| Autolux Supplies Ltd | Extraterritorial | 2023 |
| Automated Technology Solutions Ltd | Professional & scientific | 2025 |
| Avanti Medcare Ltd | Health & social care | 2022 |
| Avanti Pizza Ltd | Hospitality | 2024 |
| Avelor Enterprise Ltd | Wholesale & retail | 2026 |
| Avenue Data Consulting Ltd | Information & communication | 2024 |
| Avimis Group Ltd | Information & communication | 2026 |
| Awaken Security and Consultancy Ltd | Administrative & support | 2025 |
| AX Mobile & Vapes Ltd | Other services | 2024 |
| Axis Care Group Ltd | Health & social care | 2021 |
| Axis Health Ltd | Health & social care | 2021 |
| Axis Health Solutions Ltd | Health & social care | 2020 |
| Axis Housing Ltd | Households | 2025 |
| Ayyan Mobiles Ltd | Wholesale & retail | 2023 |
| Ayzal Foods Limited | Wholesale & retail | 2026 |
| AZ Engineering Consultancy Ltd | Professional & scientific | 2025 |
| B & B Holdings Limited | Professional & scientific | 2006 |
| B M Home Properties Ltd | Real estate | 2025 |
| B Plumb Ltd | Construction | 2022 |
| B Stobie Interiors Ltd | Construction | 2022 |
| B.N.S. Transport Ltd | Transport & logistics | 2025 |
| Babydolls by Vicky Limited | Wholesale & retail | 2021 |
| Backyard Productions Limited | Information & communication | 2022 |
| Bags HQ Limited | Professional & scientific | 2016 |
| Bamboo Learning Ltd | Education | 2018 |
| Bambood A1 Ltd | Hospitality | 2019 |
| Banginbutties Limited | Hospitality | 2025 |
| Bankey Health Limited | Health & social care | 2019 |
| Bare Builds Ltd | Construction | 2022 |
| Bargains by Bayliss Limited | Wholesale & retail | 2024 |
| Barking Barn Dog Grooming Limited | Other services | 2022 |
| Base Recovery and Service Limited | Wholesale & retail | 2011 |
| Basestar Limited | Administrative & support | 2020 |
| Bask Properties Ltd | Real estate | 2017 |
| BB Accounts and Tech Limited | Professional & scientific | 2022 |
| BD & P Solutions N/W Ltd | Construction | 2022 |
| Bear Creativity Limited | Information & communication | 2020 |
| Beauty Hub Property Management Ltd | Real estate | 2026 |
| Beckley Landlord Services Ltd | Administrative & support | 2024 |
| Beckley Property Services Ltd | Administrative & support | 2024 |
| BEE Crest Estates Ltd | Construction | 2026 |
| BEE Happy Art Ltd | Arts & recreation | 2013 |
| Beech Hill Motor Company Limited | Transport & logistics | 1986 |
| Beekayshoray Ltd | Administrative & support | 2024 |
| Benant Developments Ltd | Real estate | 2009 |
| Bengal Street Bedding Centre Limited | Wholesale & retail | 2014 |
| Bennett Hill Letting Ltd | Real estate | 2024 |
| Berrido Mortgage Services Ltd | Financial services | 2006 |
| Bertina Ltd | Information & communication | 2020 |
| Best Bookkeeping and Admin Services Ltd | Professional & scientific | 2018 |
| Betiti Ltd | Transport & logistics | 2025 |
| Better Together Childcare Ltd | Health & social care | 2024 |
| Beytoushi Market Ltd | Wholesale & retail | 2023 |
| BFD Services Ltd | Information & communication | 2025 |
| Bfsquared Ltd | Professional & scientific | 2023 |
| BH Sourcing Ltd | Real estate | 2022 |
| BHC Developments Limited | Construction | 2014 |
| Big Bang Builders Ltd | Manufacturing | 2023 |
| Big Grillz Ltd | Hospitality | 2019 |
| Big Noise Films Limited | Other services | 2012 |
| Bike Volt Ltd | Manufacturing | 2025 |
| Billion Star Limited | Wholesale & retail | 2025 |
| Billyboykebabs Ltd | Hospitality | 2025 |
| Biplio Solutions Ltd | Information & communication | 2023 |
| Birch Garden Centre (Leigh) Limited | Administrative & support | 2024 |
| Birchall and Co Limited | Professional & scientific | 2013 |
| Bisgedi Enterprises Limited | Manufacturing | 2024 |
| Bitofdinner Limited | Hospitality | 2022 |
| BJ Mini Market Ltd | Wholesale & retail | 2025 |
| Black Shakira Limited | Health & social care | 2023 |
| Blackdrop Cosmetics Ltd | Manufacturing | 2025 |
| Blackpaw Films Ltd | Information & communication | 2021 |
| Blaze Wear Group Ltd | Wholesale & retail | 2017 |
| Blend Hair Manchester Limited | Other services | 2025 |
| Blessing in Disguise | Other services | 2013 |
| Blessings in Disguise Limited | Extraterritorial | 2013 |
| Blitz IT Car Wash Leigh Ltd | Administrative & support | 2025 |
| Bloomirage Ltd | Wholesale & retail | 2025 |
| Blue Dawn Publications Limited | Extraterritorial | 2021 |
| Blue Peacock Services Ltd | Education | 2025 |
| Blue Poppy Limited | Construction | 2026 |
| Bluestep Consulting Ltd | Professional & scientific | 2020 |
| Bluewater Accountancy Limited | Professional & scientific | 2022 |
| Bluwater Compliance Limited | Water & waste | 2018 |
| BMH Training Limited | Education | 2018 |
| Bobs Chicken & Shakes Ltd | Hospitality | 2019 |
| Bocata UK Ltd | Hospitality | 2025 |
| Bocoffeeco Ltd | Wholesale & retail | 2026 |
| Bodyfit Academy Ltd | Arts & recreation | 2012 |
| Bolton Denture Centre Limited | Professional & scientific | 2012 |
| Bolton K9 Shop Limited | Agriculture & fishing | 2021 |
| Bolton Trading Ltd | Real estate | 2020 |
| BOM TA BOM Ltd | Arts & recreation | 2019 |
| Bond Street Brewing Company Ltd | Hospitality | 2019 |
| Boost Property Support Services Ltd | Administrative & support | 2017 |
| Boss Auto Works Ltd | Wholesale & retail | 2026 |
| Boss Building & Joinery Ltd | Construction | 2026 |
| Boss Performance Remaps Ltd | Wholesale & retail | 2025 |
| Bottle Bay Ltd | Wholesale & retail | 2024 |
| Boultons Financial Services Ltd | Financial services | 2008 |