| Abbreviation | Definition |
|---|---|
| KAC | Kidderminster Alarm Company |
| KAC | Knights Armament Company |
| KAC | Kuwait Airways Corporation |
| KACI | Katayama American Co Inc |
| KACL | Kitanihon Acetylene Company, Ltd. |
| KAD | Key Advantages and Disadvantages |
| KAEC | Kaiser Aerospace and Electronics Corporation |
| KAFCO | Karnaphuli Fertilizer Company Limited |
| KAHC | Kalamazoo Area Housing Corporation |
| KAI | Kadant, Inc. |
| KAI | Kay and Associates, Inc. |
| KAI | Keiper & Associates, Inc. |
| KAI | Keiper & Associates, Incorporated |
| KAI | Kingsway America Inc |
| KAIC | Karnataka Agro Industries Corporation |
| KAIC | Komatsu America International Company |
| KAII | Kaiser Aluminum International Inc |
| KAII | Kurzweil Applied Intelligence Inc |
| KAL | Korean Air Lines |
| KANCO | Kansas Co-op Organic farming |