| Gia Insurance Agency LLC | Finance and Insurance | $519,800 | $524,257 | 35 | $18.0M |  Research |
| Drc Emergency Services, LLC | Health Care and Social Assistance | $475,758 | $480,985 | 29 | <$5M | Research |
| Harbor Offshore Marine, Inc. | Mining, Quarrying, and Oil and Gas Extraction | $464,000 | $467,458 | 34 | <$5M | Research |
| T & T Marine Salvage INC | Transportation and Warehousing | $449,900 | $453,931 | 30 | <$5M | Research |
| Galveston Country Club, Inc. | Other Services (except Public Administration) | $447,500 | $450,393 | 58 | $11.1M | Research |
| Ryan Marine Services, Inc. | Manufacturing | $437,815 | $441,330 | 38 | $9.9M | Research |
| Ryan Marine Services Inc. | Transportation and Warehousing | $436,450 | $440,145 | 37 | $9.4M | Research |
| Galveston Historical Foundation Inc. | Other Services (except Public Administration) | $424,200 | $426,257 | 33 | N/A | Research |
| Broome Welding & Machine Company Inc. | Manufacturing | $421,872 | $423,097 | 33 | $8.1M | Research |
| Broome Welding & Machine Co. INC | Manufacturing | $421,750 | $426,591 | 31 | $8.1M | Research |
| Searcy, Inc. | Accommodation and Food Services | $420,100 | $424,033 | 348 | $61.8M | Research |
| Family Service Center of Galveston County | Health Care and Social Assistance | $414,700 | $417,153 | 35 | N/A | Research |
| One Stop Dry Out LLC | Administrative and Support and Waste Management | $409,417 | $0 | 14 | <$5M | Research |
| One Stop Dryout LLC | Administrative and Support and Waste Management | $409,414 | $0 | 14 | <$5M | Research |
| Trinity Episcopal School | Other Services (except Public Administration) | $400,000 | $402,279 | 48 | N/A | Research |
| Galveston Er Operations LLC | Health Care and Social Assistance | $388,015 | $390,683 | 34 | $6.1M | Research |
| Mcleod, Alexander, Powel & Apffel, P.c. | Professional, Scientific, and Technical Services | $365,800 | $368,947 | 24 | $5.8M | Research |
| LLP Property Management INC | Mining, Quarrying, and Oil and Gas Extraction | $361,010 | $364,264 | 11 | <$5M | Research |
| Searcy Inc. | Accommodation and Food Services | $358,242 | $359,575 | 91 | $16.2M | Research |
| Texas Gulf Construction Co. INC | Construction | $357,470 | $359,833 | 24 | $7.4M | Research |
| Hearsay Galveston Strand LLC | Accommodation and Food Services | $348,603 | $352,941 | 38 | $6.7M | Research |
| Integrated Systems Group, Inc. | Construction | $348,095 | $350,270 | 18 | $6.1M | Research |
| A. Smecca Inc. | Accommodation and Food Services | $347,000 | $351,478 | 71 | $12.6M | Research |
| Zero/six Consulting, LLC | Professional, Scientific, and Technical Services | $343,600 | $348,668 | 23 | <$5M | Research |
| Regent Management Services LP | Professional, Scientific, and Technical Services | $338,600 | $342,484 | 26 | <$5M | Research |