| 98384819 | IGI | Glenmark Pharmaceuticals Limited | — |
| 74733933 | IGI | International Group, The | 1998298 |
| 86950273 | IGI | BAXALTA INCORPORATED | 5108183 |
| 86142468 | IGI | BAXALTA INCORPORATED | 4638440 |
| 98016280 | IGI | MDLand International Corporation | 7292166 |
| 76135020 | IGI | INTERNATIONAL GEMOLOGICAL INSTITUTE, INC. | 2687886 |
| 73754285 | IGI | INTERNATIONAL GROUP, INC., THE | 1586368 |
| 79311757 | IGI | Marvelous Inc. | — |
| 88689298 | IGI | The Association of Union Constructors | 6089550 |
| 88765426 | IGI | ZHEJIANG HUOJU DOWN CO., LTD. | 6191516 |
| 86497553 | IGI | MARTINEZ FERRARI, MAXIMILIANO ARIEL | — |
| 79222967 | IGI | ISTITUTO GEMMOLOGICO ITALIANO (IGI) | — |
| 77965988 | IGI | IGI Corp. | 3867386 |
| 87095712 | IGI | IGI Trading LLC | — |
| 87094174 | IGI | IGI Trading LLC | — |
| 80995981 | IGI | International Graphics, Inc. | 0995981 |
| 80983765 | IGI | Spectracom Corporation | 0983765 |
| 78814922 | IGI | International Gold, Inc. | — |
| 78396678 | IGI | Southern Decorative Glass Corporation | 3113672 |
| 75364007 | IGI | Innovative Gaming Corporation of America | — |
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| 74109874 | IGI | IGI International, Inc. | — |
| 73541247 | IGI | INTERACTIVE GRAPHICS, INC. | 1413679 |
| 73489461 | IGI | IGI BIOTECHNOLOGY, INC. | 1473830 |
| 73329345 | IGI | International Grating, Inc. | 1214838 |
| 73261269 | IGI | International Gemmological Institute, Inc. | 1188889 |
| 73186544 | IGI | International Games, Inc. | 1139674 |
| 73168785 | IGI | INTERNATIONAL GEM INVESTORS, LTD. | 1118936 |
