| Rebellion Health Ltd | Arts & recreation | 2021 |
| Rebin Barbers Ltd | Other services | 2022 |
| Rebirth Apparel Limited | Wholesale & retail | 2023 |
| Reboot Earth Ltd | Information & communication | 2021 |
| Reboot Healthcare Limited | Other services | 2025 |
| Reborn Professional Shoe Cleaning Ltd | Other services | 2025 |
| Rebound Community Wellbeing CIC | Arts & recreation | 2008 |
| Rebound Sports UK Ltd | Manufacturing | 2020 |
| Rebounders Consultancies Limited | Education | 2025 |
| Rebounders Therapy and Development Centre CIC | Education | 2026 |
| Rebounders Therapy and Training Centre Ltd | Education | 2021 |
| Rebric Limited | Real estate | 2020 |
| Rebuild Wellness Ltd | Wholesale & retail | 2026 |
| Rebuild Wirral Limited | Construction | 2024 |
| REC Projects Limited | Wholesale & retail | 2020 |
| Recall Marketing Ltd | Professional & scientific | 2022 |
| Recflix Ltd | Administrative & support | 2024 |
| Rechovot Ltd | Health & social care | 2024 |
| Recognised Services Limited | Administrative & support | 2017 |
| RECON1 Limited | Information & communication | 2024 |
| Reconnect Education & Training Ltd | Education | 2024 |
| Reconnect Property Ltd | Real estate | 2025 |
| Recova Labs Ltd | Wholesale & retail | 2026 |
| Recovery Liverpool Limited | Wholesale & retail | 2023 |
| Recovery North West Holdings Ltd | Financial services | 2017 |
| Recovery North West Limited | Wholesale & retail | 2002 |
| Recovery Runners (RR) CIC | Education | 2024 |
| Recovery Tech Services Ltd | Other services | 2018 |
| Recovery to ME Ltd | Transport & logistics | 2026 |
| Recovery Transport Ltd | Water & waste | 2024 |
| Recruit 4 Build Limited | Administrative & support | 2019 |
| Rectangle Electronics Ltd | Other services | 2019 |
| Rectangle Stuff Ltd | Real estate | 2020 |
| Recursive INK Ltd | Information & communication | 2024 |
| Recytex Ltd | Wholesale & retail | 2018 |
| Red & Black Comics Ltd | Arts & recreation | 2015 |
| Red & Blue Property Ltd | Real estate | 2021 |
| Red 5 Timber Ltd | Manufacturing | 2024 |
| Red and Blue Restaurants Limited | Hospitality | 2010 |
| Red and White Top Ltd | Wholesale & retail | 2025 |
| Red ANT Holdings Ltd | Real estate | 2016 |
| Red Apple Ltd | Administrative & support | 2017 |
| Red Arrow Inns (NW) Ltd | Hospitality | 2025 |
| Red AXE Capital Limited | Professional & scientific | 2022 |
| Red Bird Network Solutions Ltd | Manufacturing | 2024 |
| Red Black and White DMS Ltd | Professional & scientific | 2024 |
| Red Box Contracting Limited | Construction | 1993 |
| Red Box Sourcing Ltd | Other services | 2018 |
| Red Brick Liverpool Ltd | Real estate | 2020 |
| Red Cormorant Properties Limited | Real estate | 2012 |
| Red COW IT Ltd | Information & communication | 2019 |
| Red Dirt Group Ltd | Real estate | 2023 |
| Red DOT Joinery Limited | Construction | 2026 |
| Red Dragon Campervans Ltd | Administrative & support | 2026 |
| Red Dragon Professional Consultancy Services Ltd | Other services | 2025 |
| Red Events (NW) Ltd | Extraterritorial | 2007 |
| Red Games Consulting Ltd | Professional & scientific | 2023 |
| Red Giant Planet Ltd | Real estate | 2022 |
| Red Grill L13 Ltd | Hospitality | 2026 |
| Red Guardian Security Limited | Administrative & support | 2025 |
| Red Guru Limited | Arts & recreation | 2013 |
| Red HAT Consulting Ltd | Professional & scientific | 2020 |
| Red Hazels Developments Limited | Real estate | 2015 |
| Red Hazels Limited | Hospitality | 2018 |
| Red Hexagon Ltd | Construction | 2025 |
| Red Hire NW Ltd | Administrative & support | 2024 |
| Red Hot Balloon Limited | Real estate | 2019 |
| Red House Press Ltd | Professional & scientific | 2022 |
| Red JAM JAR Limited | Wholesale & retail | 2019 |
| Red Kettle Media Limited | Professional & scientific | 2009 |
| Red Light Pro UK Ltd | Wholesale & retail | 2026 |
| Red Line Entertainment Ltd | Information & communication | 2026 |
| Red Locations Limited | Information & communication | 2024 |
| Red Mark Design Company Limited | Professional & scientific | 1987 |
| Red MED Reporting Limited | Professional & scientific | 2015 |
| Red Mersey Ltd | Hospitality | 2023 |
| Red Mortgages Ltd | Financial services | 2020 |
| Red MUG Ltd | Real estate | 2026 |
| Red Ninja Labs Ltd | Information & communication | 2019 |
| Red on Events Ltd | Education | 2024 |
| Red on Fitness Ltd | Wholesale & retail | 2017 |
| Red on Holdings Ltd | Financial services | 2023 |
| Red on Investment Group Limited | Financial services | 2024 |
| Red on Performance Ltd | Administrative & support | 2023 |
| Red on Socks Ltd | Wholesale & retail | 2021 |
| Red Panda Projects Ltd | Information & communication | 2017 |
| Red Peloton Ltd | Other services | 2020 |
| Red Phoenix Holding Limited | Manufacturing | 2025 |
| Red River Trading Ltd | Wholesale & retail | 2023 |
| Red Road Haulage Ltd | Transport & logistics | 2019 |
| Red Room Ventures Ltd | Manufacturing | 2020 |
| Red Rooves Limited | Real estate | 2017 |
| Red RUM Deli Ltd | Hospitality | 2024 |
| Red Run Limited | Wholesale & retail | 2020 |
| Red Sea News Ltd | Other services | 2019 |
| Red Shield Business Services Ltd | Administrative & support | 2026 |
| Red Sky Clothing Ltd | Wholesale & retail | 2025 |
| Red Slopes Soccer Ltd | Arts & recreation | 2019 |
| Red Square Property Surveyors Limited | Professional & scientific | 2025 |
| Red Squirrel Car Wash Ltd | Administrative & support | 2025 |