| Rbk Pediatrics, P.c. | Health Care and Social Assistance | $865,617 | $871,029 | 83 | $26.1M |  Research |
| Long Island Spine Specialists PC | Health Care and Social Assistance | $839,297 | $850,931 | 83 | $26.1M | Research |
| Sterling Floor Designs, Ltd. | Construction | $775,500 | $781,446 | 55 | $13.9M | Research |
| Sterling Floor Designs, Ltd. | Construction | $775,500 | $781,510 | 57 | $14.4M | Research |
| Girl Scouts of Suffolk County INC | Other Services (except Public Administration) | $602,500 | $609,462 | 70 | N/A | Research |
| Old World Italian Food Corp | Accommodation and Food Services | $577,928 | $581,934 | 41 | $7.3M | Research |
| North Shore Farms Commack Ltd. | Agriculture, Forestry, Fishing and Hunting | $567,500 | $574,854 | 72 | $7.4M | Research |
| The Nichols Agency S Corp | Unknown | $562,500 | $567,369 | 28 | N/A | Research |
| Girl Scouts of Suffolk County INC | Other Services (except Public Administration) | $561,929 | $569,109 | 65 | N/A | Research |
| 2158 Restaurant Corp | Accommodation and Food Services | $539,525 | $545,009 | 47 | $8.3M | Research |
| Rce Manufacturing LLC | Manufacturing | $526,400 | $529,409 | 46 | $12.0M | Research |
| Rock Hill LLC | Accommodation and Food Services | $496,690 | $701,520 | 175 | $54.7M | Research |
| Silver Spoon Diner INC DBA Premier Diner | Accommodation and Food Services | $495,712 | $502,432 | 40 | $7.1M | Research |
| Child Care Council of Suffolk, INC | Health Care and Social Assistance | $478,637 | $485,390 | 47 | N/A | Research |
| 2158 Restaurant Corp. | Accommodation and Food Services | $466,000 | $537,221 | 54 | $9.6M | Research |
| M&v Limousine Ltd | Transportation and Warehousing | $461,888 | $466,571 | 72 | $69.8M | Research |
| Coral Color Process, Ltd. | Manufacturing | $460,331 | $465,868 | 33 | $32.7M | Research |
| M&v Limousine Ltd | Transportation and Warehousing | $458,900 | $462,393 | 85 | $82.5M | Research |
| Coral Color Process Ltd | Manufacturing | $448,787 | $453,078 | 34 | $33.7M | Research |
| Ainos Corporation | Accommodation and Food Services | $437,500 | $441,132 | 40 | $7.1M | Research |
| New York Dermatology & Mohs Surgery | Health Care and Social Assistance | $428,625 | $432,020 | 47 | $14.8M | Research |
| Old World Italian Food Corp | Arts, Entertainment, and Recreation | $414,855 | $420,398 | 30 | <$5M | Research |
| Botticelli Foods LLC | Wholesale Trade | $406,500 | $282,402 | 21 | $5.4M | Research |
| Maloya Laser INC | Manufacturing | $398,223 | $403,624 | 26 | $6.4M | Research |
| Kiddie Care Early Learning Center INC | Health Care and Social Assistance | $375,000 | $377,573 | 50 | $8.1M | Research |