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Grassi & Co.


At a Glance


“Great culture, leadership, and colleagues”

“Flexible hours and work/life balance”

“Ability to move up quickly if hardworking”


“Busy season hours”

“Significant administrative burden”

“Staff turnover”

About Grassi & Co.

Founded in 1980 by Lou Grassi, Grassi is now one of the 100 largest tax, accounting, and business advisory firms in the U.S., as measured by annual revenues. The firm has also been ranked among the 20 largest accounting firms in New York and among the three largest on Long Island.

Based in Jericho, N.Y., the firm has New York offices in Long Island, Manhattan, Westchester County, and an office in New Jersey. The firm also has two offices in Italy, one in Milan, and one in Rome.

Grassi is an independent member firm of Moore America, the North American arm of Moore Global Network, an international association with over 260 independent accounting and consulting firms with approximately 30,000 people total in over 110 countries.

COVID-19 Update

In response to the COVID-19 outbreak, Grassi executed its business preparedness plan and maintained business continuity at the height of busy season. The firm’s advanced technology capabilities and existing work-from-home policies allowed for an easy transition to a remote work environment for all employees and interns. The firm has continued to identify top talent in our industry despite the COVID-19 pandemic, and we will continue to conduct web-based and remote interviews to expedite the hiring process at this time.

Grassi & Co.

50 Jericho Quadrangle
Suite 200
Jericho, NY 11753
Phone: (516) 256-3500

Firm Stats

Employer Type: Private
CEO/Managing Partner: Louis C. Grassi
2020 Employees (All Locations): 325