Kelly A. O’Callaghan

CPA, Partner, Chief Executive Officer – CohnReznick LLP

CITP, CGMA, Partner – CohnReznick Advisory LLC

Kelly O’Callaghan serves as Chief Executive Officer of CohnReznick LLP, a licensed CPA firm providing attest services to clients. She has diversified public accounting experience with a concentration in auditing, IT audit, and accounting.

Experience and credentials

Certified Public Accountant
Previously served as Assurance Service Line Leader for Northeast Region
Engagement partner for the American Institute of Certified Public Accountants and part of the audit team since 2000
Extensive experience in planning, fieldwork, and reporting for external audit services for numerous privately held and private equity-backed clients
Previously led IT Assurance and NJ Hospitality Practices
Has directed IT audit procedures for approximately 200 financial statement audits, approximately 450 SOC 1 reviews related to employee benefit plan and financial statement audits, and approximately two dozen SOC examinations

Education

B.S., Accounting – Villanova University

Professional affiliations

American Institute of Certified Public Accountants
New Jersey Society of Certified Public Accountants
New York State Society of Certified Public Accountants
New Jersey Restaurant and Hospitality Association
Receive CohnReznick insights and event invitations on topics relevant to your business and role.
Subscribe

"CohnReznick" is the brand name under which CohnReznick LLP and CohnReznick Advisory LLC and their respective subsidiaries provide professional services. CohnReznick LLP and CohnReznick Advisory LLC (and their respective subsidiaries) practice in an alternative practice structure in accordance with the AICPA Code of Professional Conduct and applicable law, regulations, and professional standards. CohnReznick LLP is a licensed CPA firm that provides attest services to its clients. CohnReznick Advisory LLC provides tax and business consulting services to its clients. CohnReznick Advisory LLC and its subsidiaries are not licensed CPA firms.

member of nexia

CohnReznick is a member of Nexia, a leading, global network of independent accounting and consulting firms. Please see the “Member firm disclaimer (Opens a new window)” for further details.

© 2026 CohnReznick Advisory LLC, All Rights Reserved.