- Catalysis,S.L.
| Испания | - Centr mody "Medstilservis", PFK
| Rusia | - CENTR-KONTUR, OOO
| Rusia | - Centralnoe konstruktorskoe byuro tyazhelogo mashinostroeniya, FGUP
| Rusia | - Centrodorstroy ASTAR, OOO
| Rusia | - Centrotransstroy, OAO
| Rusia | - Centrotranstehmontazh, OAO
| Rusia | - CHastnoe ohrannoe predpriyatie "Russkaya ohrana", OOO
| Rusia | - CHeboksarsky elektroapparatny zavod, OAO
| Rusia | - CHeboksarsky priborostroitelny zavod "Elara", AO
| Rusia | - CHelyabinsky mehanichesky zavod, OAO
| Rusia | - CHelyabinsky traktorny zavod, OAO
| Rusia | - CHelyabinsky truboprokatny zavod, AOOT
| Rusia | - CHelyabinsky zavod metallokonstrukciy, AOZT
| Rusia | - CHerepovecky staleprokatny zavod, OAO
| Rusia | - CHerkassky zavod "Strommashina", AOZT
| Ukrania | - CHerkizovsky molochny zavod, OAO
| Rusia | - CHOO "Sfinks Alyans", OOO
| Rusia | - CHusovskoy metallurgichesky zavod, OAO
| Rusia | - CKB tyazhelogo mashinostroeniya
| Rusia | - CKIB SSO, filial GUP KB priborostroeniya
| Rusia | - COKBleshozmash, FGUP MPR Rossii
| Rusia | - Company "Mir", Ltd
| Rusia | - Computer modelling laboratory, Ltd
| Rusia | - CONTACT GmbH
| Alemania | - Cork-S
| Rusia | - CTA-Press
| Rusia | - CtCt, ZAO
| Rusia |
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