Alex Castelli
CPA, Managing Partner, Emerging Industries

With more than 25 years of experience, Alex Castelli serves as CohnReznick's Managing Partner of Emerging Industries which encompasses the Technology and Media, Renewable Energy, and Life Sciences Industry practices. Additionally, he is a member of the Public Companies Group. Providing audit, accounting and advisory services, Alex primarily manages commercial enterprise engagements and services privately held companies, venture capital and private equity-backed companies, and SEC reporting companies.

The clients served by the Technology and Life Sciences Industry practices include middle-market companies ranging from early stage and emerging growth companies to growth-stage companies and later-stage public and private companies. Industry sub-segments within technology include software, SaaS, cybersecurity, digital media, mobile advertising, Internet-related, technology enabled services, and IT services. Industry sub segments within life sciences include biotechnology and pharma, medical devices and services supporting the life sciences industry. The Renewable Energy practice covers a variety of technologies including solar, wind and battery storage and services institutional investors, developers and operators.  Alex has been involved in a large number of due diligence projects, recapitalizations, internal control assessments, IPOs, going private transactions, secondary offerings, and other-SEC filings and private offerings.

Alex began his career in public accounting with a major global accounting firm and also served as a controller for a national retail clothing chain. This experience provided him with a pragmatic perspective that enables him to better understand and advise his clients.


BS, Accounting, Washington and Lee University

Professional Affiliations 

American Institute of Certified Public Accountants

Maryland Association of Certified Public Accountants

Virginia Society of Certified Public Accountants

Northern Virginia Chamber of Commerce, Board of Directors


Alex Castelli

Mobile| 703-744-6708

Office | 703-744-6700

Tysons, VA

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