SPECIALISTS

Marcello Castellano

Managing Director, Citrin Cooperman Advisors LLC

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Experience

Marcello is a managing director in Citrin Cooperman’s Business Process Outsourcing (BPO) Practice, focusing on life sciences companies. He brings over 20 years of accounting and finance experience to the firm.

Marcello is a finance and accounting leader who supports venture-backed and growth-stage life sciences companies through many of their key milestones, from early-stage discovery through clinical trials. He collaborates closely with founders, executive teams, and boards to build scalable finance functions and support critical milestones, including financings and initial public offering (IPO) readiness. Marcello brings a practical, hands-on approach across budgeting and forecasting, cap table management and equity modeling, financing support, and broader strategic finance initiatives, helping leadership teams translate complex financial data into clear, actionable insights. He is known for his practical approach, technical rigor, and strong client-service mindset.

Previously, Marcello was a director at Browne Consulting, which joined Citrin Cooperman in 2026. He started his career in public accounting at a Big Four firm, where he worked in the audit, global capital markets, and financial due diligence groups. Afterward, he worked in outsourced accounting and finance roles for startups, as well as finance effectiveness for private equity-backed companies.

CREDENTIALS

Education

BBA in Accounting, University of Massachusetts

WORK-LIFE BALANCE

Community Involvement

Treasurer and member of the Society of St. Vincent de Paul, St. Peter Parish in Cambridge, MA.

Outside the Office

In his free time, Marcello enjoys playing guitar, staying active, traveling, and spending time with his family.

Get in touch with Marcello Castellano today.

Fill out the form below to get in direct contact with Marcello Castellano and start your personalized consultation journey.

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What I enjoy most is using my experience and skills to help clients navigate complexity, make confident decisions, and focus on building great companies.

Get in touch with Marcello Castellano today.

Fill out the form below to get in direct contact with Marcello Castellano and start your personalized consultation journey.

* Required

* I understand and agree to Citrin Cooperman’s Privacy Notice, which governs how Citrin Cooperman collects, uses, and shares my personal information. This includes my right to unsubscribe from marketing emails and further manage my Privacy Choices at any time. If you are a California Resident, please refer to our California Notice at Collection. If you have questions regarding our use of your personal data/information, please send an e-mail to privacy@citrincooperman.com.

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