| # | Name | Location | Applications |
|---|---|---|---|
| 1. | G&C INTERACTIVE CO., LTD. | 🇰🇷 Seoul, South Korea | 1 |
| 2. | GCI Communication Corp. | 🇺🇸 Anchorage, AK, United States | 2 |
| 3. | GCI GLOBAL CO., LTD. | 🇰🇷 Incheon, South Korea | 1 |
| 4. | GCI INC. | 🇰🇷 Daejeon, South Korea | 1 |
| 5. | GCI Outdoor LLC | 🇺🇸 Higganum, CT, United States | 3 |
| 6. | GCI OUTDOOR, INC. | 🇺🇸 Higganum, CT, United States | 26 |
| 7. | GCI Pipe Products, Inc. | 🇺🇸 Shawnee, KS, United States | 1 |
| 8. | GCI, Inc. | 🇺🇸 San Francisco, CA, United States | 1 |
| 9. | GCI, INC. | 🇺🇸 Longwood, FL, United States | 1 |