Tax & Accounting Services for New York Business Owners
Get access to tax strategy, financial expertise, and trusted service with the local knowledge you need.
In our 2025 Client Survey, our clients awarded Revonary a score of 4.8 Stars, with 9 out of 10 saying they'd recommend us.
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A Local Team You Can Trust
Based in Rye Brook, NY, Revonary services clients across the tri-state area. Why work with us?
Built for Local Business Owners
We specialize in working with high-income professionals, small business owners, and growing companies in the tri-state area.
Focused on Client Experience
We’re not just high-caliber accounting and tax experts. We’re relationship builders, difference-makers, and trusted partners.
Real Strategy. Real Results.
We go beyond compliance to help you improve cash flow, plan for growth, and avoid surprises.
Our Services
Tax Strategy
Proactive, year-round planning to reduce your tax burden, not just file returns
Accounting & Bookkeeping
Monthly bookkeeping, forecasting, and clean-up services done right
Assurance
Audits, reviews, and compilations - designed for small businesses
Accounting System Set Up
Starting a new business? We'll help you get off on the right foot.
Financial Statement Analysis
We don't just prepare financial statements; we make sure you understand them.
Tax Planning
We spot opportunities other accountants miss, ensuring you capitalize on every opportunity.
IRS Representation
Need representation in a federal, state, or local tax examinations? We’ll work tirelessly to obtain the best outcome.
Estate & Gift Tax Planning
Build a lasting financial legacy with the support of our estate and gift tax planning professionals.
Succession Planning
Design a seamless succession plan, protecting your legacy and ensuring a smooth transition.
And More
Need help with something else? We can help – or introduce you to someone who can!
What Our Clients Say About Us
“What a SPECTACULAR experience it's been to work with Ira Grossbach and his team at Grossbach Zaino & Associates. As busy business owners and entrepreneurs we're blown away by the level of excellence and care Ira and his team have brought to aid in the building of our businesses. Ira's insights, expertise and direct no-nonsense-style have helped to ensure smooth sailing for our many varied business needs. WOW does this team go above and beyond.”
Amy Salko Robertson
“Joe Zaino has been our accountant for more than eighteen years. He does our personal taxes as well as the returns for my business and our nonprofit. He is knowledgeable, responsive, professional and a man of integrity. He does excellent work and is a solid recommendation when friends are looking for a new accountant. We wouldn't take our taxes to anyone else.”
Theresa Drescher
“Awesome Accountants that have served me well for decades!”
Joe Polillio
"Excellent service. Great support team. Ira and Laura are very professional. "
Eugenio Guzman
“Ira and all the staff are the best. Why would anyone use anyone else?”
Peter
“Awesome job. Greatest staff to work with. Ira is the best.”
PT Delorenzo
“As always, your knowledge and professionalism ease the anxiety associated with tax preparation.”
Mario Aleman
“Len and his team are extraordinary.”
Kevin Mclaughin
“There are no words to explain how confident I feel about the work this amazing group of people perform. absolutely 100% the best.”
Jonathan Stuart
“I'm a writer with three jobs, and Revonary has been fantastic in helping me organize my taxes. They were recommended by my literary agent many years ago, and I have never had anything but excellent service here.”
Kaylie Jones
“Aimee Perrin is terrific in every way!”
Arnold Washton
“Easy to work with, very professional.”
Rich Sumcizk
“I have used Revonary LLC to prepare my tax returns to the US IRS [ugh!] and to the State of New York [double ugh!] for the past twenty years or so. You guys have always done a bang-up job. Keep up the good work.”
Alexander Firestone
“I have been using Revonary Accountants and Advisors for several years. They offer excellent advise, communicate with ease and punctuality, and are at the top of their profession in their knowledge of tax law and best solutions for their clients. I highly recommend this firm.”
Jena
“Just finished my taxes this year -Love the new portal. Everything was seamless. Shout out to Laura Bernstein for once again answering my silly questions in a timely manner. I have been going to Revonary for years and couldn't be happier.”
Pat and Maggie Mulvihill
“Len Fruchter and colleagues at Revonary are excellent. I have used them for almost 20 years, and they have provided expert, timely advice on my tax returns.”
Mary Hatten
“Attentive to details, responsive to questions and concerns, willing to explore different options and overall made filing our taxes and estimated payments very easy. Highly recommend Revonary”
Blake Auchincloss
“Another year doing our taxes with Revonary Accountants & Advisors, LLC. As always, they are thorough, professional, courteous, consistent and timely! Couldn't ask for better!”
Colene Levesque
“It is always a pleasure to work with Revonary. They are quick to answer questions and are incredibly helpful when complex tax questions arise and provide expert guidance.”
Michael Berkowitz
“Revonary is a wonderful company, one which deals with numbers masterfully but is reliably empathic, flexible, humane, principled. Highly recommended.”
Kathryn King Media
Get Started Today
Reach out to our team today to take the first step on your journey toward financial clarity.