| Telaid Industries, Inc. | Professional, Scientific, and Technical Services | $3,570,600 | $3,611,882 | 260 | $53.8M |  Research |
| Ssc Niantic Operating Company LLC | Health Care and Social Assistance | $1,541,400 | $1,554,288 | 161 | $27.4M | Research |
| Guy's Oil Service Station, Inc. | Retail Trade | $391,795 | $395,380 | 37 | $12.4M | Research |
| Boats Acquisition Company LLC | Arts, Entertainment, and Recreation | $325,300 | $327,305 | 23 | <$5M | Research |
| Nepv LLC | Wholesale Trade | $289,441 | $292,613 | 12 | <$5M | Research |
| Three Belles, LLC | Arts, Entertainment, and Recreation | $255,484 | $200,987 | 25 | <$5M | Research |
| Pvi Systems, Inc. | Professional, Scientific, and Technical Services | $248,200 | $250,016 | 14 | <$5M | Research |
| Crest Ford LLC | Wholesale Trade | $218,777 | $219,916 | 23 | $7.0M | Research |
| Crest Ford LLC | Retail Trade | $218,775 | $220,459 | 22 | $5.5M | Research |
| Port Niantic INC | Arts, Entertainment, and Recreation | $192,000 | $193,872 | 61 | $8.5M | Research |
| East Lyme Pediatric Clinic LLC | Health Care and Social Assistance | $179,592 | $181,875 | 15 | <$5M | Research |
| Gemini Management LLC | Accommodation and Food Services | $159,003 | $160,580 | 14 | <$5M | Research |
| Bright & Early Niantic LLC | Health Care and Social Assistance | $158,847 | $159,613 | 41 | $6.6M | Research |
| Niantic Dental Associates, PC | Health Care and Social Assistance | $155,308 | $156,793 | 13 | <$5M | Research |
| Niantic Dental Associates P.c. | Health Care and Social Assistance | $155,308 | $157,605 | 13 | <$5M | Research |
| Port Niantic INC | Arts, Entertainment, and Recreation | $152,000 | $153,186 | 61 | $8.5M | Research |
| Black Sheep LLC | Accommodation and Food Services | $148,998 | $150,284 | 34 | $6.0M | Research |
| Bright & Early Niantic, LLC | Health Care and Social Assistance | $146,981 | $148,016 | 41 | $6.6M | Research |
| Niantic Plumbing & Appliance Co, INC | Construction | $142,200 | $143,680 | 14 | <$5M | Research |
| Caspers Ltd | Accommodation and Food Services | $138,260 | $140,078 | 21 | <$5M | Research |
| Creating Opportunities for Youth LLC | Educational Services | $129,550 | $130,043 | 27 | <$5M | Research |
| Creating Opportunities for Youth, LLC | Health Care and Social Assistance | $129,550 | $130,346 | 28 | <$5M | Research |
| Heavy Equipment Services Company | Public Administration | $125,400 | $126,970 | 7 | N/A | Research |
| Gemini Management LLC | Accommodation and Food Services | $120,414 | $6,202 | 22 | <$5M | Research |
| A Beautiful Company Builders & Remodelers LLC | Construction | $118,900 | $119,541 | 9 | <$5M | Research |