| Bluwolf Ltd | Information & communication | 2012 |
| BLY & SON Classic Cars Ltd | Wholesale & retail | 2016 |
| BLY Design Ltd | Professional & scientific | 2024 |
| BM Building Contractors Limited | Construction | 2000 |
| BM Diesel Engine Works Ltd | Wholesale & retail | 2024 |
| BM Eventing Ltd | Hospitality | 2025 |
| BM Hire Ltd | Transport & logistics | 2026 |
| BM Infosec Ltd | Information & communication | 2017 |
| BM International Limited | Other services | 2023 |
| BM LRE Ltd | Real estate | 2019 |
| BM Media Ltd | Information & communication | 2022 |
| BM Recruit Limited | Administrative & support | 2018 |
| BM UK Holdings Ltd | Real estate | 2024 |
| BMA Property Investment Ltd | Real estate | 2017 |
| Bmaw Ltd | Manufacturing | 2023 |
| BMB Builders Limited | Construction | 2003 |
| BMB Global Recruitment Services UK Ltd | Administrative & support | 2020 |
| BMC Car Sales Limited | Wholesale & retail | 2005 |
| BMC Specialist Services Limited | Construction | 2015 |
| BMC Wholesale Ltd | Wholesale & retail | 2018 |
| BMD Plant and Transport Limited | Transport & logistics | 1991 |
| Bmgstays Ltd | Real estate | 2022 |
| BMH Ltd | Health & social care | 2024 |
| BMI Consultancy Ltd | Health & social care | 2014 |
| Bmmg Holdings Limited | Professional & scientific | 2016 |
| BMP Medical Ltd | Health & social care | 2015 |
| BMP Medical Services Ltd | Health & social care | 2022 |
| BMS Moody Limited | Real estate | 1997 |
| BMS Nottingham Limited | Professional & scientific | 2013 |
| BMS Technical Limited | Construction | 2007 |
| Bmtick Uk/Eu/Usa Ltd | Wholesale & retail | 2017 |
| BN Distribution Ltd | Wholesale & retail | 2013 |
| BN Quick Mart Ltd | Wholesale & retail | 2025 |
| Bncm Limited | Professional & scientific | 2010 |
| BND Services Ltd | Transport & logistics | 2021 |
| BNG Property Ltd | Real estate | 2017 |
| BNJ Services Limited | Wholesale & retail | 2016 |
| BNK Cars Ltd | Wholesale & retail | 2025 |
| BNM Developments Ltd | Professional & scientific | 2023 |
| BNM Finley House Limited | Real estate | 2022 |
| BNS Co. Limited | Hospitality | 2019 |
| BNY Consulting (Nottm) Ltd | Professional & scientific | 2012 |
| BO Vanhegan Ltd | Information & communication | 2019 |
| BOA Properties Limited | Real estate | 1997 |
| Boale Consultancy Ltd | Information & communication | 2015 |
| Boam Electrical Limited | Construction | 2022 |
| Boam Holdings Limited | Real estate | 2022 |
| Boam Joinery Limited | Manufacturing | 2010 |
| Board of Skills Qualifications and Awards Ltd | Education | 2014 |
| Boardie Limited | Information & communication | 2014 |
| Boardman Engineering and Management Services Ltd | Professional & scientific | 2013 |
| Boardman Sports Media & Analysis Ltd | Information & communication | 2025 |
| Boardroom Exchange Ltd | Professional & scientific | 2025 |
| Boasyevent Ltd | Hospitality | 2023 |
| Boatyard Boulders CIC | Arts & recreation | 2024 |
| Boazjachin Ltd | Health & social care | 2025 |
| BOB Stevens Management Limited | Professional & scientific | 2005 |
| Bob's Your Uncle PR Ltd | Professional & scientific | 2024 |
| Boba Notts Limited | Hospitality | 2024 |
| Bobber Mill Devco 2 Limited | Real estate | 2021 |
| Bobbers Mill Devco Limited | Real estate | 2021 |
| Bobbiemons Ltd | Wholesale & retail | 2025 |
| Bobby P'S Ltd | Wholesale & retail | 2023 |
| Bobby&Lyly Ltd | Transport & logistics | 2025 |
| Boblex Ltd | Transport & logistics | 2020 |
| Bobo Oriental 9688 Limited | Hospitality | 2025 |
| Bobsa Ltd | Information & communication | 2025 |
| Bocks Ltd | Information & communication | 2013 |
| Boclo Holdings Limited | Real estate | 2022 |
| BOD88 Ltd | Real estate | 2019 |
| Boda Futures Limited | Extraterritorial | 2024 |
| Boda Group Limited | Financial services | 2018 |
| Boden Associates Limited | Professional & scientific | 2003 |
| Boden Rail Engineering Ltd | Professional & scientific | 2009 |
| Boden Rail Heritage Supplies Limited | Financial services | 2023 |
| Bodhitree Group Ltd | Wholesale & retail | 2018 |
| Bodill & Sons Limited | Construction | 2023 |
| Bodimatics Physiotherapy Ltd | Health & social care | 2025 |
| Boditrax Technologies Ltd | Information & communication | 2011 |
| Bodrum Barbers LE Ltd | Other services | 2025 |
| Body Aspect Ltd | Information & communication | 2003 |
| Body Physical Fitness Club CIC | Health & social care | 2021 |
| Body Sculpt UK Limited | Other services | 2001 |
| Body Wizard Limited | Real estate | 2004 |
| Bodymind Psychology Ltd | Health & social care | 2025 |
| Bodyrok Limited | Arts & recreation | 2025 |
| Bodywork Derby Limited | Wholesale & retail | 2020 |
| BOE Data Services Ltd | Information & communication | 2023 |
| Boecker UK Limited | Wholesale & retail | 2017 |
| Bogdan Building Services Ltd | Construction | 2019 |
| Bogdan Filip Limited | Wholesale & retail | 2025 |
| Boggy Brand Marketing Ltd | Professional & scientific | 2016 |
| Bognar Concepts Ltd | Information & communication | 2025 |
| Bohawk Limited | Professional & scientific | 2023 |
| Bohns & Sapori Ltd | Hospitality | 2018 |
| Bohns Limited | Manufacturing | 2018 |
| Boho Sahara Ltd | Wholesale & retail | 2020 |
| Boiler X Ltd | Construction | 2025 |
| Boilers + Renewables Ltd | Construction | 2019 |
| Boinov Limited | Transport & logistics | 2015 |