| CE&IS | Combined Elements and Integration Systems 
| Others |
| CEIS | Canadian Economic Impact Study
| Others |
| CEIS | Canadian Environmental Industry Strategy
| Others |
| CEIS | Career and Education Information Services
| Others |
| CEIS | Career Education and Information Services
| Others |
| CEIS | Career Education in Ibm Software
| Others |
| CEIS | Caribbean Energy Information System
| Others |
| CEIS | Center for Educational Innovation and Scholarship
| Others |
| CEIS | Center for Emerging and Innovative Sciences
| Others |
| CEIS | Center for Engineering Innovation and Sciences
| Others |
| CEIS | Center for Entrepreneurship and Innovation Studies
| Others |
| CEIS | Center for Environmental Information and Statistics
| Others |
| CEIS | Certification for Early Intervention Specialists
| Others |
| CEIS | certification of Early Intervention Specialists
| Others |
| CEIS | Certified Early Intervention Specialist
| Others |
| CEIS | College of Education and Integrative Studies
| Others |
| CEIS | Combined Elements and Integrated Systems
| Others |
| CEIS | Community Electronic Information Signs
| Others |
| CEIS | Continuing Education Information System
| Others |
| CEIS | Continuing Education Insurance School
| Others |
| CEIS | Coordinated early intervening
| Others |
| CEIS | Coordinated Early Intervening Services
| Others |
| CEIS | Coordinating Early Intervening Services
| Others |
| CEIS | Corporate Employee Information System
| Others |
| CEIS | Corporate Executive Information System
| Others |
| CEIS | Cultural Engagement and International Services
| Others |