| Big Poppa Exports Ltd | Wholesale & retail | 2019 |
| Biggar Electrical Services Ltd | Administrative & support | 2011 |
| Biohima Ltd | Wholesale & retail | 2025 |
| Birbeck PUB Company Limited | Hospitality | 2002 |
| Biscone Bakery Ltd | Manufacturing | 2026 |
| BJD Brickwork Limited | Construction | 2019 |
| Black Rose Barbers & Tattoo Studio Ltd | Other services | 2024 |
| Blackett Properties Limited | Real estate | 2025 |
| Blink Buy Ltd | Wholesale & retail | 2025 |
| Bliss Pedi Spa Limited | Other services | 2022 |
| Blush&Co Limited | Other services | 2020 |
| Bmcwilliams Limited | Administrative & support | 2017 |
| Bmcwind Ltd | Energy | 2025 |
| Boatswain's Food Ltd | Wholesale & retail | 2023 |
| Boom Dang Limited | Arts & recreation | 2007 |
| Boonify Marketplace and Consulting Ltd | Wholesale & retail | 2025 |
| Boss Hair Studio (Barrow) Limited | Other services | 2019 |
| Boundlss Apparel Ltd | Wholesale & retail | 2026 |
| Bowes & Hauxley Limited | Professional & scientific | 2018 |
| Bozzz Takeaway Ltd | Hospitality | 2026 |
| BP Management and Consultancy Services Limited | Professional & scientific | 2014 |
| BPC Services Ltd | Hospitality | 2024 |
| Bradley Pipe Systems Ltd | Construction | 2025 |
| Brathay Entertainment Ltd | Hospitality | 2021 |
| Brennan Investments Limited | Professional & scientific | 2016 |
| Brew at Industry Ltd | Hospitality | 2022 |
| Brian Clarke Limited | Hospitality | 2013 |
| Brian Mawson & SON Ltd | Manufacturing | 2015 |
| Brian Pears Limited | Financial services | 2015 |
| Bride to BE Studio Ltd | Wholesale & retail | 2020 |
| Brightwork OPS Limited | Information & communication | 2017 |
| Brittons Meadery Ltd | Manufacturing | 2022 |
| Bromley Catering Ltd | Hospitality | 2013 |
| Brookfield Store Ltd | Wholesale & retail | 2019 |
| Brown and Murray Legal Services Limited | Professional & scientific | 2005 |
| Brown Barron Solicitors LLP | | 2023 |
| Brows and Lashes by JEN Ltd | Other services | 2017 |
| Brunch. Barrow Limited | Hospitality | 2023 |
| BTS Foods Ltd | Wholesale & retail | 2018 |
| Buaban Limited | Hospitality | 2025 |
| Buchan Technical Services Limited | Wholesale & retail | 2008 |
| Build a Bathroom Ltd | Construction | 2023 |
| Bujupi Investment Properties Limited | Real estate | 2025 |
| Bullseyeclub Ltd | Wholesale & retail | 2025 |
| Bumblebee at the Hive Limited | Hospitality | 2022 |
| Bumbleberry Papercrafts Ltd | Wholesale & retail | 2020 |
| Burnt Toast Solutions Ltd | Wholesale & retail | 2018 |
| Bursa Kebab Limited | Hospitality | 2026 |
| Business Analysis London Ltd | Professional & scientific | 2015 |
| Buxton House Apartments Ltd | Real estate | 2024 |
| BW Lettings (NW) Limited | Real estate | 2020 |
| C & B Joinery Limited | Construction | 2023 |
| C J Shepherd Limited | Construction | 2019 |
| C L Decorating Ltd | Construction | 2021 |
| C&M West Properties Ltd | Real estate | 2024 |
| C&T Welding Ltd | Manufacturing | 2025 |
| Caine Performance Ltd | Professional & scientific | 2020 |
| Campion Lewis Limited | Professional & scientific | 2015 |
| Canderson Ltd | Other services | 2003 |
| Canon Medical Ltd | Wholesale & retail | 2026 |
| Caravan Storage Cumbria Ltd | Administrative & support | 2013 |
| Carbon Car Competitions Ltd | Arts & recreation | 2025 |
| Carefree Travel Limited | Transport & logistics | 2007 |
| Carlton Property Lettings Ltd | Real estate | 2022 |
| Carotino (EU) Limited | Hospitality | 1997 |
| Carriola Deli Limited | Hospitality | 2025 |
| Cartwheeled Ltd | Other services | 2020 |
| Casc (Barrow) Limited | Administrative & support | 2011 |
| Castle Eden Limited | Administrative & support | 2002 |
| Cattedown Wharves Limited | Transport & logistics | 1920 |
| Cavendish Court Management Company (Barrow in Furness) Limited | Households | 2008 |
| CB Properties Barrow Limited | Real estate | 2022 |
| CCS Cumbria Car Sales Ltd | Wholesale & retail | 2024 |
| Centre for Leadership Insight Limited | Information & communication | 2024 |
| Century Housing Group Ltd | Real estate | 2022 |
| CFS Roofing & Plastering Ltd | Administrative & support | 2019 |
| CH15 Limited | Hospitality | 2018 |
| Chabri Bala Limited | Wholesale & retail | 2018 |
| Chap's Emporium Limited | Wholesale & retail | 2020 |
| Chatsworth Media Group Ltd | Manufacturing | 2024 |
| Chatsworth Signs Ltd | Professional & scientific | 2011 |
| Chatterjee Properties Limited | Real estate | 2017 |
| Chicago Chicken Ltd | Hospitality | 2019 |
| Chikaly Ltd | Wholesale & retail | 2022 |
| Chris Ritchie Garage Services Limited | Wholesale & retail | 2013 |
| Chris Wilson Diving Ltd | Professional & scientific | 2012 |
| CHRONOBAND104 Ltd | Other services | 2018 |
| Citi Motors Ltd | Wholesale & retail | 2017 |
| City Design Limited | Information & communication | 2022 |
| Cjtr Wind Limited | Professional & scientific | 2025 |
| CKD Offshore Ltd | Construction | 2012 |
| Clarke Jefferies Limited | Professional & scientific | 2011 |
| Clear Pathways Project C.I.C. | Education | 2025 |
| CLIMB3R Ltd | Other services | 2023 |
| Clomaná Beauty Limited | Wholesale & retail | 2021 |
| CM Houghton Engineering Limited | Professional & scientific | 2023 |
| CMB Wind Ltd | Construction | 2017 |
| Coaching by AC Ltd | Education | 2024 |
| Coast Fitness South Lakes Ltd | Arts & recreation | 2026 |
| Coast Roads Music & Arts Festival Ltd | Arts & recreation | 2022 |