| GC Communication( Marseilles ) | GCC IP Pty Ltd.( West Perth WA ) | GCI Pipe Products, Inc. ( Shawnee, KS ) |
| GC CORPORATION ( Aichi-gun, JP ) | GCC Management Limited( Kowloon ) | GCI Technologies Corp. |
| GC Corporation ( Hiroshima, JP ) | GCC Management Limited ( Kowloon, HK ) | GCK, Inc. |
| GC Corporation ( Itabashi-ku, JP ) | GCC Technology and Processes S.A. ( Lausanne, CH ) | GCK, Inc. ( San Antonio, TX ) |
| GC Corporation ( Minami-ku, JP ) | GCC, Inc. ( San Jose, CA ) | GCM 600 Limited( Middlesex ) |
| GC Corporation ( Shinjuku-ku, JP ) | GCE S.A.S( La Charite sur Loire ) | GCODER SYSTEMS AB ( Molnlycke, SE ) |
| GC Corporation( Tokyo ) | GCE SAS( La Charite sur Loire Cedes ) | GCOMM CORPORATION ( Tokyo, JP ) |
| GC Corporation ( Tokyo, JP ) | GCE SAS( La Charite sur Loire Cedex ) | GCP, LLC |
| GC Dental Products Corp. ( Kasugai, JP ) | GCE-Rhoena Autogengeraete GmbH ( Fulda, DE ) | GCS Distributing, LLC ( Idaho Falls, ID ) |
| GC Europe N.V.( Leuven ) | GCG Holdings Ltd | GCS Innovations, Inc. ( Lake Mary, FL ) |
| GC Holding A/S, C/O Composhield A/S ( Hobro, DK ) | GCG Holdings Ltd( Nassau ) | GCS, Inc.( Kimhae ) |
| GC2, INC. ( Arlington Heights, IL ) | GCG Holdings Ltd ( Nassau, BS ) | GCT Gas-Cell-Tec AG( Herzogenbuchsee ) |
| GCC Beverages, Inc. ( Chestnut Hill, MA ) | GCG Holdings Ltd.( Nassau ) | GCT Semiconductor Inc. ( San Jose, CA ) |
| GCC Beverages, Inc. ( Miami, FL ) | GCG, LLC ( Manassas, VA ) | GCT Semiconductor, Inc. |
| GCC Innovations, LLC ( Hector, NY ) | GCHM Enterprises, Inc. ( Boonton, NJ ) | GCT Semiconductor, Inc. ( San Jose, CA ) |
| GCC IP PTY LTD ( Geraldton, AU ) | GCI Outdoor, Inc. ( Higganum, CT ) | GCT Semiconductor, Inc. ( Santa Clara, CA ) |
| GCC IP Pty Ltd( Perth ) | GCI Pipe Products | |
|