| Name | Phone | Category |
| K & B Redemption Center | (515) 963-6396 | Environmental |
| Kabel Business Services | (515) 224-9400 | Finance |
| Kaleidoscoops Coffee Ice Cream and More | (515) 964-7479 | Restaurants |
| Karl Chevrolet | (515) 964-4255 | Automotive |
| KCCI - Channel 8 | (515) 247-8821 | Communications |
| KCWI/KDMI Television | (515) 964-2323 | Communications |
| Kelly Services, Inc. | (515) 282-0264 | Employment |
| Kennedy Chiropractic Office | (515) 965-3939 | Health Care |
| Kentucky Fried Chicken | (515) 964-3144 | Restaurants |
| Kimberley Development Corporation | (515) 963-8335 | Contractor |
| Kingdom Hoops | (515) 291-1542 | Entertainment-Recreation |
| Kirkendall Public Library | (515) 965-6460 | Libraries-Museums |
| Kiwanis Club of Ankeny | (515) 450-8425 | Organizations |
| Koch Brothers | (515) 244-4900 | Business Products |
| Koester, Kevin | (515) 963-9996 | Individual Membership |
| KOSAMA | (515) 965-4321 | Fitness |
| Krueger Chiropractic | (515) 964-5000 | Health Care |
| Kum & Go | (515) 965-6756 | Retail-Shops-Stores |
| Kum & Go | (515) 965-2090 | Retail-Shops-Stores |
| Kum & Go | (515) 289-0874 | Retail-Shops-Stores |
| Kum & Go, L.C. | (515) 226-0128 | Retail-Shops-Stores |
| Kyle's Bikes | (515) 965-0333 | Retail-Shops-Stores |