| Company Name | Entity type | Parent/Subsidiary/Independent | Headquarters | No. of Employees | Annual Revenue ($M) | |
|---|---|---|---|---|---|---|
| ALROSA | Public | Parent | Russia | 34,579 | 4,507 | |
| Signet Jewelers Ltd | Public | Parent | Bermuda | 29,660 | 7,842 | |
| De Beers Group Plc | Private | Subsidiary (of Anglo American Plc) | Botswana | 20,000 | 5,602 | |
| DuPont de Nemours Inc | Public | Subsidiary (of Corteva Inc) | United States of America | 23,000 | 13,017 | |
| Rio Tinto | Public | Parent | United Kingdom | 54,000 | 55,554 | |
| Bakkavor Group Plc | Public | United Kingdom | 18,500 | 2,637 | ||
| Rajesh Exports Ltd | Public | Parent | India | 135 | 43,289 | |
| Reliance Steel & Aluminum Co | Public | Parent | United States of America | 14,500 | 17,025 | |
| Petra Diamonds Ltd | Public | Parent | United Kingdom | 3,474 | 585 | |
| DraftKings Inc | Public | Parent | United States of America | 4,200 | 2,240 | |
| Hilton Grand Vacations Inc | Public | United States of America | 14,500 | 3,835 | ||
| Admiral Group Plc | Public | Parent | United Kingdom | 11,335 | 4,002 | |
| Gem Diamonds Ltd | Public | Parent | United Kingdom | 370 | 189 | |
| Diamond Electric Mfg Co Ltd | Private | Subsidiary (of Diamond Electric Holdings Co Ltd ) | Japan | XYZ | XYZ | |
| NMDC Ltd | Public | Parent | India | 5,539 | 2,251 | |
| Husqvarna AB | Public | Parent | Sweden | 14,371 | 5,343 | |
| Blue Diamond Growers | Private | Independent | United States of America | XYZ | XYZ | |
| Blue Nile Inc | Private | Subsidiary (of Signet Jewelers Ltd) | United States of America | 450 | XYZ | |
| Diamond Power Infrastructure Ltd | Public | Parent | India | XYZ | XYZ | |
| Prataap Snacks Ltd | Public | Parent | India | XYZ | XYZ | |
| PT Diamond Food Indonesia Tbk | Public | Independent | Indonesia | XYZ | XYZ | |
| Diamond Building Products Public Co Ltd | Public | Independent | Thailand | XYZ | XYZ | |
| Diamond Digital | Private | Independent | Switzerland | XYZ | XYZ | |
| Diamond Oil Company | Private | Independent | United States of America | XYZ | XYZ | |
| Diamond Offshore Drilling Inc | Public | Subsidiary (of Loews Corp) | United States of America | 2,100 | 841 | |
| Hilti Corp | Private | Parent | Liechtenstein | 29,549 | 6,727 | |
| Diamond V Mills Inc | Private | Independent | United States of America | XYZ | XYZ | |
| Diamond Standard Co. | Private | Independent | United States of America | XYZ | XYZ | |
| Diamond Power Corp | Private | Subsidiary (of Chubu Electric Power Co Inc ) | Japan | XYZ | XYZ | |
| Diamond Companhia de Seguros SA | Private | Subsidiary (of NicozDiamond Insurance Ltd ) | Mozambique | XYZ | XYZ | |
| Apex Jewellers Ltd. | Private | Independent | United Kingdom | XYZ | XYZ | |
| Diamond International Exploration Inc | Private | Independent | Canada | XYZ | XYZ | |
| Diamond Services Corp | Private | Independent | United States of America | XYZ | XYZ | |
| Newfield Resources Ltd | Public | Parent | Australia | XYZ | 1 | |
| Kallo Inc | Public | Independent | Canada | XYZ | XYZ | |
| Matrix Diamond Tools | Private | Subsidiary (of Blades Direct LLC ) | United States of America | XYZ | XYZ | |
| Koura Fine Diamond Jewelry Ltd | Private | Independent | India | XYZ | XYZ | |
| Black Diamond Therapeutics Inc | Public | Parent | United States of America | 65 | XYZ | |
| Lipari Diamond Mines Ltd | Private | Brazil | XYZ | XYZ | ||
| Diamond IP | Private | Subsidiary (of Cygna Labs Corp ) | United States of America | XYZ | XYZ | |
| PT Diamond Citra Propertindo Tbk | Public | Independent | Indonesia | XYZ | XYZ | |
| Plandai Biotechnology Inc | Public | Independent | United States of America | XYZ | XYZ | |
| Chow Tai Fook Jewellery Group Ltd | Public | Subsidiary (of Chow Tai Fook (Holding) Limited ) | Hong Kong | 28,900 | 12,092 | |
| Diamond Energy Services Inc | Private | Independent | Canada | XYZ | XYZ | |
| Diamond K-Agros International Inc | Private | Independent | Philippines | XYZ | XYZ | |
| Diamond Schmitt Architects | Private | Independent | Canada | XYZ | XYZ | |
| Rio Tinto Coal Australia Pty Ltd | Private | Subsidiary (of Rio Tinto) | Australia | XYZ | XYZ | |
| XTRA Bitcoin Inc | Public | Independent | United States of America | XYZ | XYZ | |
| Diamond Castle Holdings LLC | Private | Independent | United States of America | XYZ | XYZ | |
| Diamond Mowers Inc | Private | Independent | Sweden | XYZ | XYZ |
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