| ZG Hair Ltd | Other services | 2025 |
| Zhaf Consultants Ltd | Professional & scientific | 2019 |
| Zhanar Design Ltd | Professional & scientific | 2018 |
| Zhilov IT STR Limited | Wholesale & retail | 2021 |
| Ziaco Ltd | Professional & scientific | 2026 |
| Ziani Madkouri Ltd | Hospitality | 2024 |
| Zichukshealthcare Limited | Health & social care | 2023 |
| Ziclon PVT Limited | Information & communication | 2025 |
| Zimtsterne Limited | Information & communication | 2021 |
| Zinn Apartments (Aberdeen) Ltd | Real estate | 2016 |
| Zinn Serviced Aparments Limited | Hospitality | 2019 |
| Zinnayah Ltd | Real estate | 2025 |
| Zion Electrical Ltd | Other services | 2017 |
| Zioncraft Ltd | Arts & recreation | 2025 |
| Ziratopher Ltd | Manufacturing | 2023 |
| Ziwi Distribution Limited | Wholesale & retail | 2025 |
| ZK Logistics Group Ltd | Transport & logistics | 2025 |
| Zojughe Ltd | Wholesale & retail | 2016 |
| Zolflow Limited | Real estate | 1980 |
| ZONE2 Ltd | Professional & scientific | 2024 |
| Zoomology Ltd | Information & communication | 2022 |
| Zorro Limited | Other services | 2017 |
| Zotalia Engineering Consultants Ltd | Professional & scientific | 2019 |
| ZQ Nature's Way Herbal Medicine Limited | Other services | 2003 |
| ZRR Properties Ltd | Real estate | 2024 |
| Zuba Connect Ltd | Mining & quarrying | 2022 |
| Zufar Enterprises Ltd | Wholesale & retail | 2024 |
| Zulu Partners LLP | | 2010 |
| Zulus Abdn Ltd | Hospitality | 2023 |
| Zume Limited | Real estate | 2025 |
| Zygotelink Ltd | Agriculture & fishing | 2024 |
| ZYNQ360 (One) Limited | Professional & scientific | 2018 |
| ZYNQ360 Limited | Information & communication | 2016 |