| Yardbury Engineering & Oilfield Products Limited | Manufacturing | 1992 |
| Yardley Programme Management Ltd. | Administrative & support | 2007 |
| Yarrow Management Limited | Real estate | 2017 |
| Yash+Paar Investments Ltd | Real estate | 2024 |
| Yasmin Taxi Ltd | Transport & logistics | 2025 |
| Yayisglamour Ltd | Other services | 2025 |
| YB Holding Ltd | Health & social care | 2021 |
| YB Ventures Ltd | Real estate | 2023 |
| YCO Corrosion Engineering Services Limited | Administrative & support | 2014 |
| YDE Homes Ltd | Construction | 2007 |
| YEE Service Ltd | Education | 2023 |
| Yelea Enterprises Limited | Administrative & support | 2005 |
| YEO and SHI Ltd | Real estate | 2025 |
| Yester Developments Limited | Construction | 2013 |
| Yester Estate Limited | Real estate | 2013 |
| YF Homes Limited | Real estate | 2025 |
| Yield OIL Limited | Mining & quarrying | 2014 |
| Yildiz Restaurant Ltd | Hospitality | 2022 |
| Yiss Ltd | Wholesale & retail | 2025 |
| YJC Foods Co. Ltd | Manufacturing | 2026 |
| YJM Limited | Agriculture & fishing | 2003 |
| YKY Consulting Limited | Professional & scientific | 2012 |
| YKY Properties Ltd | Real estate | 2025 |
| YMD Access Solutions Ltd | Construction | 2024 |
| Yogam Lights and Renewables Limited | Wholesale & retail | 2016 |
| Yomra 61 Limited | Hospitality | 2025 |
| Yoolow Developments Limited | Real estate | 2002 |
| Yorokobi by CJ Leisure Group Limited | Real estate | 2025 |
| Yorokobi by CJ Limited | Hospitality | 2009 |
| Yoruba Community Aberdeen | Other services | 2024 |
| YOU Know US Ltd | Information & communication | 2026 |
| Young Living (UK) Limited | Hospitality | 2024 |
| Youngson Auchronie Services Limited | Agriculture & fishing | 2018 |
| Younique Inclusion Ltd | Administrative & support | 2023 |
| Your Camper Limited | Manufacturing | 2013 |
| Your Good Choice Ltd | Manufacturing | 2025 |
| Your Independent Travel Agent Ltd | Administrative & support | 2019 |
| Your Love Rara Community Interest Company | Administrative & support | 2020 |
| Your Sky Story Ltd | Wholesale & retail | 2025 |
| Your Vision Building Services Ltd | Construction | 2019 |
| Your Wedding Exhibition Limited | Administrative & support | 2006 |
| Yourworksociety Community Interest Company | Administrative & support | 2026 |
| Ypda Aberdeen Limited | Wholesale & retail | 2023 |
| Ypda Limited | Real estate | 2025 |
| YS Enterprise Ltd | Wholesale & retail | 2023 |
| YS Properties Ltd | Real estate | 2025 |
| YS Turkish Catering Ltd | Hospitality | 2024 |
| Yt-Mal Ltd | Real estate | 2026 |
| Ythan TMI Ltd | Administrative & support | 2018 |
| YU Rentals Ltd | Real estate | 2025 |
| Yule Financial Services Ltd | Financial services | 2019 |
| Yuliya Forrest Interior Design Limited | Professional & scientific | 2024 |
| YUM YUM Kebab Aberdeen Ltd | Hospitality | 2021 |
| Yummy House 489 Ltd | Hospitality | 2025 |
| YWS Holding Ltd | Hospitality | 2022 |
| YZ Ventures Ltd | Wholesale & retail | 2024 |
| Z&Z Dundee Ltd | Real estate | 2024 |
| Z11 Property Limited | Real estate | 2021 |
| Zabka Ltd | Wholesale & retail | 2025 |
| Zabka Market Limited | Wholesale & retail | 2026 |
| ZAC Innovations Ltd | Administrative & support | 2024 |
| Zafa Limited | Real estate | 2022 |
| ZAG Electrical Solutions Ltd | Construction | 2017 |
| Zagrosproperties Ltd | Households | 2023 |
| Zagroz Aberdeen Ltd | Other services | 2025 |
| Zainco (UK) Limited | Health & social care | 2012 |
| ZAK Plasterer Painter & Decorator Ltd | Construction | 2023 |
| Zapco Services Ltd | Construction | 2026 |
| Zaran Kaya Ltd | Real estate | 2021 |
| Zaraya Limited | Transport & logistics | 2022 |
| Zari & Co. Limited | Wholesale & retail | 2025 |
| ZAY Consulting Limited | Financial services | 2016 |
| Zayaan Catering Ltd | Hospitality | 2023 |
| Zayaan Foods Ltd | Hospitality | 2026 |
| ZB Emea 1 LP | | 2019 |
| ZC Electrical Ltd | Mining & quarrying | 2020 |
| Zdybel Consulting Ltd | Financial services | 2026 |
| Zebra Deals Ltd | Wholesale & retail | 2025 |
| Zebra Stripes Networks Limited | Extraterritorial | 2023 |
| Zecca SKI Coaching Limited | Education | 2025 |
| ZEN Spa (Aberdeen) Ltd | Other services | 2011 |
| Zenika Services Ltd | Professional & scientific | 2024 |
| Zenith Energy Group Ltd | Mining & quarrying | 2024 |
| Zenith Energy Limited | Professional & scientific | 2012 |
| Zenith Oilfield Technology Ltd | Mining & quarrying | 2003 |
| Zenith Well Engineering Limited | Administrative & support | 2017 |
| Zenny Beauty Ltd | Other services | 2025 |
| Zeno & Co Limited | Information & communication | 2015 |
| Zenocean Limited | Mining & quarrying | 2007 |
| Zenok Services (UK) Limited | Administrative & support | 2023 |
| Zenvora Mart Limited | Wholesale & retail | 2026 |
| Zephyrus Aerolabs Ltd | Professional & scientific | 2021 |
| Zepscan Survey Ltd | Professional & scientific | 2018 |
| Zern Limited | Professional & scientific | 2018 |
| Zerobotics Ltd | Professional & scientific | 2023 |
| Zeta Technologies (UK) Ltd | Professional & scientific | 2009 |
| Zetetech Limited | Other services | 2009 |
| Zetland Energy Limited | Extraterritorial | 2018 |
| Zetland Property Limited | Real estate | 2019 |
| Zeum Limited | Real estate | 2025 |