In addition to the Nissenbaum Law Group's extensive litigation practice in the State and Federal Courts, it also represents clients before executive agencies of the State and Federal government. This includes such entities as:

• The NJ Division on Civil Rights
• The NJ Department of Environmental Protection
• The NJ Board of Psychology Examiners
• The NJ Department of Homeland Security
• The NJ Department of Banking & Insurance
• The NJ Department of Community Affairs
• The NY Department of Labor
• The NY Division of Taxation
• United States Federal Trade Commission
• United States Food & Drug Administration
• United States Patent & Trademark Office, and the associated Trademark Trial & Appeal Board
• United States Copyright Office