| Comprehensive Mathematics Instruction | Academic & Science |
| Center for the Mathematics of Information | Academic & Science |
| Chennai Mathematical Institute | Academic & Science |
| Cambridge–MIT Institute | Academic & Science |
| College of the Marshall Islands | Academic & Science |
| China Maritime Institute | Academic & Science |
| Campus Ministry International | Academic & Science |
| Caribbean Meteorological Institute | Academic & Science |
| Champaign (il) | Airport Code |
| Consejo Mundial de Iglesias | Associations & Organizations |
| Crisis Management Initiative | Associations & Organizations |
| Consumer Marketing Initiative | Business |
| Chicago Music Industries | Business |
| Chicago Musical Instruments | Business |
| Cleartone Musical Instruments | Business |
| California Modified Imports | Business |
| Creating Memorable Images | Business |
| CMI, LTD. | Business |
| Correctional Management Inc | Business |
| Claims Management Inc | Business |
| Content Marketing Institute | Business |
| Container Marketing Inc | Business |
| Community Management Inc | Business |
| Chiang Mai Initiative | Business |
| Cockerill Maintenance & Ingénierie | Business |
| Chimei Innolux Corporation | Business |
| Computer Memories Inc. | Business |
| Crew Maintenance and Insurance | Business |
| Certified Master Inspectors | Business |
| C M I Corporation of Oklahoma | Business |
| Commerce Management Interface | Business |
| Credit Mediators Inc | Business |
| Corvair Minnesota, Inc. | Business |
| Common Merit Increase | Business |
| Cleaning Management Institute | Business Management |
| Management Inc | Business Management |
| Configuration Management Inc | Business Management |
| Certified Master Inspector | Certifications |
| Christliche Musik Initiative | Community |
| Club Management Institute | Community |
| Culture and Media Institute | Community |
| Computer Music Instrument | Community |
| Communications Media Inc | Community |
| Computer Musical Instrument | Community |
| Communications & Management Institute | Community |
| Computer Managed Instruction | Community |
| Controlled Mode Idle | Computer and Networking |
| Clobber Monitor Immediate | Computer Assembly Language |
| Component Model Infrastructure | Computer Hardware |
| Cannot Make It | Computing |
| Coded Mark Inversion | Computing |
| Command Message Interface | Computing |
| Connection Management Interface | Computing |
| Common Management Information | Computing |
| Corrective Measures Implementation | Computing |
| Cisco Messaging Interface | Computing |
| Compare Match Interrupt | Computing |
| Configuration Management Initiative | Computing |
| California Microwave Incorporated | Electronics |
| Confederation Military Intelligence | General |
| Cold Meat Industry | General |
| Cruel Memory Institution | General |
| ChessMates, Inc., Newark, New Jersey | General |
| Centro de Mídia Independente | General |
| Credit Managers Index | General |
| Chicago Music Instruments | General |
| Carmelites of Mary Immaculate | General |
| Communication Media And Information | General |
| Cockerill Maintenance Ingenierie | General |
| Carbon Mitigation Initiative | General |
| Collaborative Managed Inventory | General |
| Cuadro de Mando Integral | General |
| Collagen Meniscus Implant | General |
| Competitive Manufacturing Initiative | General |
| Campbell Motor Industries | General |
| Conditional Mutual Information | General |
| Club Mini Italia | General |
| Creation Ministries International | General |
| Club Marcos International | General |
| Cummins Inc. | General |
| Continental Micronesia | General |
| Center for Mediterranean Integration | General |
| Consumer Market Insight | General |
| Count Me In | General |
| Canadian Motor Industries | General |
| Club Motori Italia | General |
| Carolina Musculoskeletal Institute | Governmental |
| Critical Materials Institute | Governmental |
| Chr Michelsen Institute | Governmental |
| Can Manufacturers Institute | Governmental |
| California Military Institute | Governmental |
| Chartered Management Institute | Governmental |
| Case Mix Index | Healthcare |
| Champaign Airport code. Willard Airport. Illinois, USA. | International |
| Council-certified Microbial Investigator | Jobs |
| Certified Mechanical Inspector | Jobs |
| Certified Medical Illustrator | Jobs |
| Clay Mathematics Institute | Maths |
| Consumer Medication Information | Medical |
| Cell Mediated Immunity | Medical |
| Chronic Mental Illness | Medical |
| Chronic multisymptom illness | Medical |
| Certification for Medical Interpreters | Medical |
| Consumer Medicine Information | Medical |
| Center for Medical Innovation | Medical |
| University of Illinois Willard Airport, Champaign-Urbana, Illinois USA | Regional |
| Capi (cryptography Application Programming Interface) Messaging Interface | Softwares |
| Content Management Interface | Technology |
| Continental Micronesia, Inc. | Transport & Travel |
