Office Managing Partner
Tax & Business
About Carolyn
Carolyn Mazzenga is the office managing partner in Melville, New York, responsible for overseeing the growth of Marcum’s Long Island operations. She also heads the Long Island tax department and serves on the Firm’s Executive Committee. A trusted business advisor, she assists clients in wealth preservation, succession planning, and personal and business income tax solutions for high net worth individuals and their families, with a concentration in investment managers.
Leveraging her distinction in the women’s business community, Carolyn was instrumental in launching Marcum Women’s Leadership Development Program, a cutting-edge initiative to help promote and nourish the careers of the Firm’s female managers and partners. Currently, she serves on the Firm’s national Diversity, Equity & Inclusion (DEI) Committee.
In addition, she chairs the annual Marcum Workplace Challenge, the firm’s largest event and the largest event of its kind on Long Island, which has raised more than $1.3 million for community nonprofit organizations since 2006.
A recognized industry leader named one of the Most Powerful Women in Accounting by several publications, Carolyn has authored numerous articles and speaks before professional organizations on tax, estate, and succession planning topics. She also has been quoted in several publications on work-life balance, flexible scheduling, and women’s initiatives. In recognition of her work in the community, she’s won several awards, including the Long Island Association Humanitarian Award, a Midas Award for Corporate Accounting, and Long Island’s Top 50 Women in Business.
Prior to joining Marcum in 1991, she operated her own practice providing services to small, mid-sized, and women-owned businesses as well as high net worth individuals. Earlier in her career, she spent 10 years with a Big Four firm.
Professional & Civic Affiliations
- American Institute of Certified Public Accountants (AICPA)
- New York State Society of Certified Public Accountants (NYSSCPA)
- Long Island Association, Board of Directors
- Long Island Cares Inc.-The Harry Chapin Food Bank, Board of Directors
- Girl Scouts of Nassau County, Finance Committee, Former Board Member
- Long Island Center for Business and Professional Women, Past President
Awards & Recognitions
- Top Dynamic Women Leaders, Long Island Business News, 2024
- Most Powerful Influencers, Long Island Business News, 2022
- Power List – Long Island’s Most Powerful Women, Long Island Business News, 2022
- Top 25 Power Accountants, Long Island Business News, 2022, 2021
- Top Business Leaders of Nassau, Blank Slate Media, 2022
- Long Island Association Humanitarian Award, 2018
- SUNY Oneonta Alumni of Distinction Award, 2017
- Midas Award for Corporate Accounting, Long Island Pulse, 2016
- Professional Mentoring Leadership Award, Advancement for Commerce, Industry & Technology (ACIT), 2015
- One of the Most Powerful Women in Accounting, CPA Advisor Magazine
- Women in Accounting: Preparing Future Leaders, Accounting Today TV
- Long Island’s Top 50 Women, Long Island Business News, Hall of Fame