| Europe/Middle East/Africa | Company | Country | ISO 17020 / 17025 |
| Antwerpen | Covestro NV | Belgium |  |
| Leverkusen | Covestro Deutschland AG | Germany | |
| Europe/Middle East/Africa | Company | Country | EfbV |
| Brunsbüttel | Covestro Deutschland AG | Germany | |
| Europe/Middle East/Africa | Company | Country | EFfCI |
| Dormagen | Covestro Deutschland AG | Germany | |
| Europe/Middle East/Africa | Company | Country | Kosher |
| Brunsbüttel | Covestro Deutschland AG | Germany | |
| Dormagen | Covestro Deutschland AG | Germany |  |
| Uerdingen | Covestro Deutschland AG | Germany | |
| Leverkusen | Covestro Deutschland AG | Germany | |
| Tarragona | Covestro S.L. | Spain | |
| Asia Pacific | Company | Country | Kosher |
| Caojing | Covestro Ltd. | China | |
| Americas | Company | Country | Kosher |
| Baytown | Covestro LLC | USA |  |
| Americas | Company | Country | ISO 17025 |
| Pittsburgh | Covestro LLC | USA | |
| Americas | Company | Country | RC / SCC |
| Baytown | Covestro LLC | USA | |