Jack Callahan
CPA, Partner - Construction Industry Leader

With more than 35 years of experience, Jack Callahan serves as CohnReznick's Construction Industry Leader overseeing a team of 200 professionals across the United States. He has served as a trusted advisor to contractors throughout their entire lifecycle demonstrating exemplary client satisfaction building a reputation as a results-oriented leader dedicated to driving company growth and transformation. Jack and his team have worked extensively with both private developers and public agencies to develop and implement fiscal and integrity monitoring programs to successfully mitigate the costs of fraud, waste, and abuse on large development projects. Jack was the lead partner for CohnReznick on the monitoring and investigative work performed at Ground Zero and continues to spearhead the ongoing initiatives at LaGuardia and O’Hare airports. Jack has extensive knowledge, insights, and experience in accounting, corporate taxation, and business consulting matters within the construction community and values his well-earned role as trusted business advisor.

Jack joined CohnReznick in August 2005 after serving as the managing shareholder of a leading private New Jersey accounting firm. He is actively involved in all aspects of the Construction and Engineering industry and a member of numerous industry trade groups. Jack got involved early in creating a support role for Public Private Partnerships, is an active member of American Institute for the Advancement of American Infrastructure. Jack’s individual accomplishments include his status as a Mole and serving on their finance committee, role as Treasurer for ACE Mentor Program of NY, and the Minority Business Development Institute. He presents regularly at conferences and is well known as an industry thought leader presenting on webinars, publishing business articles, and providing insights on social media through various industry trade groups and firm publications.



May 20, 2020 | New Jersey Builders Association Dimensions Newsletter

Preparing for the Unthinkable: The Time to Act is Now (Page 13)


BS, St. Peter’s University

Professional Affiliations

American Institute of Certified Public Accountants

ACE Mentor Program of New York

Association for the Improvement of American Infrastructure

New Jersey State Society of Certified Public Accountants

Associated General Contractors

Construction Financial Management Association

Utility Transportation and Contractors Association

Jack Callahan

Mobile| 732-380-8685

Office | 732-380-8685

Holmdel, NJ

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