| YF Fabric Limited | Wholesale & retail | 2026 |
| Yffn Investments Limited | Real estate | 2025 |
| YG Recruitment Services Ltd | Administrative & support | 2025 |
| YH Developments Limited | Other services | 2023 |
| YH Wholesale Limited | Wholesale & retail | 2024 |
| YHA Deals Ltd | Wholesale & retail | 2026 |
| Yhdd Properties Ltd | Real estate | 2020 |
| Yhdessa Limited | Administrative & support | 2019 |
| YHM Quality Foods Limited | Transport & logistics | 2007 |
| Yiayia's Bakes Limited | Wholesale & retail | 2026 |
| Yibfleet Value Ltd | Transport & logistics | 2015 |
| Yield Enterprise Solutions Consultancy Ltd | Administrative & support | 2013 |
| Yildiz Industrial Ltd | Manufacturing | 2024 |
| Yildiz Leicester Limited | Hospitality | 2025 |
| YIM Ltd | Wholesale & retail | 2025 |
| Ying FU Ltd | Hospitality | 2018 |
| Yisa Ltd | Health & social care | 2022 |
| Yitch Ltd | Professional & scientific | 2012 |
| Yiven Support Services Ltd | Health & social care | 2025 |
| YJ Threads Ltd | Manufacturing | 2024 |
| Yjsr Ltd | Information & communication | 2025 |
| YK Group Ltd | Hospitality | 2026 |
| Yk.Aznstr Ltd | Wholesale & retail | 2025 |
| YL Engineering Consultancy Limited | Professional & scientific | 2017 |
| YLM Motor Works Ltd | Wholesale & retail | 2025 |
| YM Driving Academy Ltd | Education | 2021 |
| YM Global Logistics Ltd | Transport & logistics | 2023 |
| YM Pharma Group Ltd | Wholesale & retail | 2023 |
| YM Wholesale Ltd | Wholesale & retail | 2025 |
| YMI Investments Ltd | Financial services | 2026 |
| YMS Leicester Limited | Construction | 2019 |
| Ymthreads Limited | Wholesale & retail | 2026 |
| YNA Nechifor's Ltd | Transport & logistics | 2019 |
| YNC Group Limited | Professional & scientific | 2022 |
| YNE Solutions Limited | Information & communication | 2005 |
| YNV Group Limited | Wholesale & retail | 2026 |
| YNV Limited | Transport & logistics | 2026 |
| YO Scenario Ltd | Information & communication | 2023 |
| Yocalm Ltd | Information & communication | 2024 |
| Yocalm Media Limited | Information & communication | 2012 |
| Yogi Trade Limited | Wholesale & retail | 2022 |
| Yoho Land & Property Ltd | Real estate | 2023 |
| Yonah Housing Ltd | Real estate | 2026 |
| Yonah Property Group Ltd | Construction | 2023 |
| Yonnel Care Services Ltd | Health & social care | 2023 |
| Yonnel Fashion UK | Other services | 2019 |
| Yoon Associates Limited | Health & social care | 2012 |
| York Assemblies Limited | Manufacturing | 1985 |
| York House Management Company (Ashby) Limited | Real estate | 2022 |
| York Street (Leicester) Ltd | Other services | 2017 |
| Yorkies Venues Ltd | Hospitality | 2025 |
| Yorkshire Knot Ltd | Manufacturing | 2026 |
| Yorkshire Shoulder Works Ltd | Health & social care | 2015 |
| Yoruba Land Ltd | Professional & scientific | 2023 |
| YOU and ME Fashions Limited | Manufacturing | 2018 |
| YOU Group Limited | Information & communication | 1999 |
| Youcallwecome Limited | Wholesale & retail | 2025 |
| Youfone Ltd | Wholesale & retail | 2018 |
| Yougo Care Services Limited | Health & social care | 2022 |
| Youguide Ltd | Information & communication | 2021 |
| Youhome Limited | Real estate | 2004 |
| Young Adventures CIC | Education | 2025 |
| Young Engineers Loughborough Ltd | Education | 2026 |
| Young Hearts Care Service Limited | Health & social care | 2023 |
| Young House Estates Management Ltd | Households | 2026 |
| Young Ideas (International) Ltd | Wholesale & retail | 2016 |
| Young Leicestershire Ltd | Other services | 2013 |
| Young Ones Nursery School Limited | Education | 2013 |
| Young Production Co Ltd | Information & communication | 2019 |
| Young Rail Professionals Limited | Other services | 2014 |
| Youngbrit Ltd | Wholesale & retail | 2021 |
| Younger U Aesthetics Limited | Health & social care | 2015 |
| Younglands Court Flats Management Limited | Real estate | 1977 |
| Your Blinds Direct Ltd | Extraterritorial | 2010 |
| Your Blinds Ltd | Wholesale & retail | 2010 |
| Your Builders (Leicester) Limited | Construction | 2018 |
| Your Car GUY Ltd | Wholesale & retail | 2022 |
| Your Choice Care (Leicester) Limited | Health & social care | 2022 |
| Your Choice Care Ltd | Health & social care | 2018 |
| Your Cleaning Team (YCT) UK Limited | Administrative & support | 2021 |
| Your Company Here Limited | Administrative & support | 2024 |
| Your Construction Managed (YCM) Ltd | Construction | 2020 |
| Your Doctor Limited | Health & social care | 2025 |
| Your Doctor Services Ltd | Health & social care | 2022 |
| Your Dream Constructions Limited | Construction | 2011 |
| Your Driving Academy Limited | Education | 2009 |
| Your Easy Deals Ltd | Wholesale & retail | 2021 |
| Your Equip Ltd | Administrative & support | 2015 |
| Your Flexible Care Ltd | Health & social care | 2021 |
| Your Home Property Ltd | Real estate | 2012 |
| Your Lettings Agent Ltd | Real estate | 2021 |
| Your Moving Limited | Transport & logistics | 2021 |
| Your Perfect Place Limited | Real estate | 2024 |
| Your Pharmacy (Leicester) Limited | Wholesale & retail | 2009 |
| Your Presence Ltd | Hospitality | 2020 |
| Your Products Branded Ltd | Administrative & support | 2015 |
| Your Shop Leicester Limited | Wholesale & retail | 2017 |
| Your Sight Limited | Health & social care | 2007 |
| Your Signature Chess Company Ltd | Wholesale & retail | 2025 |
| Your Structures Ltd | Professional & scientific | 2019 |