We have unique programs for many different businesses including: Restaurants, Contractors, Churches, Landlords and more. Give one of our licensed agents a call to see if we have a unique offering for your business.









Established in 1986

GRBM Insurance is a family owned and operated independent insurance agency located at 39 Old Doansburg Rd. Brewster, NY, just seventy five miles north of New York City. Established in 1986, GRBM has a wide customer base. We service clients from New York City, Long Island, Westchester County and up the Hudson Valley. Additionally, we service many clients from Litchfield, Fairfield and New Haven County. We are licensed to sell insurance in multiple states throughout the U.S.


Very professional and fast insurance broker. We called a few brokers to try to get the best price for the best coverage and GRBM was by far the best company. We saved more than $8,000 per year on our General liability insurance for our business and got very good coverage.

Gihan Naddschar, CEO @ Onyx Contracting

Very fast service. Robert T McCarthy talked me through my options and answered all my questions until I was comfortable with the level of coverage. From quote to coverage to insurance statements look minutes not hours or days. I feel ready for anything now.

Cornelius Schmid, President @ Longhouse Workshop Inc.

I have used GRBM for all of my insurance needs since I bought my first car in 1991. Everyone in this company has been 100% available for me when I needed them. They go above and beyond in times of crisis, they let me know when they can save me money with new plans & have recently helped me save money on a car just for being available to me on a holiday weekend. I love GRBM and will remain a loyal client. They have certainly done right by me for more than 26 years.

Lisa M, Hopewell Junction, NY

I have nothing but positive things to say about GRBM. It's almost a surreal experience to call an insurance company and have them know who I am just by my name. After an unexpected and considerable rate increase on my insurance from my old company, they were able to get my bill down to around half. I am utterly pleased with my experience, and completely recommend GRBM.

Caleb D, Carmel, NY

Robert and GRBM Insurance exceeded our expectations with their top notch service and especially their prompt reply and action to our requests. The difference between waiting 24 hours and having something delivered to your inbox in less than 10 minutes to meet a deadline was superb. As I mentioned to Robert, it is businesses like theirs that truly stand out in this world where “service” gets often confused with just the bare minimum. GRBM Insurance has earned our trust.

Chris Campos, President @ Zena General Contractors



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