2026. Additionally, the U.S. MEP Services Market was worth USD 34.61 billion in 2026 and is forecast to grow to USD 47.05 billion by 2031.

HVAC Systems and Services

• The U.S. HVAC systems market size was valued at approximately USD 29.95 billion in 2024. Other estimates place the U.S. HVAC systems market size at USD 31.71 billion in 2025, with a projection to reach USD 54.02 billion by 2033. Another source indicates a value of USD 62 billion for the U.S. HVAC Systems Market based on a five-year historical analysis.
• For HVAC services specifically, the U.S. market was valued at USD 17.93 billion in 2025 and is estimated to grow to USD 25.35 billion by 2031.
• The broader North America HVAC system market size was valued at USD 49.10 billion in 2024 and is projected to grow to USD 75.75 billion by 2032, with the U.S. holding the largest share within this region.

Electrical Services and Construction

• The U.S. electrical services market was valued at USD 163.9 billion in 2024 and is expected to reach USD 294.6 billion by 2034. The electrical construction segment alone generated USD 115 billion in 2024.
• The U.S. electrical contractors market size was valued at USD 237.59 billion in 2023 and is expected to reach USD 256.65 billion by 2029.

Plumbing Services and Components

• The North America plumbing fixtures market size was valued at USD 29.15 billion in 2024, with the U.S. accounting for a dominant 69.8% revenue share in this region in 2024.
• North America's plumbing components market, which includes plumbing services, was valued at approximately USD 38.3 billion in 2025.

Facility Management and Maintenance Services

• The United States facility management market was valued at USD 365.93 billion in 2025 and is projected to reach USD 434.16 billion by 2031. Another estimate places the U.S. Facility Management market size at USD 300.46 billion in 2025, reaching USD 403.42 billion by 2030.
• The U.S. Building Maintenance Services Market was valued at USD 1.4 billion in 2024.
• The North America commercial facility maintenance market was estimated at USD 153.60 billion in 2023, with the U.S. holding the largest revenue share of 77.5% in 2023.
• The global facility management services market was valued at USD 1.75 trillion in 2024, and North America, led by the U.S., held the largest revenue share of 34.6%.

Building Automation and Control Systems

• The North America building automation systems market reached USD 76.57 billion in 2026, with the United States capturing a 78.23% revenue share in 2025.
• The US Building Automation System Market is projected to grow from USD 20.59 billion in 2024 to USD 43.32 billion by 2035.
• North America accounts for approximately 37% of the global Building Management System Market, which was valued at USD 23.19 billion in 2025. The global building management systems market size was estimated at USD 20.25 billion in 2024.

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Expected Drivers of Future Revenue Growth for Limbach Holdings, Inc. (LMB)

• Strategic Shift to Owner Direct Relationships (ODR): Limbach is intentionally transitioning its business mix by scaling down its General Contractor Relationships (GCR) segment and prioritizing Owner Direct Relationships (ODR). This strategic shift is consistently highlighted as a primary driver for both revenue growth and margin expansion. ODR revenue has shown consistent growth and represents an increasing percentage of the company's total revenue.
• Strategic Acquisitions: The company's growth strategy includes a disciplined approach to mergers and acquisitions, encompassing "Tuck-In" and "Expansion" acquisitions. These acquisitions are designed to enhance scale and introduce Limbach to new strategic markets. Recent acquisitions, such as Pioneer Power, have been noted for contributing to overall revenue growth.
• Expansion of Service Offerings and Evolved Customer Solutions: Limbach aims to expand its revenue by deepening existing customer relationships through the provision of evolved service offerings. This includes extending its expertise beyond traditional mechanical, electrical, and plumbing (MEP) systems to deliver comprehensive, turnkey building system solutions. The focus is on optimizing existing buildings for sustainability and cost efficiency, encompassing services like on-demand support, maintenance, critical system repairs, equipment upgrades, and data-driven solutions.
• Growth in Key Vertical Markets, particularly Data Centers: Limbach is focused on mission-critical markets that exhibit durable demand. These key verticals include healthcare, industrial and manufacturing, life sciences, higher education, cultural and entertainment, and notably, data centers. The data center vertical has been specifically identified by management as a significant area for future growth.

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Share Repurchases

• On December 15, 2025, Limbach's board of directors authorized a share repurchase program, allowing for the purchase of up to $50.0 million of its common stock through December 15, 2027.
• This authorization represents approximately 5.4% of the company's market capitalization at the time it was approved.
• The program is intended to provide flexibility for opportunistic repurchases and help manage potential dilution from incentive compensation programs.

Share Issuance

• The number of outstanding shares for Limbach Holdings has increased over the past few years, reaching 11,626,578 as of February 2026.
• This figure represents an increase from 10.3 million shares in 2021.
• Specifically, shares outstanding were 10.3 million in 2021, 10.41 million in 2022, 10.96 million in 2023, 11.27 million in 2024, and 11.62 million in 2025.

Outbound Investments

• Limbach made strategic acquisitions, including Kent Island Mechanical in Q3 2024 for $13.4 million.
• The company also acquired Consolidated Mechanical in Q4 2024 for $23.2 million.
• On July 1, 2025, Limbach acquired Pioneer Power, Inc. for an initial cash consideration of $66.1 million.

Capital Expenditures

• Limbach invested $251,000 in capital expenditures during the fourth quarter of 2025.
• In the first quarter of 2025, the company invested $2 million in its climate control rental equipment fleet.