| Red Squirrel Construction Ltd | Construction | 2025 |
| Red Squirrel Developments Ltd | Real estate | 2025 |
| Red Squirrel Freshfield Limited | Real estate | 2012 |
| Red Squirrel Property Maintenance Ltd | Construction | 2019 |
| Red Squirrel Travel Ltd | Transport & logistics | 2019 |
| Red Sqware Interiors Limited | Construction | 2015 |
| Red Star Brewery (Formby) Limited | Manufacturing | 2015 |
| Red Sterling Consulting Ltd. | Professional & scientific | 2016 |
| Red Stone Road Valeting Ltd | Administrative & support | 2021 |
| Red Talent Recruitment Ltd | Administrative & support | 2020 |
| Red Volt Electrical NW Limited | Construction | 2026 |
| Red White Blue Ltd | Administrative & support | 2005 |
| Red Wolf Training Ltd | Professional & scientific | 2020 |
| Red-Welly Limited | Professional & scientific | 2006 |
| Redavex Catering Equipment Ltd | Wholesale & retail | 2021 |
| Redbag Pictures Ltd | Information & communication | 2006 |
| Redbird Medical Limited | Education | 2025 |
| Redbird Properties Ltd | Real estate | 2022 |
| Redbird Security Services Ltd | Administrative & support | 2026 |
| Redbourne Consultancy Limited | Professional & scientific | 2020 |
| Redbrick Asset Group Ltd | Real estate | 2026 |
| Redbridge Holdings Limited | Professional & scientific | 2003 |
| Redbridge International Recruitment Ltd | Administrative & support | 2026 |
| Redbridge Produce & Flowers Limited | Wholesale & retail | 1995 |
| Redbug Productions Ltd | Information & communication | 2025 |
| Redcrown Ltd | Wholesale & retail | 2019 |
| Reddbridge Media Limited | Information & communication | 2008 |
| Reddot Technologies Ltd | Wholesale & retail | 2025 |
| Reddrabbit Limited | Real estate | 2025 |
| Reddy Scaffolding Ltd | Construction | 2021 |
| Redeemed Christian Church of GOD, House of Praise, Liverpool Ltd | Other services | 2026 |
| Redefine Brand Studio Limited | Professional & scientific | 2025 |
| Redefine Branding Limited | Manufacturing | 2018 |
| Redemore Estates (Crowle) Limited | Real estate | 2003 |
| Redemption Limited | Professional & scientific | 2007 |
| Redemption Recovery Limited | Water & waste | 2025 |
| Redeva Limited | Professional & scientific | 2002 |
| Redevo Limited | Hospitality | 2013 |
| Redfish Ventures Limited | Professional & scientific | 2006 |
| Redford (Aigburth) Limited | Real estate | 2012 |
| Redgate Formby Ltd | Hospitality | 2023 |
| Redgoat Holding Ltd | Financial services | 2020 |
| Redgoat Ltd | Professional & scientific | 2017 |
| Redgoat Reality Ltd | Real estate | 2026 |
| Redgray Engineering Ltd | Construction | 2017 |
| Redgreen Restaurants Limited | Hospitality | 2017 |
| Redgrift Civils Ltd | Construction | 2023 |
| Redholme Memory Care Ltd | Health & social care | 2003 |
| Redholme Properties Ltd | Real estate | 2019 |
| Redhot GAS Services Ltd | Construction | 2022 |
| Redin's Pizza Ltd | Hospitality | 2024 |
| Redlight Fire Ltd | Manufacturing | 2023 |
| Redlign Consultancy Ltd | Professional & scientific | 2025 |
| Redline Courier Services Limited | Transport & logistics | 2025 |
| Redline Lettings Limited | Hospitality | 2026 |
| Redloc Liverpool Limited | Health & social care | 2015 |
| Redman Consultancy Limited | Professional & scientific | 2019 |
| Redman Properties (UK) Ltd | Real estate | 2010 |
| Redmen Financial Limited | Administrative & support | 2011 |
| Redmilo Limited | Financial services | 2025 |
| Redmond Properties Limited | Real estate | 2018 |
| Redpro Limited | Construction | 2007 |
| Redrock Estates Ltd | Real estate | 2020 |
| Redrocks Decoration & Construction Ltd | Construction | 2019 |
| Reds Events Ltd | Arts & recreation | 2025 |
| Reds Marketing Ltd | Professional & scientific | 2025 |
| Reds Vans Rentals Ltd | Administrative & support | 2026 |
| Redside Group Limited | Construction | 2025 |
| Redsnare Music Group Ltd | Arts & recreation | 2023 |
| Redsun H Holdings Limited | Professional & scientific | 2017 |
| Redsun Infrastructure Ltd | Real estate | 2018 |
| Redsun Investments Ltd | Real estate | 2011 |
| Redsun Projects 2.0 Ltd | Real estate | 2023 |
| Redsun Projects Limited | Construction | 2016 |
| Redsun Properties Ltd | Real estate | 2018 |
| Redwalk Properties Ltd | Real estate | 2019 |
| Redwall Properties Limited | Real estate | 1999 |
| Redway Holdings Limited | Financial services | 2022 |
| Redwood Bars Limited | Hospitality | 2014 |
| Redwood Brokers Ltd | Wholesale & retail | 2015 |
| Redwood Joinery & Construction Ltd | Construction | 2024 |
| Redwood Windows Limited | Construction | 2007 |
| REDZEBRA25 Ltd | Manufacturing | 2022 |
| Reece Deliveries Ltd | Transport & logistics | 2025 |
| Reed & Co Solicitors Ltd | Professional & scientific | 2020 |
| Reed Ltd | Professional & scientific | 1988 |
| Reeda Property Investment Limited | Real estate | 2026 |
| Reedon Technologies PVT Ltd | Information & communication | 2013 |
| Reeds Mews Management Ltd | Households | 1998 |
| Reeflink Labs Limited | Information & communication | 2024 |
| Reel Creative Studio Limited | Professional & scientific | 2025 |
| Reel Escapes Fishing Tours Ltd | Administrative & support | 2025 |
| Reema Housing Limited | Hospitality | 1997 |
| Reeo CIC | Health & social care | 2019 |
| Rees Coatings Ltd | Manufacturing | 2018 |
| Rees-Roberts Limited | Professional & scientific | 2024 |
| Reesco Ltd. | Professional & scientific | 2019 |
| Refectory Consulting Limited | Administrative & support | 2017 |
| Refine Creative Limited | Information & communication | 2023 |
| Refine Land (UK) Ltd | Construction | 2026 |