| Acronym | Definition |
|---|
| ACI➣Airports Council International (formerly Airport Associations Coordinating Council) |
| ACI➣American Concrete Institute |
| ACI➣American Conference Institute (New York, NY) |
| ACI➣Anderson Cancer Institute (Savannah, GA) |
| ACI➣Application Centric Infrastructure (Cisco) |
| ACI➣Air Charter International (Dubai, United Arab Emirates) |
| ACI➣Autologous Chondrocyte Implantation |
| ACI➣Automobile Club d'Italia |
| ACI➣Arts and Creative Industries (UK) |
| ACI➣American Color Imaging (Cedar Falls, IA) |
| ACI➣Access Control Information |
| ACI➣American Cleaning Institute (formerly Soap and Detergent Association) |
| ACI➣Arch Coal Inc |
| ACI➣Asian Classics Institute (New York, NY) |
| ACI➣Air Control Industries, Ltd. (UK) |
| ACI➣Audit Committee Institute |
| ACI➣Approved Course of Instruction |
| ACI➣Alianza Cooperativa Internacional (Spanish) |
| ACI➣Autodesk Certified Instructor (software) |
| ACI➣Ashmore and Cartier Islands |
| ACI➣Autodesk Certified Instructor |
| ACI➣Audio Codec Interface |
| ACI➣Advanced Commercial Information |
| ACI➣Add with Carry Immediate |
| ACI➣American Competitiveness Initiative (US government) |
| ACI➣American Century Investments (Kansas City, MO) |
| ACI➣Anaemia of Chronic Inflammation |
| ACI➣Air Crash Investigations (videos) |
| ACI➣American Cinema International (entertainment company; Van Nuys, CA) |
| ACI➣Azione Cattolica Italiana |
| ACI➣Association Cambiste Internationale (French: International Broker Association; France) |
| ACI➣Anderson Cascade Impactor (medical equipment) |
| ACI➣Allied Construction Industries (Cincinnati, OH) |
| ACI➣Action Concertée Incitative (French research program; Ministry of Research) |
| ACI➣Access Control Instruction (Netscape) |
| ACI➣Advance Cargo Information (various agencies) |
| ACI➣Activated Carbon Injection |
| ACI➣Alltel Communications Inc. |
| ACI➣Arizona Correctional Industries |
| ACI➣Amano Cincinnati, Inc. (Roseland, NJ) |
| ACI➣Adjacent Channel Interference |
| ACI➣Adult Correctional Institutions (Nebraska) |
| ACI➣Alliance Coopérative Internationale |
| ACI➣Andean Counterdrug Initiative |
| ACI➣Audio Concepts, Inc. |
| ACI➣Avataq Cultural Institute |
| ACI➣Academic Conferences International (UK) |
| ACI➣American Consumer Institute |
| ACI➣Association of Construction Inspectors (Palm Springs, CA) |
| ACI➣American Competitiveness Institute (Philadelphia, PA, USA) |
| ACI➣Action Catholique des Milieux Indépendants (French: Catholic Action of Independent Media) |
| ACI➣Auto Collision, Inc. (Jessup, MD) |
| ACI➣Advanced Communications Incorporated (Canton, MI) |
| ACI➣Active Cellular Immunotherapy (cancer treatment) |
| ACI➣American Credit Indemnity (insurance) |
| ACI➣Automation Creations, Inc (Blacksburg, Virginia) |
| ACI➣Advanced Commercial Information (Canada) |
| ACI➣Aquitaine Création Investissement (French investment company) |
| ACI➣Advanced Concepts, Inc. (Columbia, MD) |
| ACI➣Applied Computational Intelligence |
| ACI➣Anglican Communion Institute (Beaumont, TX) |
| ACI➣Advancing the Consumer Interest (American Council on Consumer Interests) |
| ACI➣Adriatic Croatia International (Club and Nautical Tourism Company) |
| ACI➣Aurora Cable Internet |
| ACI➣Asset Condition Index |
| ACI➣Anti-Corruption Initiative (various locations) |
| ACI➣Accusativus Cum Infinitivo |
| ACI➣Association des Chercheurs Iraniens (French: Association of Iranian Researchers) |
| ACI➣Applied Communications Inc. |
| ACI➣Advanced Concepts Initiative (US DoD) |
| ACI➣Albertson College of Idaho |
| ACI➣Autonomy Content Infrastructure |
