About Us

Fasten Halberstam LLP is a full service accounting firm located in the heart of NYC’s financial district offering a broad range of services for a diversified clientele representing a variety of industries. . The firm’s partners have over 25 years of experience in all areas of accounting, taxation and business consulting.

Fasten Halberstam LLP has gained a reputation as the consummate firm that provides the same level of expertise and professionalism typically associated with larger firms, with the individual attention and personalized service of a boutique firm.

Every Client is Important to Us

Every client of the firm receives a high level of service deeply rooted in integrity, attentive listening, and respect. We believe your perspectives and points of view are important in achieving the best outcomes. Our ability to be flexible and nimble makes us a good fit with many companies, including:

  • Small, mid-sized, national, and global businesses
  • Public companies
  • Private companies
  • Equity backed companies

Fasten Halberstam LLP gives Clients Peace of Mind

We are known for meeting its commitments. As a client, you benefit from our highly skilled resources and expert and independent guidance on simple to the most complex issues. You can count on Hein teams to get work done completely and on time. Our clients trust that we act with integrity by providing:

  • Viable alternatives to resolve issues and solve problems
  • Practical experience and understanding of your business
  • Trustworthy and reliable professionals
  • Independent thinking to provide objective advice


  • Attestation Engagements
  • Audited, Reviewed or Compiled Financial Statements
  • Mergers and acquisitions
  • Transaction Services
  • Forecasts and projections


  • Financial Services
  • Real Estate
  • Privately held businesses
  • High Net-Worth Individuals
  • Professional services
  • Banks and lending institutions

Contact us

40 Wall Street, Suite 3602
New York, NY 10005

Telephone: (212) 751-8337

Fax: (718) 799-5576

Email: info@fhllp.com