| BGM Properties (Scarborough) Ltd | Financial services | 2024 |
| Bideford Power (UK) Limited | Extraterritorial | 2010 |
| Big Ideas by the Sea CIC | Arts & recreation | 2020 |
| Big Maya's Jerk Ltd | Hospitality | 2023 |
| Big Red Curtain Ltd | Arts & recreation | 2008 |
| Bird Street Enterprises Limited | Financial services | 2016 |
| Birding the Islands Ltd | Administrative & support | 2017 |
| Bisoustudio Limited | Wholesale & retail | 2025 |
| BITS4LANDYS Ltd | Manufacturing | 2015 |
| BJH Electrical Ltd | Construction | 2022 |
| BL Accountancy Ltd | Professional & scientific | 2024 |
| Black Cannon Holdings Ltd | Professional & scientific | 2026 |
| Black Cannon Publishing Ltd | Information & communication | 2007 |
| Black Cannon Studios Ltd | Information & communication | 2026 |
| Black Swan Shoppe Ltd | Wholesale & retail | 2012 |
| Black TIE Travel Limited | Hospitality | 2019 |
| Blakeston Plumbing & Heating Limited | Construction | 2018 |
| Blenheim Court Management Company (Scarborough) Limited | Households | 2005 |
| Bleu Capital Limited | Financial services | 2024 |
| Bling Your Bark Limited | Manufacturing | 2025 |
| BLM Plumbing and Heating Limited | Construction | 2021 |
| Bloom Coffee & Bakery Ltd | Wholesale & retail | 2019 |
| Blooms Construction Limited | Construction | 2024 |
| Blproducts Ltd | Professional & scientific | 2022 |
| Blue Side UP Consulting Ltd | Information & communication | 2021 |
| Blue Sky MD Ltd | Real estate | 2016 |
| Bluebell Shoes Limited | Wholesale & retail | 2011 |
| BNH Safety & Compliance Ltd | Professional & scientific | 2026 |
| BNL Rental Ltd | Real estate | 2025 |
| Boatman's Tavern Limited | Hospitality | 2011 |
| Bodycomplete Limited | Arts & recreation | 2013 |
| Boiler Doctor Scarborough Ltd | Construction | 2021 |
| Bold Brew Coffee Limited | Manufacturing | 2025 |
| Bomba Klima Ltd | Administrative & support | 2020 |
| Bond Machinery UK Ltd | Wholesale & retail | 2024 |
| Bondstars LLP | | 2010 |
| Bonhomme Homes Limited | Real estate | 2025 |
| Bonnet's Chocolates Ltd | Manufacturing | 2009 |
| Bonzo Sailor Limited | Construction | 2021 |
| Booka Bay Limited | Other services | 2022 |
| Bookaclass Ltd | Wholesale & retail | 2023 |
| Books by the Beach Limited | Arts & recreation | 2016 |
| Boro Cars Limited | Transport & logistics | 2019 |
| Boro Motors Ltd | Wholesale & retail | 2025 |
| Boro Storage Ltd | Transport & logistics | 2024 |
| Bouncing MAD Ltd | Arts & recreation | 2024 |
| Bowishott Estates Limited | Real estate | 1956 |
| Box Artist Management Limited | Arts & recreation | 2012 |
| Box Leather Ltd | Wholesale & retail | 2023 |
| Boyes Holdings (Scarborough) Limited | Professional & scientific | 1954 |
| BP Pipework Limited | Construction | 2017 |
| BPS Contractors Ltd | Construction | 2025 |
| BPS Lettings Ltd | Real estate | 2022 |
| Brackencliffe (Scarborough) Limited | Households | 1991 |
| Bramcote Athletic Ltd | Arts & recreation | 2022 |
| Bransdale UK Limited | Wholesale & retail | 2020 |
| Bravender Court Limited | Households | 2003 |
| Bravender Property Limited | Real estate | 2010 |
| Brazier Consulting (Yorkshire) Ltd | Professional & scientific | 2024 |
| Breckon Developments (NE) Limited | Construction | 2020 |
| Brewed Coffee Shop & Eatery LLP | | 2025 |
| Brewscarborough Ltd | Hospitality | 2025 |
| Brian Anderson and SON Limited | Construction | 2002 |
| Brian Smith & SON Limited | Construction | 2015 |
| Briarcot Holdings Limited | Financial services | 2020 |
| Briardene Limited | Health & social care | 2016 |
| Bridge GAP Healthcare Limited | Health & social care | 2024 |
| Bridge Property Holdings Ltd | Real estate | 2025 |
| Bridlington Bay Shellfish Limited | Wholesale & retail | 2021 |
| Bridlington Driving Range Ltd | Arts & recreation | 2024 |
| Bridlington Gold Limited | Information & communication | 2020 |
| Bridlington Home Furnishings Limited | Wholesale & retail | 2021 |
| Brighter Care Projects Limited | Real estate | 2025 |
| Brighthings Limited | Wholesale & retail | 2024 |
| Brightminds Limited | Wholesale & retail | 1998 |
| Brigzofbrigz Ltd | Wholesale & retail | 2025 |
| Brilliant Networks Limited | Professional & scientific | 2014 |
| Brioche DZ Limited | Hospitality | 2026 |
| Brittcorp Drums Ltd | Wholesale & retail | 2025 |
| BRK ENG Holdings Ltd | Financial services | 2025 |
| BRK ENG Ltd | Professional & scientific | 2019 |
| Broad Skies Properties Ltd | Real estate | 2022 |
| Broadfall Limited | Information & communication | 2004 |
| Broadland Energy (Laudale) Limited | Energy | 2013 |
| Broadland Properties Trading Limited | Extraterritorial | 2017 |
| Broadland Renewable Construction Limited | Extraterritorial | 2012 |
| Broadland Renewable Energy Limited | Energy | 2010 |
| Brofit Coaching Ltd | Arts & recreation | 2025 |
| Brompton (Scarborough) Properties Limited | Real estate | 2015 |
| Brompton Holiday Flats Limited | Hospitality | 2017 |
| Bronze Services Europe Ltd | Financial services | 2014 |
| Brooke Care and Support Services Ltd | Health & social care | 2025 |
| Brooke's Catering Limited | Hospitality | 2018 |
| Brooklands Apartments Limited | Households | 2016 |
| Brooksbank Architecture & Design LLP | | 2022 |
| Browcon Homes Limited | Administrative & support | 2007 |
| Brown & Hulme Entertainment Limited | Financial services | 2026 |
| Brown Eggs Limited | Wholesale & retail | 2003 |
| Brown Paints Ltd | Construction | 2022 |
| Browne Property Limited | Real estate | 2025 |