| ACI➣Association Cartographique Internationale (French: International Cartographic Association) |
| ACI➣Africa Consultants International (Senegal) |
| ACI➣America's Career Infonet |
| ACI➣Automatic Channel Installation |
| ACI➣Adult Correctional Institute (Rhode Island) |
| ACI➣Association for Conservation Information |
| ACI➣Animal Cruelty Investigations |
| ACI➣Accountability, Compliance and Integrity (Maryland) |
| ACI➣Accelerometer Interface (physics) |
| ACI➣AutoCAD Color Index |
| ACI➣Amicale Citroën Internationale (French car enthusiast association) |
| ACI➣Alloy Casting Institute |
| ACI➣American Culinary Institute |
| ACI➣American Conservative Union (Alexandria, VA) |
| ACI➣Association of Christian Investigators (San Antonio, TX) |
| ACI➣Allocated Configuration Identification |
| ACI➣Augmentative Communication Inc. |
| ACI➣Appeals Coordinated Issue (US IRS) |
| ACI➣Acute Coronary Insufficiency |
| ACI➣Analytical Condition Inspection |
| ACI➣American Combustion Industries Inc. |
| ACI➣Advanced Consulting and Inspection, LLC (Lakeville, MN) |
| ACI➣Air Combat Intelligence (US DoD) |
| ACI➣Alderney, Channel Islands, United Kingdom - The Blaye (Airport Code) |
| ACI➣Aero Club of India (New Delhi, India) |
| ACI➣Administratively Controlled Information |
| ACI➣Agincourt Collegiate Institute (Agincourt, Ontario, Canada high school) |
| ACI➣Advantest Component, Inc. (Japan) |
| ACI➣Additional Circuit Information |
| ACI➣Ann Clark Associates |
| ACI➣Agrifood Consulting International |
| ACI➣Allied Continental Intermodal (UK) |
| ACI➣Assign Call Inhibit |
| ACI➣Automatic Component Insertion |
| ACI➣Associative Computing, Inc. (now Associative Cognition, Inc.) |
| ACI➣Actual Cost Incurred |
| ACI➣Advertising Council, Inc. |
| ACI➣Apple Computer, Incorporated |
| ACI➣Advantage Consulting Inc (Annandale, VA) |
| ACI➣Agribusiness Council of Indiana |
| ACI➣American Chemical, Inc. (Texas and Minnesota) |
| ACI➣Advanced Computing Initiative |
| ACI➣Alianza Contra la Impunidad (Spanish: Alliance Against Impunity, Guatemala) |
| ACI➣African Cultural Initiatives |
| ACI➣Air Caledonie, New Caledonia (ICAO code) |
| ACI➣Accelerated Capability Initiative |
| ACI➣Automatic Card Identification |
| ACI➣Automated Criminal Investigation |
| ACI➣American College Institute (Izmir, Turkey high school) |
| ACI➣After Care Instructions (medical) |
| ACI➣Alexander Consulting, Inc. |
| ACI➣Airborne Controlled Intercept |
| ACI➣Access Channel Integration (HP) |
| ACI➣Acceptable Chronic Intake |
| ACI➣Airborne Control Intercept |
| ACI➣Aircraft Condition Inspection (US DoD) |
| ACI➣Apollo Computers, Incorporated |
| ACI➣Automatic Closure and Interlock |
| ACI➣Access Control Integration, Inc. (Memphis, TN) |
| ACI➣Active Community Initiative (UK) |
| ACI➣Asset Condition Inspection |
| ACI➣AT Command Interpreter |
| ACI➣Amplifier Control Intercommunications |
| ACI➣Anello Consulting Inc (Cocoa, FL) |
| ACI➣Air Controlled Intercept (CIS) |
| ACI➣Advanced Control Interface |
| ACI➣Architectural Communications, Inc. |
| ACI➣Access Communications Information |
| ACI➣Allocated Configuration Item |
| ACI➣Amplifier Control Inter-Communication |
| ACI➣Arensmeyer Communications, Inc. |
| ACI➣Automated Coding of Invoices |
| ACI➣Appraiser's Choice, Inc |
| ACI➣Arts and Curriculum Institute (Skidmore College; New York) |
| ACI➣Anixter Communication and Integration |
| ACI➣Age Concern Islington (UK) |
| ACI➣Associate Contractor Integration/Interface |
| ACI➣Advanced Consulting Incorporated (Monterey, CA) |
| ACI➣Agents Conseil Immobilier |
| ACI➣Accurate Contractors Inc |
| ACI➣Amherst Consulting Inc (South Portland, ME) |