| STONCOR 1110119 · TMA618493 | Owner not shown | 1 Chemicals2 Paints3 Cosmetics+4 | Registered | 2004 |
| STONECOR 0852290 · TMA525134 | Castek Environmental Products Inc. | 17 Rubber | Registered | 2000 |
| STONESHARE 1826474 · TMA1005595 | StoneShare Inc. | 42 Science | Registered | 2018 |
| STONESAGA 2154916 · TMA1206548 | OOMM Games Ltd. | 28 Toys | Registered | 2023 |
| STANCOR 2097897 · TMA1183919 | INDUSTRIAL FLOW SOLUTIONS OPERATING, LLC | 7 Machines9 Electronics | Registered | 2023 |
| STENOCARE 2073460 · TMA1219633 | Owner not shown | 5 Pharmaceuticals | Registered | 2024 |
| STONEHOG 1737104 · TMA968749 | Hazelwood Finance Corp. | 7 Machines35 Advertising37 Construction | Registered | 2017 |
| STONGARD 1535991 · TMA876102 | Owner not shown | 2 Paints | Registered | 2014 |
| STINSON 1499069 · TMA807605 · design | Toolways Industries Ltd. | 6 Metal7 Machines8 Hand+3 | Registered | 2011 |
| STONES 1490060 · TMA868163 · design | Stones Marine Centre Inc. | 36 Finance37 Construction39 Transport | Registered | 2014 |
| STONEGARD 1461247 · TMA778812 | THE GOODYEAR TIRE & RUBBER COMPANY (AN OHIO CORPORATION) | 12 Vehicles | Registered | 2010 |
| STONEKOTE 0746451 · TMA491443 | E.L. STONE COMPANY | 40 Treatment | Registered | 1998 |
| STONES 0734299 · TMA455196 | Dressmaster GmbH | 25 Clothing | Registered | 1996 |
| STONSET 0662891 · TMA474547 | Owner not shown | 19 Building | Registered | 1997 |
| STONSEAL 0662890 · TMA419085 | Owner not shown | 2 Paints | Registered | 1993 |
| STONKOTE 0662884 · TMA419083 | Owner not shown | 1 Chemicals2 Paints | Registered | 1993 |
| STANCOR 0214750 · UCA45133 | Stancor Electronics, LLC an Arizona limited liability company | 7 Machines9 Electronics11 Lighting+1 | Registered | 1952 |
| STONES 1996307 · design | Owner not shown | 1 Chemicals2 Paints6 Metal+6 | Pending | 2019 |
| STONESTREET 1683543 · TMA916342 | Jackson Family Farms, LLC | 33 Wine | Registered | 2015 |
| Stoneshell 2066161 · TMA1278519 | Innovation Material Inc. | 19 Building | Registered | 2024 |
| STOINSPIRE 2045792 · TMA1263839 | STO SE & Co. KGaA | 9 Electronics42 Science | Registered | 2024 |
| STENOSTENT 1750120 · TMA1056059 | Owner not shown | 10 Medical | Registered | 2019 |
| STONEGUARD 1644079 · TMA892405 | Home Depot International, Inc. | 36 Finance | Registered | 2014 |
| STONEGUARD 1462902 · TMA923088 | Home Depot International, Inc. | 19 Building | Registered | 2015 |
| STONEGUARD 1462900 · TMA923074 | Home Depot International, Inc. | 19 Building | Registered | 2015 |