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As the 56th largest accounting firm in the nation, Grassi is a leading provider of advisory, tax and accounting services to businesses and individuals. Grassi advisors specialize in providing industry-specific business consulting, audit, tax, and technology services to key market sectors, including construction, architecture and engineering, not-for-profit, healthcare, manufacturing and distribution, financial services, real estate, cannabis and more. With offices in New York, Jericho, Ronkonkoma and White Plains, NY; Park Ridge, NJ; Palm Beach, FL; and Needham, MA, the firm has the depth of knowledge and experience to work effectively alongside clients across the Northeast and throughout the United States, as well as internationally through its membership in Moore Global.

Grassi Questions

The Grassi annual revenue was $64.3 million in 2026.

Louis is the CEO of Grassi.

48 people are employed at Grassi.

Grassi is based in Jericho, New York.

The NAICS codes for Grassi are [5412, 5416, 54, 541614, 541211, 541, 54161, 54121].

The SIC codes for Grassi are [872, 87].

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