Graphene Manufacturer Ranking *Including some distributors, etc. Ranking as of September 2025 Derivation Method Rank Company Click Share 1 Carbon Rivers 40.1% 2 MATEXCEL 11.8% 3 NanoIntegris Technologies, Inc. 9.3% 4 Alfa Chemistry 7.3% 5 Goodfellow 7.3% 6 Nanotech Energy 7.1% 7 Reade Advanced Materials 4.7% 8 Graphene Flagship 4.0% 9 MilliporeSigma 3.4% 10 NIPPON SHOKUBAI CO., LTD. 3.4%