Grassi of Ronkonkoma, NY
Grassi of Ronkonkoma, NY has earned the 2026 Best of Accounting award for providing remarkable service to their clients! Grassi has 3 verified ratings from their clients earning them 4.3 out of 5 stars!
Within the Accounting industry Grassi focuses on:
Accounting,
Accounting Technology,
Audit / Assurance,
Bookkeeping,
Business Tax,
Business Valuation,
Consulting,
HR Advisory Services,
Outsourced Accounting Services,
Personal Tax,
Technology
Additional Specialties:
- Accounting
- Accounting Technology
- Audit / Assurance
- Bookkeeping
- Business Tax
- Business Valuation
- Consulting
- HR Advisory Services
- Outsourced Accounting Services
- Personal Tax
- Technology
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Get in Touch
Grassi
Testimonials
"Very responsive and solid advice"
on November 5, 2026"The team is very knowledgeable and easy to work with."
on November 5, 2026"Easy to approach, true partnership with my client service team and proactive in nature. I appreciate the real world practical approach while still being completely professional."
on November 5, 2026"Matthew Giaconelli and Steve Gaskowitz are great to work with"
on November 5, 2026"Fiona has been professional and a pleasure to work with over the years!"
on November 5, 2026"Diligent professional staff and partners"
on November 5, 2026"Expertise, know the business, keeps things moving."
on November 5, 2026"Quick responses, always helpful"
on October 30, 2026"Great to work with"
on October 30, 2026"The staff assigned to our business are always responsive and helpful with accounting direction when asked."
on October 29, 2026- 1
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Grassi of Ronkonkoma, NY Q & A
How do clients rate Grassi of Ronkonkoma, NY?
3 verified Grassi of Ronkonkoma, NY clients have reviewed Grassi of Ronkonkoma, NY and rated them 4.3 out of 5 stars. You can see all the client ratings on their profile.
What kind of company is Grassi of Ronkonkoma, NY?
This accounting firm focuses on: Accounting, Accounting Technology, Audit / Assurance, Bookkeeping, Business Tax, Business Valuation, Consulting, HR Advisory Services, Outsourced Accounting Services, Personal Tax, and Technology.
About Grassi
Grassi is in the Accounting industry with company headquarters in New York, NY and has 7 Grassi locations.
Company Awards
6 year winner
2026 Best of Accounting Client
6 year winner
2026 Best of Accounting Client 5 Year Gold
Company Rating
Overall rating for 7 locations.
Company Headquarters
Grassi 360 Madison Avenue, 7th Floor New York, NY 10017
212.661.6166
212.755.6748
