| Yusufhj Limited | Administrative & support | 2012 |
| Yutols Ltd | Manufacturing | 2026 |
| Yuva Minds Ltd | Information & communication | 2020 |
| Yuvam BI Consultancy Limited | Information & communication | 2011 |
| Yuzhmash International Co Limited | Manufacturing | 2021 |
| YVR Properties Ltd | Real estate | 2024 |
| Yvsr Ltd | Construction | 2026 |
| Yxng Rottweiler Ltd | Wholesale & retail | 2021 |
| YYC Management and Consulting Limited | Professional & scientific | 2024 |
| Yyf&H Ltd | Wholesale & retail | 2023 |
| YZ Rental Properties Limited | Real estate | 2024 |
| Z & DN Ltd | Real estate | 2025 |
| Z & M Property Investments Limited | Real estate | 2024 |
| Z & Z Security Ltd | Construction | 2016 |
| Z a Utilities Limited | Energy | 2013 |
| Z Coms Ltd | Information & communication | 2026 |
| Z Data Consultancy Ltd | Extraterritorial | 2024 |
| Z H & M H Ltd | Real estate | 2017 |
| Z H & M H Medical Services Ltd | Health & social care | 2022 |
| Z Hayes Ltd | Hospitality | 2024 |
| Z Minhas Traders Limited | Wholesale & retail | 2026 |
| Z Plus Solutions Ltd | Real estate | 2020 |
| Z S Double Glazing Ltd | Construction | 2018 |
| Z S K Investments Ltd | Real estate | 2015 |
| Z Square Solutions Ltd | Wholesale & retail | 2024 |
| Z&B Groups Ltd | Wholesale & retail | 2026 |
| Z&J Property Ltd | Real estate | 2020 |
| Z&S Transport and Services Ltd | Transport & logistics | 2025 |
| Z&Z Services Ltd | Construction | 2021 |
| Z.H Property Group Ltd | Real estate | 2025 |
| Z.H. Cuisines PVT. Limited | Hospitality | 2026 |
| Z.K Burgers & Grill Ltd | Hospitality | 2026 |
| Z1 Property Investments Ltd | Real estate | 2025 |
| Z3R0 SET Ltd | Wholesale & retail | 2026 |
| Z7X Planning Ltd | Professional & scientific | 2025 |
| Z9 Builders Ltd | Construction | 2025 |
| ZA Appliances & Repairing Services Ltd | Wholesale & retail | 2023 |
| ZA Engineering Services Ltd | Manufacturing | 2024 |
| ZA Furniture Limited | Wholesale & retail | 2018 |
| ZA Global Ecom Ltd | Wholesale & retail | 2026 |
| ZA Private Limited | Wholesale & retail | 2021 |
| Zaapp Food & Snack Limited | Hospitality | 2026 |
| Zaavia Design Limited | Professional & scientific | 2017 |
| Zaavia Group Ltd | Real estate | 2018 |
| Zaavia Ltd | Professional & scientific | 2021 |
| ZAAYRA18 Ltd | Wholesale & retail | 2023 |
| Zaaz Property LLP | | 2019 |
| Zaba Collection Ltd | Wholesale & retail | 2019 |
| Zabi UL Hassan Limited | Wholesale & retail | 2024 |
| Zabnis Technology Limited | Information & communication | 2025 |
| Zabraj Hill Ltd | Wholesale & retail | 2008 |
| Zabs Property Management & Maintenance Ltd | Construction | 2025 |
| Zack's Investments Ltd | Real estate | 2013 |
| ZACSOL360 Ltd | Wholesale & retail | 2024 |
| ZAF Tech Ltd | Administrative & support | 2024 |
| Zafa Associates Limited | Professional & scientific | 2025 |
| Zafak Kansas T/A Kansas Chicken & Pizza Ltd | Hospitality | 2026 |
| Zafraj Ltd | Health & social care | 2025 |
| Zafs Solutions Limited | Professional & scientific | 2019 |
| Zahami Services Limited | Real estate | 2023 |
| Zaheer Abbas Limited | Education | 2019 |
| Zahid Chauffeur Limited | Transport & logistics | 2024 |
| Zahid Digital Hub Ltd | Wholesale & retail | 2026 |
| Zahir Global Ltd | Education | 2020 |
| Zahra Accountants Limited | Professional & scientific | 2011 |
| Zahra Grill and Restaurant Limited | Hospitality | 2024 |
| Zahra Halal Foods Ltd | Wholesale & retail | 2026 |
| Zahra Take Away Food Ltd | Hospitality | 2026 |
| Zahrah Services Ltd | Administrative & support | 2024 |
| ZAI Investments Limited | Real estate | 2018 |
| Zaib Enterprise (UK) Limited | Wholesale & retail | 2022 |
| Zaid News Ltd | Administrative & support | 2016 |
| Zaid Security Limited | Administrative & support | 2022 |
| Zaim's FM Limited | Hospitality | 2025 |
| Zain Capital Ltd | Real estate | 2022 |
| Zain Crest Solutions Ltd | Information & communication | 2025 |
| Zain Medics Limited | Health & social care | 2014 |
| Zainab Khan Beauty Ltd | Other services | 2019 |
| Zainab Retails Limited | Wholesale & retail | 2023 |
| ZAK ASH Property Maintenance Ltd | Construction | 2026 |
| ZAK Car Hire Limited | Transport & logistics | 2017 |
| ZAK Ibrahim Ltd | Wholesale & retail | 2024 |
| ZAK Shukur Limited | Professional & scientific | 2013 |
| Zakaria Private Hire Limited | Other services | 2018 |
| Zakco Limited | Hospitality | 2022 |
| Zakelias Ltd | Information & communication | 2014 |
| Zakey Limited | Transport & logistics | 2021 |
| Zakir Trading Limited | Wholesale & retail | 2024 |
| Zakir Wali's Kitchen Ltd | Hospitality | 2023 |
| Zakish Ltd | Wholesale & retail | 2021 |
| Zakk Associates and Solicitors Limited | Professional & scientific | 2017 |
| Zakria Brothers Limited | Wholesale & retail | 2025 |
| Zalek Locuming Limited | Health & social care | 2025 |
| Zalice Limited | Professional & scientific | 2003 |
| ZAM & ZAM Traders Limited | Other services | 2022 |
| ZAM Consultancy Limited | Health & social care | 2011 |
| ZAM Developers Limited | Construction | 2024 |
| ZAM Financing Ltd | Financial services | 2016 |
| ZAM ZAM Cafe and Restaurants Ltd | Hospitality | 2025 |
| ZAM ZAM London Projects Ltd | Hospitality | 2025 |