| SPECDISC 1453449 · TMA774389 | OpenGeoSolutions Inc. | 42 Science | Registered | 2010 |
| SPECTIV 2180750 · TMA1265396 | DecisionWise, LLC | 42 Science | Registered | 2024 |
| SPECTIVE 1867011 · TMA1103556 | Kleemann GmbH | 7 Machines8 Hand9 Electronics | Registered | 2021 |
| SPECTRIS 1763270 · TMA1183321 | Spectris Plc | 7 Machines9 Electronics12 Vehicles+2 | Registered | 2023 |
| SPECTITE 1286496 · TMA703923 | Spectite Ltd. | 6 Metal9 Electronics17 Rubber | Registered | 2008 |
| SPECTRIS 0879145 · TMA524922 | Spectris Plc | 6 Metal7 Machines8 Hand+3 | Registered | 2000 |
| SPECTEK 0833053 · TMA493495 | Micron Technology, Inc. (a Delaware corporation) | 9 Electronics | Registered | 1998 |
| SPECIT 2122960 | SpecIT Inc. | 9 Electronics37 Construction | Pending | 2021 |
| SpeechDock 0804633 · TMA509291 | Speech Processing Solutions GmbH | 9 Electronics16 Paper | Registered | 1999 |
| SPECTRILA 1782793 · TMA1032562 | Owner not shown | 5 Pharmaceuticals | Registered | 2019 |
| SPECTICLE 1754768 · TMA1017953 | Discovery Purchaser Corporation | 5 Pharmaceuticals | Registered | 2019 |
| SPACEDUCK 2311708 | DOUBLE STEADY PTY LTD | 9 Electronics35 Advertising42 Science | Pending | 2024 |
| SPECTRALINK 1294128 · TMA756070 | SpectraLink Corporation | 9 Electronics | Registered | 2009 |
| SPOOKTACULAR 2292570 · TMA1267558 | PetSmart Home Office LLC | 31 Fresh | Registered | 2024 |
| SOPPYCID 2264505 · TMA1284863 · design | Dongguan Saienchuangke Technology Co. Ltd | 28 Toys | Registered | 2025 |
| SPECTRONORM 2256890 · TMA1277663 | VWR International Holdings, Inc. | 1 Chemicals | Registered | 2024 |
| SPXTEX 2248404 · TMA1271286 | an individual | 24 Textiles | Registered | 2024 |
| SPECTRALFX 2239740 · TMA1268513 | Owner not listed | 9 Electronics | Registered | 2024 |
| Shoephisticated 2229351 · TMA1259662 | Owner not shown | 20 Furniture | Registered | 2024 |
| SAVEST 2212104 · TMA1243066 | an individual | 36 Finance | Registered | 2024 |
| Supacat 2207901 · TMA1242777 | an individual | 20 Furniture | Registered | 2024 |
| suvectoro 2204900 · TMA1241307 | Suqian Xiangliang E-Commerce Co., Ltd. | 9 Electronics | Registered | 2024 |
| SpikeTides 2202014 · TMA1274226 | JPT Peptide Technologies GmbH | 1 Chemicals5 Pharmaceuticals | Registered | 2024 |
| SPECTRA 2180703 · TMA1212514 | LENCORE ACOUSTICS LLC | 9 Electronics | Registered | 2023 |
| SPECTRUM 2169090 · TMA1219923 | Spectrum Alberta Ltd. | 3 Cosmetics35 Advertising | Registered | 2024 |