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8 Main Street, Kings Park, NY 11754  ·  Mon to Fri, 8:30am to 5pmCall (631) 269-4800
About us

A Main Street agency, family-run for generations.

John J. Flynn, Inc. has served Kings Park and communities beyond for generations, as an independent agency that works for its clients.

John J. Flynn, Inc. has served the Kings Park community and beyond for generations. We are an independent insurance agency representing many AM Best "A" rated carriers, chosen for their financial strength and claims service.

Today JN Grace Group, Inc. and the Flynn Insurance Agency operate from one office at 8 Main Street, which positions us well for the decades ahead. With the fourth generation of Flynns on the horizon, we look forward to serving our clients for many years to come.

Real People, Real Service

Call our Main Street office and a real person answers. No automated phone trees, no runarounds. You will always speak with a dedicated agent who knows your coverage, understands your needs, and will support you every step of the way, from your first quote to a potential claim.

Our people

Our licensed staff at the Flynn and JN Grace Group Insurance Agency bring deep experience across homeowners, auto, umbrella, business, bonds, life and health coverage, and the know-how to put those products to work for the people we serve. We work to earn trust and build long relationships, and we are proud that our clients keep coming back to us for advice.

Our mission

To protect what matters most to our clients by delivering personal, responsive service and expert guidance. We work tirelessly to find the right coverage, from the right carrier, at the right price, always putting our clients first.

Our values

"We will never recommend something for you unless we truly believe it is in your best interest."

Our vision

Specialized advisers providing personalized solutions. Whether it is a routine question about your account or a major change, our team uses modern agency systems to respond quickly.

Proudtown video of the Flynn Insurance Agency

John J. Flynn, Inc. has represented The Hartford with distinction since 1934
John J. Flynn, founder of John J. Flynn, Inc.
Our founder
"Knowing what's happening is Good. Making it happen is Better."
John J. FlynnFounder, John J. Flynn, Inc.
Meet the team

The people you will talk to.

Larry FlynnPresident, John J. Flynn, Inc.(631) 269-4800 x300
John L. Flynn, CPCUVice President, John J. Flynn, Inc. / JN Grace Group, Inc.John.Flynn@JJFlynninsurance.com(631) 269-4800 x221
Mark C. MaguirePresident, JN Grace Group, Inc.Mark.Maguire@JNGrace.com(631) 499-5100 x131
Insurance companies

Carriers we represent

As partner agents and through brokered markets, we can compare a wide range of options for you.

The HartfordTravelersThe HanoverProgressiveUtica NationalPlymouth RockNYCM InsuranceMerchantsAmTrustKingstoneOcean Harbor CasualtyCabrillo Coastal (US Coastal)PrudentialJohn HancockLincoln FinancialLegal & General AmericaForestersAmerican National

Partner carriers

  • The Hartford
  • Hanover
  • Merchants
  • Foremost
  • Travelers
  • Utica National
  • Plymouth Rock
  • US Assure
  • NY Central Mutual
  • Progressive
  • AmTrust
  • Kingstone
  • Ocean Harbor
  • Cabrillo Coastal (US Coastal)

Brokered companies

  • Chubb
  • Interboro
  • Harleysville
  • Lexington
  • Fireman's Fund
  • AIG
  • Pure
  • Scottsdale
  • Narragansett Bay
  • Lloyd's of London
  • Lantana
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