| Boakes 1952 Limited | Woolacombe | 2015 |
| Boanerges Limited | Altrincham | 1999 |
| Board Depot Limited | 3 Dorset Rise | 2013 |
| Board Envelopes Ltd | Newark | 2012 |
| Board of Angels Ltd | Cleckheaton | 2016 |
| Board of Directors Limited | Hunton Bridge, | 1987 |
| Boardcable Limited | Surrey | 2004 |
| Boardman Property Investments Limited | Stetchworth Newmarket | 1996 |
| Boardroom Leadership Laboratory Ltd | Haslemere | 2024 |
| Boardwise (Glasgow) Limited | Tranent | 1992 |
| Boardwise (London) Limited | Tranent | 1996 |
| Boarleigh Investment Co. Limited | Plymouth | 1975 |
| Boat (London) Limited | Hartley Wintney | 2017 |
| Boat Safety Stickers Limited | Lymington | 2014 |
| Boat Showrooms Limited | London | 2013 |
| Boat WAX Limited | London | 2021 |
| BOAT2BOAT Ltd | Littlehampton | 2024 |
| Boatbreakers Ltd | Portsmouth | 2012 |
| Boatcoat Limited | Plymouth | 2006 |
| Boathive Ltd | Gloucester | 2012 |
| Boatox Ltd | London | 2016 |
| Boats for Cash Limited | Milton Keynes | 2006 |
| Boatsuk Limited | Rochford | 2014 |
| BOB a Carter Limited | Swindon | 2019 |
| Bob's Properties Limited | Reading | 2004 |
| Boba and YU Ltd | Ashford | 2023 |
| Bobbers Industries Ltd | Barry | 2021 |
| Bobbins Way Management Limited | Norwich | 2013 |
| Bobbo Bygg & Mark Limited | London | 2024 |
| Bobby Maier Trading Company Ltd | Manchester | 2016 |
| Bobby X Limited | Liverpool | 2004 |
| Boben Construction Limited | Rugby | 2022 |
| Bobert Bruce Ltd | Bexhill On Sea | 2024 |
| Bobfans Limited | London | 2025 |
| Bobs Cars Dorchester Limited | Yeovil | 2018 |
| Bobs Taxis Limited | Barnsley | 2012 |
| Bobsy Gaia Limited | Ashtead | 2023 |
| BOC Distribution Services Limited | Woking | 1966 |
| BOC Nominees Limited | Woking | 1964 |
| Bochasanwasi Shri Akshar Purushottam Swaminarayan Sanstha | Neasden | 2010 |
| Bock 1 Ltd | St. Neots | 2023 |
| Bockridge Limited | London | 2010 |
| Bocm Silcock (N.I.) Limited | | 1957 |
| Boco Interiors Ltd | Barnsley | 2021 |
| Bococo Ltd | London | 2020 |
| Boconnoc Estate Holidays Limited | Exeter | 2002 |
| Boczek Ltd | London | 2017 |
| BOD of a GOD Ltd | Mold | 2023 |
| Boda Futures Limited | Nottingham | 2024 |
| Bode Engineering Limited | Preston | 1991 |
| Bode Limited | London | 2014 |
| Bode Masats (UK) Limited | Wolverhampton | 2003 |
| Bodex Limited | Liss | 1972 |
| Bodfari (Quarries) Limited | Birmingham | 1986 |
| Bodhyfryd Road 1967 Limited | Llandudno | 2014 |
| Bodibuddi Ltd | Chessington | 2022 |
| Bodigian & Company Limited | Orpington | 1947 |
| Bodista Limited | London | 2021 |
| Bodlon@Whitchurch Road Limited | Carmarthen | 2017 |
| Bodo Production Ltd | York | 2022 |
| Bodoni GR Limited | London | 2016 |
| Bodrum Beta Marine Ltd | Longfield | 2023 |
| Bodrum Property Direct Limited | Cookstown | 2006 |
| Body Align Clinic Limited | London | 2019 |
| Body and Mind Reboot Limited | Bedford | 2017 |
| Body ARK Personal Trainer Ltd | Colchester | 2024 |
| Body CRE8 Ltd | Lincoln | 2021 |
| Body Development Education Limited | Bristol | 2009 |
| Body Focus Physio Ltd | Gateshead | 2023 |
| Body Fresh Fitness Gym Ltd | Old Harlow | 2019 |
| Body Friendly Limited | Hockliffe, Leighton Buzzard | 2015 |
| Body Mind & Soul Limited | Liverpool | 1997 |
| Body of Fruit Ltd | Broadstairs | 2024 |
| Body Plus Dynamics Limited | Polegate | 1999 |
| Body Rocker Music Ltd | Kington | 2021 |
| Body Rocker Records Ltd | Kington | 2019 |
| Body Upgrade Ltd | Hebburn | 2023 |
| Body Wellness Pilates Limited | Tonbridge | 2019 |
| Bodybuilder Limited | Manchester | 2011 |
| Bodycare (Health & Beauty) Limited | Leyland | 1990 |
| Bodycheck Limited | Kent | 2000 |
| Bodyco Limited | Sale | 2016 |
| Bodyfokus Ltd | Wakefield | 2016 |
| Bodykneads Ltd | London | 2021 |
| Bodymaster Method Limited | Chichester | 2013 |
| Bodyshop Group Holdings (UK) Limited | Birmingham | 2009 |
| BOE Smart Technology Limited | West Midlands, England | 2025 |
| Boeay Holding Group Co., Ltd. | London | 2008 |
| Boering International Group Co., Ltd | London | 2016 |
| Bofo Labs Ltd | London | 2026 |
| Bogblaster Limited | Cheltenham | 2020 |
| Bogdan Technical Solution Ltd | Godalming | 2017 |
| Bogdanel Interiors Limited | Northampton | 2023 |
| Bogist Technology Ltd | Luton | 2021 |
| Bogle and Timms Limited | Wigston | 1940 |
| Bogna Karolak Limited | Glasgow | 2025 |
| Bogna Malinowska Limited | Glasgow | 2024 |
| Bohai Machinery Equipment Ltd. | Beckenham | 2019 |
| Bohai Valve Group Co., Ltd | Stafford | 2019 |
| Bohe Ltd | Worcester | 2003 |