| SEIKA 1936916 · TMA1120728 · design | WHEALTHFIELDS ASIA PACIFIC PTE. LTD. | 3 Cosmetics | Registered | 2022 |
| SEKKA 1415787 · TMA777501 | Wismettac Asian Foods, Inc. | 30 Coffee | Registered | 2010 |
| SEKAI 2245738 | Owner not listed | 9 Electronics35 Advertising36 Finance+3 | Pending | 2022 |
| SEK 1450145 · TMA823833 | Bravo Foxtrot Holdings, Inc. (an Illinois corporation) | 1 Chemicals3 Cosmetics6 Metal+3 | Registered | 2012 |
| SEK 1450143 · TMA824167 · design | Bravo Foxtrot Holdings, Inc. (an Illinois corporation) | 1 Chemicals3 Cosmetics6 Metal+3 | Registered | 2012 |
| SUKA 1401935 · TMA753639 · design | an individual | 9 Electronics14 Jewellery18 Leather+2 | Registered | 2009 |
| SOKA 1388838 · TMA749604 | Soka Gakkai International Association of Canada | 3 Cosmetics4 Oils6 Metal+7 | Registered | 2009 |
| SIKA 1375350 · TMA738708 | SIKA DR. SIEBERT & KUHN GMBH & CO. KG | 9 Electronics | Registered | 2009 |
| SIKA 1365610 · TMA770667 | SIKA DR. SIEBERT & KUHN GMBH & CO. KG | 9 Electronics | Registered | 2010 |
| SEKO 1311843 · TMA720552 · design | SEKO WORLDWIDE, LLC | 39 Transport | Registered | 2008 |
| SEGA 1158733 · TMA702557 | SEGA CORPORATION | 9 Electronics42 Science | Registered | 2007 |
| SEGA 0808587 · TMA510230 · design | SEGA CORPORATION | 9 Electronics28 Toys | Registered | 1999 |
| SEGA 0800838 · TMA468577 · design | SEGA CORPORATION | 35 Advertising36 Finance41 Education | Registered | 1997 |
| SEGA 0794469 · TMA536402 · design | SEGA CORPORATION | 9 Electronics28 Toys | Registered | 2000 |
| SIKA 0764987 · TMA535980 · design | an individual | 1 Chemicals2 Paints3 Cosmetics+8 | Registered | 2000 |
| SEGA 0707731 · TMA466623 · design | SEGA CORPORATION | 35 Advertising36 Finance41 Education | Registered | 1996 |
| SEKO 0575587 · TMA348069 | Seko Worldwide, LLC (a Delaware limited liability company) | 39 Transport | Registered | 1988 |
| SEKO 0573335 · TMA339609 · design | Seko Worldwide, LLC (a Delaware limited liability company) | 39 Transport | Registered | 1988 |
| SOKA 0558968 · TMA327060 · design | SOKAGAKKAI | 16 Paper | Registered | 1987 |
| SEGA 0546427 · TMA333672 · design | SEGA CORPORATION | 9 Electronics28 Toys | Registered | 1987 |
| SECA 0464265 · TMA263851 · design | an individual | 12 Vehicles | Registered | 1981 |
| SIKA 0347333 · TMA206211 | SIKA DR. SIEBERT & KUHN GMBH & CO. KG | 9 Electronics10 Medical11 Lighting+1 | Registered | 1975 |
| SEGA 0276251 · TMA135355 | SEGA CORPORATION | 7 Machines9 Electronics28 Toys | Registered | 1964 |
| SIKA 0127741 · TMDA39212 | an individual | 1 Chemicals | Registered | 1926 |
| SEKC 2090760 | GISH JAPAN CO., LTD | 9 Electronics | Pending | 2021 |