| CEIG | Cambridge Education International Group 
| Others |
| CEIG | Career Education Information and Guidance
| Others |
| CEIG | Careers Education Information and Guidance
| Others |
| CEIG | Center of Excellence in Infection Genomics
| Others |
| CEIG | Centre for Enterprise Innovation and Growth
| Others |
| CEIG | Certified Expert Identity Governance
| Others |
| CEIG | Chief Electrical Inspector to Government
| Others |
| CEIG | Christian Ethical Investment Group
| Others |
| CEIG | Colegiul Economic Ion Ghica
| Others |
| CEIG | College of Engineering Imaging Group
| Others |
| CEIG | Community Environmental Improvement Grant
| Others |
| CEIG | Comparative Education Interest Group
| Others |
| CEIG | Confidential Establishment Information Gathering
| Others |
| CEIG | Core European Implementation Guidelines
| Others |
| CEIG | Cyberspace Engineering Installation Group
| Others |