| Navn | Postnummer | By |
|---|---|---|
| Kaeser Kompressorer AS | 1543 | Vestby |
| Karl M Gulbrandsen Stansefabrikk AS | 1466 | STRØMMEN |
| Kaspo Maskin AS | 7489 | TRONDHEIM |
| KH-Technic ApS | 2670 | Greve |
| Kiwa Norge | 0580 | Oslo |
| Klingspor A/S | 6000 | Kolding |
| Klüber Lubrication Nordic A/S | 2000 | Lillestrøm |
| KMC Ytbehandling AB | 175 62 | Järfälla |
| Korrosjons-Teknikk AS | 2013 | Skjetten |
| KTR Systems Norge AS | 2013 | Skjetten |
| KUKA Nordic Norway | 2860 | HOV |
| Kulelagerhuset AS | 3413 | LIER |
| KYOCERA Fineceramics Nordics AB | 164 40 | KISTA |