Acquisition of Jake Marshall, LLC

Excellent Strategic Fit QLIMBACH Geographic Proximity NY Chattanooga location provides access to markets in Southeastern Tennessee, and Northern Georgia and Alabama ✓ Leading position in a smaller regional market ✓ Serving multiple, well-funded economic sectors Tennessee maintains an attractive business environment due to low taxes, lighter regulation and affordable electric power Supports ODR Strategy ✓ A substantial portion of Marshall's existing work is ODR, with additional opportunities for expansion with TVA and other industrial and institutional customers ✓ Small average project size, and short average project duration ✓ Larger projects typically include substantial pre-fabrication scope, which serves to further reduce risk Attractive Business Model ✓ Strong local market presence and labor relationships ✓ Strong relationships with key customers in light industrial and institutional end-markets (i.e., healthcare, higher education) ✓ Scale will be impactful to consolidated results; another profit engine in the portfolio ✓ Multiple elements of the ODR model, but valued like a contractor Capability Expansion ✓ No existing Core Service capability ✓ No captive design/build or engineering capabilities ✓ Ability to leverage Limbach's Nashville healthcare presence ✓ Significant pre-fabrication capabilities can be leveraged across Limbach's branch portfolio ✓ Extensive industrial resume can be leveraged across Limbach's branch portfolio 9

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