| Kirk-Burnnand Family Trust | Unknown | - | - | councillor interest |
| Kirk-Burnnand Family Trust No. 2 | Unknown | - | - | councillor interest |
| KIRKPATRICK CONSULTING AND EQUESTRIAN SERVICES LIMITED | Registered | - | - | |
| Kirsten Sabina HAGAN | Registered | Sole Trader | - | government contract suppliers |
| Kit & Leanne Maling Family Trust | Unknown | - | - | councillor interest |
| KIWA DIGITAL LIMITED | Registered | NZ Limited Company | 1466375 | government contract suppliers |
| KIWI BOTS MEDICS LIMITED | Registered | NZ Limited Company | 9374616 | corporate donations |
| KIWI CAN DO LIMITED | Registered | - | - | |
| KIWI CARPENTRY NORTHLAND LIMITED | Registered | NZ Limited Company | 6987516 | government contract suppliers |
| KIWI COUNTRY LIMITED | Registered | - | - | |
| KIWI CRUNCH ORCHARDS LIMITED | Registered | NZ Limited Company | 1772089 | kanoa recipients |
| Kiwi Designer Homes Partnership - KDH (SM) Limited and KDH (DB) Limited | Unknown | - | - | government contract suppliers |
| KIWI EMPIRE CONFECTIONERY LIMITED | Registered | - | - | |
| KIWI FIELD CREW LIMITED | Registered | NZ Limited Company | 6849214 | government contract suppliers |
| KIWI GAMING FOUNDATION LIMITED | Registered | NZ Limited Company | 3512551 | councillor interest |
| KIWI KRAJCO LIMITED | Registered | NZ Limited Company | 6264626 | councillor interest |
| KIWI NORTH (EIGHT) LIMITED | Removed | NZ Limited Company | 567207 | councillor interest |
| KIWI PROPERTY GROUP LIMITED | Registered | - | - | |
| KIWI STAFF LIMITED | Registered | NZ Limited Company | 5103421 | government contract suppliers |
| KIWIBANK LIMITED | Registered | - | - | |
| KIWIBIDDER LIMITED | Registered | NZ Limited Company | 9198720 | government contract suppliers |
| KIWIBUILT CONSTRUCTION LIMITED | Registered | NZ Limited Company | 4238838 | government contract suppliers |
| KIWICENTRIC 2018 LIMITED | Registered | NZ Limited Company | 4909560 | government contract suppliers |
| KiwiClass Multicultural Support Service | Unknown | - | - | government contract suppliers |
| KIWICRANKS LIMITED | Registered | - | - | |
| KiwiHarvest | Registered | NZ Limited Company | - | corporate donations |
| KIWIPHONE LIMITED | Registered | NZ Limited Company | 1570190 | councillor interest |
| KIWIRAIL HOLDINGS LIMITED | Registered | NZ Limited Company | 4045602 | kanoa recipients |
| KIWIRAIL LIMITED | Registered | NZ Limited Company | 487638 | councillor interest |
| KIWISAVER NZ LIMITED | Removed | NZ Limited Company | 1642213 | councillor interest |
| KL and JR Shirley Family Trust | Unknown | - | - | councillor interest |
| KLEENRITE (WELLINGTON) LIMITED | Registered | NZ Limited Company | 1036460 | government contract suppliers |
| KLEIN LIMITED | Registered | NZ Limited Company | 900959 | government contract suppliers |
| KMA LIMITED | Registered | NZ Limited Company | 1156879 | councillor interest |
| KMF Investments Ltd | Registered | NZ Limited Company | - | government contract suppliers |
| KMKT Trust | Unknown | - | - | mp interest |
| KMOT LIMITED | Removed | NZ Limited Company | 6245911 | iwi subsidiaries |
| KMPG LIMITED | Registered | NZ Limited Company | 9363068 | charity service providers |
| KMS 1992 LIMITED | Registered | NZ Limited Company | 5799787 | councillor interest |
| KMS Family Trust | Unknown | - | - | councillor interest |
| KNAGGS CONSTRUCTION LIMITED | Registered | NZ Limited Company | 115057 | government contract suppliers |
| KNEE DEEP INVESTMENTS LIMITED | Registered | NZ Limited Company | 2318829 | councillor interest |
| KNIGHTS POINT AIR LIMITED | Registered | NZ Limited Company | 2342771 | government contract suppliers |
| Knightsbridge Furniture | Unknown | - | - | government contract suppliers |
| KNOW THE RULE LIMITED | Registered | NZ Limited Company | 6976953 | government contract suppliers |
| KNOX CONSULTANTS LIMITED | Registered | NZ Limited Company | 9367569 | government contract suppliers |
| KNUCKLES LIMITED | Registered | NZ Limited Company | 7887725 | government contract suppliers |
| Knud E. Hansen | Unknown | - | - | government contract suppliers |
| KNZB LIMITED | Removed | NZ Limited Company | 3229348 | councillor interest |
| KO TANE LIMITED | Registered | NZ Limited Company | 1277625 | government contract suppliers |
