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Financial Service in Islip
87 financial service businesses in Islip, United States. All Islip businesses →
At a glance
As of August 2026, business.wiki lists 87 financial service businesses in Islip— 3.7% of the city's 2,353 listed businesses. 100% publish a phone number and 93% have a website, spread across 67 postcode districts. The largest local presence is Raquel Trastoy: Allstate Insurance with 2 locations in the city.
Where in Islip: 11788 (9)·11751 (5)·11741-4000 (3)·11788-2957 (3)·11739-1001 (2)·11788-2800 (2)·11788-3063 (2)·11788-4361 (2)
Chains here: Raquel Trastoy: Allstate Insurance ×2·Western Union ×2
Directory — top 30 by data completeness
| Business | Address | Postcode | Phone | Web |
|---|---|---|---|---|
| H&R Block | Westfield Shoppingtown South Shore, 1701 Sunrise Hwy | 11706-6007 | +16316652600 | ✓ |
| Effie Knuth - State Farm Insurance Agent | 2411 Chestnut Ave | 11779-6083 | +16317373276 | ✓ |
| Broadridge Financial Solutions | 51 Mercedes Way | 11717-8368 | +16312547400 | ✓ |
| ROK Financial | 3500 Sunrise Hwy | 11739-1001 | +18333376534 | ✓ |
| Jet Direct Mortgage | 4875 Sunrise Hwy | 11716-4630 | +16315741306 | ✓ |
| Xtreme Freedom | 1246 Montauk Hwy | 11795-4917 | +16319434737 | ✓ |
| Coinstar Kiosk | Stop & Shop, 400 Union Blvd | 11795 | +18009282274 | ✓ |
| S.J. Cantore Tax Services | 763 Pat Dr | 11795-3541 | +16313216294 | ✓ |
| Tait's Tax Service | 94 W Main St | 11706-8365 | +16318252626 | ✓ |
| SASSI Property Coverages | 21 Maple Ave | 11706-8752 | +15185946901 | ✓ |
| Michael S. Stagnitta - State Farm Insurance Agent | 87 Park Ave | 11706-7308 | +16316668350 | ✓ |
| Michael Zahl - UnitedHealthcare Licensed Sales Agent | 155 Union Ave | 11751-4314 | +16314554213 | ✓ |
| Ketty S Robles Accounting | 609 E Main St | 11706-8506 | +16319545090 | ✓ |
| Raquel Trastoy: Allstate Insurance | 726 Main St | 11751 | (631) 618-0151 | ✓ |
| Christopher Hernandez | 1340 Lombardy Blvd | 11706-4027 | +16317666405 | ✓ |
| John LoGiudice: Allstate Insurance | 227 Islip Ave | 11751 | (631) 859-3000 | ✓ |
| Lighthouse Insurance | 241 Islip Ave | 11751-3031 | +16315810100 | ✓ |
| Rockline Wealth Management | 2701 Sunrise Hwy | 11752-2642 | +15166051613 | ✓ |
| Don Coley & Associates | 372 Islip Ave | 11751-1808 | +16312778804 | ✓ |
| Giambalvo, Stalzer & Company, CPAs, P.C. | 3500 Sunrise Hwy | 11739-1001 | +16313218000 | ✓ |
| Chris Herbst | 921 Montauk Hwy | 11769-1733 | +16315672227 | ✓ |
| James F Sutton Agency Ltd | 143 E Main St | 11730-2601 | +16315817978 | ✓ |
| ISC Coverage | 93 Main St | 11796-1803 | +16317506990 | ✓ |
| Mike Pieslak - State Farm Insurance Agent | 304 W Main St | 11782 | +16315894466 | ✓ |
| AccounTax Solutions & Co. | 554 Islip Ave | 11751-1505 | +16312310005 | ✓ |
| Shirley Cruickshank Agency | 871 Connetquot Ave | 11752-1426 | +16317618585 | ✓ |
| Los Tres Ositos | 1423 Islip Ave | 11722-3952 | +16314358502 | ✓ |
| Slyngshot Management Services | 1421 Islip Ave | 11722-3941 | +16314857088 | ✓ |
| North American Association Network | 1461 Lakeland Ave | 11716-2174 | +16315637720 | ✓ |
| MVP Tax and Accounting Services | 16 Washington Ave | 11717-3216 | +16315245360 | ✓ |
Showing the 30 most complete records of 87 total. Every listed business has its own page with map, nearby competitors and city context.
About this data
Counts are computed live from our database of 2,353 Islip businesses, built on open data from the Overture Maps Foundation and refreshed with each monthly release. Cite as: “business.wiki, Financial Service in Islip (August 2026)”.