| 76608327 | GCS | Global Control Systems, Inc. | 3069815 |
| 85094253 | GCS | Global Contact Services, LLC | 3937657 |
| 99322907 | GCS | Raico International LLC | — |
| 86538282 | GCS | AMPHENOL FCI ASIA PTE. LTD. | 4957098 |
| 50095912 | GCS | Gulf Coast Solutions, Inc. | — |
| 77051956 | GCS | Garrett Container Systems, Inc. | 3287645 |
| 88107040 | GCS | SOIL-NAIL HOLDINGS, LLC | 5749766 |
| 98749411 | GCS | G-Con Manufacturing, Inc. | 8369743 |
| 98749351 | GCS | G-Con Manufacturing, Inc. | 8316637 |
| 88848966 | GCS | GLOBAL COMPRESSION SERVICES, LLC | 6310559 |
| 86646067 | GCS | The American Correctional Association | 5129763 |
| 86646059 | GCS | The American Correctional Association | 5129762 |
| 85880469 | GCS | GCS Holdings, Inc. | — |
| 76545999 | GCS | Foot Levelers, Inc. | 2928546 |
| 79210408 | GCS | GUASCOR ENERGY, S.A.U. | 5472008 |
| 76486439 | GCS | Government Contract Solutions, Inc. | 2810166 |
| 90754056 | GCS | Kanwar, Muhammad Adnan | — |
| 90508305 | GCS | CHIM International | — |
| 75404808 | GCS | GOVERNMENT CONTRACT SOLUTIONS INC. | 2230450 |
| 90575778 | GCS | USCES LLC | — |
| 73513044 | GCS | TOTES ISOTONER CORPORATION | 1354338 |
| 85112161 | GCS | Government Contract Solutions, Inc. | 4276177 |
| 85112140 | GCS | Government Contract Solutions, Inc. | 4159824 |
| 85112108 | GCS | Government Contract Solutions, Inc. | 4159823 |
| 87175459 | GCS | R&B Leasing | — |
| 85413026 | GCS | GCS Distribution and Licensing, LLC | 4135297 |
| 79033785 | GCS | Obrist Closures Switzerland Gmbh | 3369682 |
| 79222892 | GCS | CASC-Holding ApS | — |
| 87891412 | GCS | Hestan Commercial Corporation | — |
| 77051980 | GCS | Garrett Container Systems, Inc. | 3346886 |
| 77411277 | GCS | R& B Leasing | 3632588 |
| 77804636 | GCS | Osteotech, Inc. | — |
| 76560383 | GCS | Harrington, Charlie | 2987871 |
| 85176626 | GCS | Osteotech, Inc. | — |
| 77942364 | GCS | Global Carbon Solutions Incorporated | — |
| 77628451 | GCS | Global Contact Services | 3647040 |
| 76356534 | GCS | Global Completion Services, Inc. | 2628255 |
| 76234040 | GCS | Collier Shannon Scott, PLLC | 2515245 |
| 75380606 | GCS | General Computer Systems, Inc. | — |
| 75376505 | GCS | ERICSSON INC. | — |
| 75034766 | GCS | InCircuit Development Corporation | 2036845 |
| 74692125 | GCS | General Computing Systems, Inc. | — |
| 74580252 | GCS | GROUP 4 TECHNOLOGY LIMITED | 2315128 |
| 74285549 | GCS | GCS Service, Inc. | 1832908 |
| 74248138 | GCS | Telxon Corporation | — |
| 74230757 | GCS | SETPOINT Inc. | 1759585 |
| 74111033 | GCS | MCI Communications Corporation | 1693548 |
| 73561734 | GCS | GENTEX CORPORATION | 1419753 |
| 72345624 | GCS | GAS CONSUMERS ASSOCIATION | 0908836 |