| Abbreviation | Definition |
|---|---|
| SNIFF | American Sensors, Incorporated (de-listed) |
| SNIO | Senticore, Incorporated |
| SNKI | Swank, Inc. |
| SNKI | Swank, Incorporated (de-listed) |
| SNKI | Swank, Incorporated (de-listed) |
| SNLCE | Security National Corporation of Sioux City |
| SNLCE | Security National Corporation of Sioux City (de-listed) |
| SNLCE | Security National Corporation of Sioux City (de-listed) |
| SNLTE | Sunlite, Inc. |
| SNLTE | Sunlite, Incorporated (de-listed) |
| SNLTE | Sunlite, Incorporated (de-listed) |
| SNLV | Snelling Travel, Inc. |
| SNLV | Snelling Travel, Incorporated (de-listed) |
| SNLV | Snelling Travel, Incorporated (de-listed) |
| SNMLE | Spartan Mills |
| SNMM | StarNet Communications International, Inc. |
| SNMM | StarNet Communications International, Incorporated (de-listed) |
| SNMM | StarNet Communications International, Incorporated (de-listed) |
| SNNT | SN, Ltd. |
| SNNT | Synthonics Technologies, Inc. |