Limbach Holdings Acquires Jake Marshall, LLC

Limbach Holdings Acquires 1901 Inc.

September 1, 2026

HVAC & Mechanical

Limbach Holdings acquired Madison, Wisconsin-based MEP contractor 1901 Inc. for an initial purchase price of $63 million, plus up to $6 million in performance-based earnouts. The acquisition expands Limbach’s Midwest footprint, adds MEP and related service capabilities, and establishes its largest electrical operation to date; 1901 had approximately 450 employees.

Limbach Holdings Acquires CYMCOR for $30 Million

August 14, 2026

IT Services

Limbach Holdings acquired CYMCOR, a program management and commissioning oversight firm focused on mission-critical data center infrastructure, for approximately $30 million (subject to customary post-closing adjustments). Limbach plans to use CYMCOR to move “upstream” in owners’ decision-making, driving higher-margin professional services revenue and downstream pull-through opportunities across engineering, construction, commissioning, and lifecycle services.

Limbach Holdings Acquires Pioneer Power, Inc.

July 1, 2025

HVAC & Mechanical

Limbach Holdings, Inc. (Nasdaq: LMB) acquired Pioneer Power, Inc., a full-service mechanical contractor serving the Upper Midwest, for $66.1 million in cash and borrowings. The deal expands Limbach’s footprint and industrial mechanical capabilities in the Upper Midwest and is expected to contribute approximately $120 million of annualized revenue and $10 million of adjusted EBITDA beginning in 2026.

Limbach Holdings Acquires Consolidated Mechanical (CMI) for $23M

December 2, 2024

Industrial Services

Limbach Holdings, Inc. (Nasdaq: LMB) acquired Consolidated Mechanical, Inc. (CMI) for an initial purchase price of $23 million with up to $2 million in contingent earn-outs. CMI, founded in Owensboro, Kentucky, is expected to contribute roughly $23 million of annualized revenue and $4 million of EBITDA beginning in 2025, expanding Limbach's industrial services footprint in Kentucky, Michigan, and Illinois and adding capabilities in power generation, food processing, manufacturing and metals markets.

Limbach Holdings Acquires Kent Island Mechanical

September 3, 2024

Construction

Limbach Holdings, Inc. (Nasdaq: LMB) has acquired Kent Island Mechanical, LLC (KIM) for an initial purchase price of $15 million, with up to $5 million in performance-based earn-outs. The acquisition expands Limbach's mechanical/HVAC and plumbing capabilities and Mid-Atlantic footprint, and KIM is expected to contribute about $30 million in revenue and over $4 million in EBITDA annually beginning in 2025. Founder Mark Bowen retired at closing and some KIM leadership (including Director of Operations Kyle Benjamin) will join Limbach's Mid-Atlantic leadership team.

Limbach Holdings Acquires Industrial Air (Greensboro, NC)

November 2, 2023

Industrial Services

Limbach Holdings, Inc. (Nasdaq: LMB) has acquired Industrial Air, LLC, a Greensboro-based specialty mechanical contractor, for an initial enterprise value of $13.5 million in an all-cash transaction with up to $6.5 million of contingent earn-outs. Industrial Air, founded in 1964, provides engineered air handling, air filtration and controls to industrial and textile customers and is expected to contribute roughly $30 million of revenue and $4 million of EBITDA annually; the deal expands Limbach's geographic footprint in the Carolinas and strengthens its industrial/institutional capabilities.