Limbach Holdings, Inc.

Information About Our Executive Officers

Michael M. McCann has served as the President and Chief Executive Officer and a Director of the Company since March 2023. Prior to his appointment as President and Chief Executive Officer and a Director of the Company, Mr. McCann served as the Company’s Executive Vice President and Chief Operating Officer since November 2019, after having been appointed Co-Chief Operating Officer, effective January 2019. Mr. McCann joined the Company in 2010 as Vice President and Branch Manager of Harper Limbach’s Tampa business unit. After growing the Tampa business for almost three years, Mr. McCann became President of Harper Limbach. His duties included all aspects of the Company’s construction operations, with primary responsibilities including oversight of risk management, sharing of best practices, and development of operational talent. Mr. McCann has a Bachelor of Science in Mechanical Engineering from Worcester Polytechnic Institute and a Master of Business Administration degree from Drexel University.

Jayme L. Brooks has served as the Executive Vice President and Chief Financial Officer of the Company since October 2019. Mrs. Brooks served as Executive Vice President and Chief Financial Officer of Capstone Turbine Corporation, a publicly traded manufacturer of microturbine energy systems, from April 2019 until September 2019, and as its Chief Financial Officer and Chief Accounting Officer from April 2015 to April 2019. Previously, Mrs. Books also served as Vice President of Financial Planning and Analysis, Interim Chief Accounting Officer and Director of Financial Reporting of Capstone Turbine Corporation. Previously, she served as Vice President and Controller of Computer Patent Annuities North America LLC, a company providing solutions for intellectual property management, including renewal services, software tools and portfolio management. Mrs. Brooks holds a Bachelor of Arts degree in Business Economics from the University of California at Santa Barbara and a Master of Business Administration degree from the Fuqua School of Business at Duke University. Mrs. Brooks is a Certified Public Accountant (active) licensed in California.

Jay A. Sharphas served as the Company’s Executive Vice President, Sales since January 13, 2026. Prior to this appointment, Mr. Sharp served as the Regional President of the Northeast and Midwest regions of the Company since January 2025. Previously, Mr. Sharp has served as the President of the following entities: Limbach Company LLC, Limbach Company LP, Jake Marshall, LLC and Limbach Facility & Project Solutions LLC since January 2023. Prior to his appointment as President to certain of the Company’s entities, Mr. Sharp served as the Company’s Executive Vice President, Regional Manager since March 2020, in which he had oversight for the Midwest region of the Company. Mr. Sharp also ran the Company’s Ohio business unit from August 2005 to March 2020 and served in various capacities at Limbach from 1990 to 2006. Mr. Sharp received his bachelor’s degree in 1988 from Messiah College through a partnership with Temple University in Philadelphia PA, and completed Columbia University’s Senior Executive Management program in 2013. Mr. Sharp has played an active role in the construction industry serving on the board of MCACO Board of Directors and has been a Labor Management Trustee for Local 24 from 2011 through 2021.

Nicholas S. Angerosa has served as the Company’s Executive Vice President, National Customer Solutions since January 13, 2026. Prior to his appointment, Mr. Angerosa served as the Regional President of the Southeast region of the Company since January 2025. Previously, Mr. Angerosa served as President of Harper Limbach since July 2020, which includes the following entities: Harper Limbach LLC and Harper Limbach Construction LLC. Prior to his appointment as President of Harper Limbach, Mr. Angerosa served as the Company’s Senior Vice President and Branch Manager from May 2018 to July 2020, in which he oversaw the Tampa business unit. Before joining Harper Limbach, Mr. Angerosa worked as a Project Manager and Division Manager with The Poole & Kent Company of Florida, a specialty mechanical and general contractor, from October 1996 to May 2012.

Part II