| Cerento | Wyoming |
| Ceres Logic, LLC | Maine |
| Ceres Nanosciences, Inc. | |
| Ceres Technology, Inc. | Texas |
| Ceresa, Inc. | |
| CereSoft, Inc. | Maryland |
| CereSpir, Inc. | |
| Ceretype Neuromedicine | Massachusetts |
| Cerevance | Massachusetts |
| CereVasc, Inc. | Massachusetts |
| Cerfe Labs, LLC | |
| CerFlux | Alabama |
| Ceria Therapeutics | |
| Ceribell | California |
| Ceridian HCM, Inc. | Minnesota |
| Cerilliant | |
| Cerium Labs | Texas |
| Cerium Networks | Washington |
| Cerium Pharmaceuticals | |
| Cerium Technology Ventures, LLC | Texas |
| Cermak Technologies, Inc. | Pennsylvania |
| Cermate Technologies Inc. | |
| Cermetek Microelectronics | California |
| Cerno Bioscience | Nevada |
| CERo Therapeutics, Inc. | |
| Cerora, Inc. | Pennsylvania |
| Ceros, Inc. | |
| Cerovations, LLC | |
| Cerovene | |
| Cerritos College | California |
| Cert-In Software Systems, Inc. | North Carolina |
| Certain Affinity, Inc. | Texas |
| Certain, Inc. | California |
| Certainly Health, Inc. | |
| Certara | Pennsylvania |
| CerTek Software Designs, Inc. | Florida |
| Certemy, Inc. | California |
| Certes Networks, Inc. | Pennsylvania |
| CertGear, Inc. | California |
| Certica Solutions | Massachusetts |
| Certification Academy, Inc. | |
| Certification Partners | Arizona |
| CertificationKits.com | Illinois |
| CertifiD, Inc. | |
| Certified Code, Inc. | |
| Certified GeneTool, Inc. | California |
| Certified Laboratories | New York |
| Certified NETS, Inc. | Missouri |
| Certified Network Systems | Maine |
| Certified Scientific Software | Massachusetts |