| Kiweez | Puy-de-Dôme |
| Kiwi Backup | Haut-Rhin |
| Kiwi Fraise | |
| Kiwi Interactive | Savoie |
| Kiwilab | Doubs |
| Kiwip Technologies S.A.S. | |
| Kizoa | Paris |
| Klaim | |
| Klanik | |
| Klap | |
| Klara | |
| Klassroom S.A.S. | |
| Klaxoon | |
| KLB Group | Seine-Saint-Denis |
| Klee Commerce | Hauts-de-Seine |
| Klee Group | |
| Klee Studio | Sarthe |
| KleinBlue | |
| Klineo | |
| Klixi | |
| Klorofile | Haute-Savoie |
| KLS Group | Isère |
| Knave S.A.S. | Paris |
| KNDesigns | Gironde |
| Knowledge Places | Seine-Saint-Denis |
| KnowledgeConsult | Val-de-Marne |
| Knowllence | Val-de-Marne |
| KNR Agency | |
| Kobalt Consultants | |
| Koban | |
| Kobble | |
| Kobojo | Paris |
| Kocliko | |
| KODE68 | Haut-Rhin |
| KodKodKod Studio | |
| Koelis | |
| Koesio | Drôme |
| Kolivi Solutions | |
| KOM1 : Agence Créative | Nord |
| Kombo | |
| Komdan S.A.S. | |
| Komeo | Nord |
| Kompassify | |
| Komposite | Seine-Saint-Denis |
| Konect S.A.S. | Haute-Garonne |
| Kontact | Nord |
| Konverso | |
| Koober | |
| KOOKline | Loire-Atlantique |
| Koovea | |