| Blue Salmon Limited | Cardiff | 2019 |
| Blue Salt FA Limited | Woodbridge | 2019 |
| Blue Saphire Ltd | Eastbourne | 2022 |
| Blue SAPHIRE1 Ltd | Eastbourne | 2023 |
| Blue Sapphire Hotel Ltd | Essex | 2021 |
| Blue Sapphire Services Ltd | London | 2025 |
| Blue Sapphire Thai Cuisine Limited | London | 2018 |
| Blue Satin Support Ltd. | Nottingham | 2013 |
| Blue Sea 182 Ltd | Aberdeen | 2026 |
| Blue Sea 767 Limited | Dagenham | 2021 |
| Blue Sea Development Limited | Dagenham | 2011 |
| Blue Sea Fish Bar Limited | Eastbourne | 2025 |
| Blue Sea Fish Ltd | Ipswich | 2025 |
| Blue Sea Takeaway Ltd | Musselburgh | 2023 |
| Blue Sheep Bistro Limited | London | 2025 |
| Blue Shop 101 Ltd | London | 2025 |
| Blue Silver .VIP Hospitality Limited | Macclesfield | 2025 |
| Blue Silver .VIP Limited | Cheadle | 2020 |
| Blue Skies Ahead Community Interest Company | Bangor | 2016 |
| Blue Skies Campsite Limited | Wells-Next-The-Sea | 2016 |
| Blue Skies Limited | Jedburgh | 2008 |
| Blue Sky (Liverpool) Ltd | Widnes | 2025 |
| Blue Sky (NW) Ltd | Liverpool | 2019 |
| Blue Sky (Widnes) Ltd | Liverpool | 2022 |
| Blue Sky 07 Ltd | Pontypridd | 2025 |
| Blue Sky Airdrie Ltd | Airdrie | 2017 |
| Blue Sky Apartments Ltd | Cardiff | 2025 |
| Blue Sky Aviation Catering Ltd | Milton Keynes | 2019 |
| Blue Sky BBQ Shack Ltd | Cowling | 2025 |
| Blue Sky Cafe CYF | Bangor | 2019 |
| Blue Sky Cafe Weymouth Limited | Weymouth | 2025 |
| Blue Sky Caterers Limited | London | 2014 |
| Blue Sky Catering Conference and Events Ltd | Edinburgh | 2024 |
| Blue Sky Catering Services Limited | Brierley Hill | 2018 |
| Blue Sky Cornwall Ltd | London | 2021 |
| Blue Sky Developments (North West) Limited | Blackpool | 2006 |
| Blue Sky Entertainment Ltd | Newcastle Upon Tyne | 2015 |
| Blue Sky Event Management Limited | Falmouth | 2013 |
| Blue Sky Fine Foods Ltd | Milton Keynes | 2020 |
| Blue Sky Foods Ltd | Altrincham | 2018 |
| Blue Sky Glasgow Limited | Glasgow | 2025 |
| Blue Sky Go Wild Limited | Cupar | 2020 |
| Blue Sky Grill Limited | Swansea | 2020 |
| Blue Sky Holidays Lettings Ltd | Sale Moor | 2019 |
| Blue Sky Holidays Ltd | Grays | 2021 |
| Blue Sky Leisure (Leeds) Ltd | Leeds | 2017 |
| Blue Sky Leisure Limited | Norwich | 2024 |
| Blue Sky LOW Fell Ltd | Gateshead | 2021 |
| Blue Sky MCR Ltd | Manchester | 2025 |
| Blue Sky Portsmouth Limited | Southsea | 2023 |
| Blue Sky Properties (Midlands) Limited | Newark | 2023 |
| Blue Sky Resorts Limited | Wakefield | 2004 |
| Blue Sky Serviced Apartments Ltd | Reigate | 2018 |
| Blue Sky Shisha Garden Ltd | Cleethorpes | 2025 |
| Blue Sky Takeaway Ltd | Leeds | 2025 |
| Blue Sky West Ltd | London | 2016 |
| Blue Skye Property Management Limited | Redditch | 2025 |
| Blue Slate Fold (Residents) Limited | Preston | 2008 |
| Blue SMD Limited | Twickenham | 2026 |
| Blue Smoke SOC Ltd | London | 2026 |
| Blue Snail Limited | Lincoln | 2017 |
| Blue Sparrow Cafe Limited | London | 2021 |
| Blue Spice W6 Ltd | London | 2025 |
| Blue Spring Dining Limited | Manchester | 2025 |
| Blue Springs Social Care Ltd | Nuneaton | 2021 |
| Blue Spurs Enterprises Limited | Tonbridge | 2022 |
| Blue Square Restaurants Ltd | Stirling | 2022 |
| Blue Star 2026 Ltd | Liverpool | 2026 |
| Blue Star Company Construction Ltd | Birmingham | 2019 |
| Blue Star Express (Dartford) Ltd | Dartford | 2025 |
| Blue Star House Limited | Manchester | 2022 |
| Blue Star Ltd | London | 2024 |
| Blue Star Mental Wealth Limited | Wallsend | 2024 |
| Blue Star Nice Pizza Ltd | Liverpool | 2022 |
| Blue Star Relocations Ltd | Ruislip, | 2025 |
| Blue Star Sushi Ltd | London | 2025 |
| Blue Star Tasty Food Ltd | Liverpool | 2026 |
| Blue Stars Services Limited | Congleton | 2019 |
| Blue Strawberry Group Limited | London | 2006 |
| Blue Strawberry Restaurants (Holdings) Limited | Chelmsford | 2015 |
| Blue Strawberry Restaurants Limited | Colchester | 2002 |
| Blue Submarine Foods Ltd | Sutton Coldfield | 2026 |
| Blue Sugar Limited | Newry | 2026 |
| Blue Sunshine Limited | Bradford | 2024 |
| Blue Swan Holiday Lets Limited | Hull | 2021 |
| Blue Swan House Hotel Ltd | London | 2024 |
| Blue Taco Limited | London | 2021 |
| Blue Tea House Ltd | Canterbury | 2022 |
| Blue Tequila Holdings Ltd | Ilfracombe | 2022 |
| Blue Text Limited | Bromsgrove | 2018 |
| Blue Thums UP Ltd | Cardiff | 2023 |
| Blue Tide Fryers Ltd | Gosport | 2025 |
| Blue Tides Food Limited | Liverpool | 2026 |
| Blue Tiffin Ltd | Royton | 2024 |
| Blue Tiffin Meir Limited | Stoke-On-Trent | 2019 |
| Blue Tiger Coffee Ltd | London | 2014 |
| Blue Tomato Cafe Limited | Bodmin | 2006 |
| Blue Tower Leisure Ltd | Liverpool | 2013 |
| Blue Trainer Limited | Thornton-Cleveleys | 2020 |
| Blue Tree Hospitality Ltd | Omagh | 2022 |