| KATAL LIMITED | Private company limited by shares | Dissolved |
| KATALECO & FILHOS LIMITED | Private company limited by shares | Live |
| KATALEEST LIMITED | | Live |
| Katalis Digital Limited | Private company limited by shares | Live |
| KATALISA GROUP LIMITED | | Live |
| KATALITO LIMITED | | Live |
| Katalogue Engineering Limited | Private company limited by shares | Live |
| Katalpa Limited | Private company limited by shares | Live |
| KATALYST LIMITED | Private company limited by shares | Live |
| KATALYST X LIMITED | Private company limited by shares | Live |
| Katalyst AI Limited | | Live |