| Bundy R Bear Limited | Other services | 2023 |
| Bungee Leicester Ltd | Arts & recreation | 2024 |
| Bungles Bar Ltd | Hospitality | 2023 |
| Bunraku Tattoo Ltd | Other services | 2018 |
| Bunting Property Ltd | Real estate | 2019 |
| Bunz N Roses Ltd | Hospitality | 2024 |
| Bupe Bwandi Healthcare Ltd | Health & social care | 2021 |
| BUR Investments Ltd | Real estate | 2026 |
| Buraq Runners Ltd | Transport & logistics | 2024 |
| Buraq Tech Ltd | Information & communication | 2026 |
| Buraq Universal Limited | Other services | 2025 |
| Buraq Universal Security Services Limited | Administrative & support | 2025 |
| Burbage Holdings Ltd | Real estate | 2023 |
| Burcea Ltd | Manufacturing | 2023 |
| Burd Skin Care Ltd | Health & social care | 2011 |
| Bureau DE LA Gouvernance Moderne Ltd | Financial services | 2020 |
| Burger Bags Limited | Manufacturing | 2023 |
| Burger Base Ltd | Hospitality | 2017 |
| Burger Land (Leic) Ltd | Hospitality | 2025 |
| Burger TYM Restaurants Ltd | Hospitality | 2020 |
| Burgerpro Solutions Ltd | Agriculture & fishing | 2019 |
| Burgers & Taco Ltd | Hospitality | 2022 |
| Burgess East Ltd | Transport & logistics | 2021 |
| Burgundy Capital UK Limited | Financial services | 2020 |
| Burgundy Property Solutions Ltd | Real estate | 2021 |
| Burhani Advertisting Ltd | Information & communication | 2022 |
| Burhani Mobiles Limited | Wholesale & retail | 2019 |
| Burj AL Tamr Dates Ltd | Wholesale & retail | 2026 |
| Burj Haulage Ltd | Transport & logistics | 2023 |
| Burley Engineering Limited | Manufacturing | 2003 |
| Burleys Leicester Limited | Professional & scientific | 2014 |
| Burleys Properties Ltd | Real estate | 2015 |
| Burlington Gate (Flat 305) Limited | Real estate | 2022 |
| Burndean Leasing Limited | Administrative & support | 1984 |
| Burnham Plaice UK Ltd | Hospitality | 2024 |
| Burnhill Transport Ltd | Transport & logistics | 2014 |
| Burnmoor (Leicester) Limited | Hospitality | 2014 |
| Burp Media Limited | Information & communication | 2006 |
| Burrough Bloodstock Ltd | Agriculture & fishing | 2022 |
| Burrows & Smith Holdings Limited | Manufacturing | 2016 |
| Bursa Evington Ltd | Hospitality | 2025 |
| Bursa Shawarma Limited | Hospitality | 2023 |
| Burton Assets Limited | Real estate | 2018 |
| Burton OP Limited | Wholesale & retail | 2025 |
| Burton Plant Hire & Groundworks Ltd | Administrative & support | 2018 |
| Burton Village Land Limited | Real estate | 1993 |
| Burvaro Ltd | Wholesale & retail | 2020 |
| Bushby Booth Limited | Information & communication | 2020 |
| Bushby Projects Limited | Administrative & support | 2020 |
| Bushra ALI Group Global CIC | Education | 2022 |
| Bushra ALI Solicitors Ltd | Professional & scientific | 2015 |
| Bushra Daycare Ltd | Administrative & support | 2017 |
| Business 2 Business (RSC) Limited | Administrative & support | 2021 |
| Business 2 Business (U.K.) Limited | Administrative & support | 1992 |
| Business Checkmate Ltd | Professional & scientific | 2012 |
| Business Credit Solutions Ltd | Financial services | 1999 |
| Business Ease International Ltd | Information & communication | 2022 |
| Business Growth Alliance Limited | Professional & scientific | 2021 |
| Business Insurance Renewals Consultants Ltd | Financial services | 2020 |
| Business Integrations Limited | Information & communication | 2007 |
| Business Intelligence and Strategy Limited | Information & communication | 2005 |
| Business Link PVT Ltd | Wholesale & retail | 2015 |
| Business Management Limited | Professional & scientific | 1985 |
| Business Profits Ltd | Administrative & support | 2024 |
| Business Rates Solution Ltd | Administrative & support | 2026 |
| Business Savings Guru Limited | Administrative & support | 2024 |
| Business Utility Leads Limited | Professional & scientific | 2024 |
| Business Utility Renewals Ltd | Professional & scientific | 2016 |
| Businet Limited | Real estate | 2015 |
| Busy AS Bees Limited | Agriculture & fishing | 2023 |
| Busy B Boilers Ltd | Construction | 2009 |
| Busy BEE Learning Ltd | Manufacturing | 2022 |
| Busy Bees Repairs Limited | Other services | 2016 |
| Busy Homes Ltd | Real estate | 2026 |
| Butcher's Box Limited | Wholesale & retail | 1994 |
| Butler and Broom Limited | Administrative & support | 2020 |
| Butler's of Leicester Limited | Construction | 2008 |
| Butlin Property Services Ltd | Real estate | 2005 |
| Butterbrûlée Ltd | Manufacturing | 2021 |
| Buttercupbelles Limited | Extraterritorial | 2016 |
| Butterfly Beacons Community Interest Company | Education | 2020 |
| Butterfly Colours Ltd | Manufacturing | 2026 |
| Butterfly Homes Ltd | Real estate | 2022 |
| Butterfly Social Care and Catering/Domestic Services Limited | Health & social care | 2015 |
| Buulo Limited | Transport & logistics | 2015 |
| Buut B Trading Ltd | Wholesale & retail | 2023 |
| BUX Clothing Limited | Manufacturing | 2008 |
| BUX Investments Ltd | Financial services | 2017 |
| Buxton Car Sales Ltd | Wholesale & retail | 2016 |
| Buy 4 Less Traders Limited | Wholesale & retail | 2024 |
| Buy a Hamper Ltd | Wholesale & retail | 2016 |
| Buy Direct (Leicester) Ltd | Wholesale & retail | 2025 |
| Buy Globe Ltd | Wholesale & retail | 2024 |
| Buy Indian Grocery Limited | Wholesale & retail | 2019 |
| Buy Overseas Limited | Real estate | 2014 |
| Buy Tidy Ltd | Administrative & support | 2023 |
| Buyboom Ltd | Wholesale & retail | 2025 |
| Buyers Point Ltd | Wholesale & retail | 2024 |
| Buylance Ltd | Wholesale & retail | 2025 |
| Buzhev Ltd | Transport & logistics | 2021 |