| Rosemary Court (Bournemouth)Limited | Other services | 1970 |
| Rosemary Court (Ferndown) Limited | Real estate | 1999 |
| Rosemary Court (Freehold) Limited | Other services | 2021 |
| Rosemary Gardens Management Limited | Households | 1992 |
| Rosemead Investments Limited | Health & social care | 2005 |
| Rosemount (Southbourne) Limited | Households | 1996 |
| Rosemount Freehold (Bournemouth) Limited | Households | 2010 |
| Rosemount Lodge Management Company Limited | Households | 2000 |
| Roses of Bournemouth Limited | Wholesale & retail | 1999 |
| Rosetree Residents Association Limited | Households | 1982 |
| Roseville Lodge Management Company Ltd | Households | 2001 |
| Roslin Hall Freehold Limited | Households | 2002 |
| Rosmay Properties Limited | Real estate | 2000 |
| Rosmita Ltd | Transport & logistics | 2018 |
| Ross Davies Heating Ltd | Construction | 2017 |
| Ross Electrical Contractors Ltd | Construction | 2016 |
| Ross&G Limited | Hospitality | 2026 |
| Rossano Limited | Real estate | 2002 |
| Rossi International Ltd. | Wholesale & retail | 2006 |
| Rossi Isabella Limited | Hospitality | 2026 |
| Rossiters Quay Freehold Limited | Households | 2011 |
| Rossman Contracts Limited | Construction | 2018 |
| Rossman Limited | Manufacturing | 2017 |
| Rota Education&Consultancy Ltd | Education | 2025 |
| Rotadock Limited | Construction | 2012 |
| Rothan Residential Limited | Real estate | 2003 |
| Rothbury Park Freehold Limited | Households | 2004 |
| Rothchild Estates Limited | Construction | 1989 |
| Rothesay (Bournemouth) Investments Limited | Real estate | 2021 |
| Rothesay Events Limited | Real estate | 2016 |
| Rotisserienq Ltd | Hospitality | 2018 |
| Rouse Property Maintenance Ltd | Construction | 2026 |
| Rouse Property Management Ltd | Real estate | 2025 |
| Routine Riots Ltd | Arts & recreation | 2023 |
| Rowan and Sons Properties Ltd | Real estate | 2024 |
| Rowlands Hill (Wimborne) Management Limited | Households | 2022 |
| Rowlands Walk (Bunns Lane) Management Company Limited | Households | 1980 |
| Roxborough Freehold Company Limited | Real estate | 2003 |
| Roxy Mobile Ltd | Wholesale & retail | 2019 |
| Roxy's Bistro Bar Limited | Hospitality | 2014 |
| Royal London House Limited | Other services | 2022 |
| RPG Twickenham Holdings Ltd | Real estate | 2026 |
| RPH Construction Co. Ltd | Construction | 2013 |
| RRB Contracting Ltd | Construction | 2024 |
| Rrrm Ltd | Construction | 2019 |
| RS Landscapes & Building Services Ltd | Administrative & support | 2018 |
| RS Movie Ltd | Information & communication | 2021 |
| RS Pizzas Limited | Hospitality | 2010 |
| RS Retail (Swadlincote) Limited | Wholesale & retail | 2017 |
| RSB Globnet Ltd | Wholesale & retail | 2020 |
| RSH Consultants Limited | Information & communication | 2024 |
| Rsharp Limited | Professional & scientific | 2021 |
| RSL Bournemouth Limited | Construction | 2003 |
| RSL Inc Ltd | Professional & scientific | 2011 |
| RSR Racing Ltd | Arts & recreation | 2023 |
| RST Westbourne Limited | Hospitality | 2025 |
| RT Swimming Pool Services Limited | Construction | 2019 |
| Rt.Sportstherapy Ltd | Other services | 2022 |
| RTB Associates Ltd | Professional & scientific | 2024 |
| RTB Catering Limited | Hospitality | 2021 |
| RTM FC Company Limited | Households | 2017 |
| Rtsan Limited | Construction | 2018 |
| Ruauthorised Limited | Administrative & support | 2006 |
| Ruby Beach Ltd | Construction | 2021 |
| Ruby Enterprises Limited | Hospitality | 2025 |
| Ruby N Rocco Ltd | Hospitality | 2019 |
| Ruckus Music Ltd | Information & communication | 2020 |
| Ruddlemoor Farm Management Limited | Households | 2023 |
| Rudkin Properties Limited | Households | 2018 |
| Rudpark Management Company Limited | Households | 2000 |
| RUE D'Albert LLP | | 2014 |
| Ruislip Manor Property Ltd | Real estate | 2016 |
| Ruklan Tech Limited | Other services | 2026 |
| Rumah UMI Hoki Limited | Households | 2020 |
| Rumble With the Agents Limited | Arts & recreation | 2015 |
| Rummane Ltd | Hospitality | 2018 |
| Rumours Lounge Bar Ltd | Hospitality | 2026 |
| Run Ashore Ltd | Hospitality | 2025 |
| Runbright Limited | Wholesale & retail | 2020 |
| Runners Roots Limited | Health & social care | 2025 |
| Running Horse Trading Limited | Wholesale & retail | 2025 |
| Runwiz Ltd | Information & communication | 2022 |
| Rupert Brown Associates Ltd | Professional & scientific | 2025 |
| Rupert Ltd | Professional & scientific | 2003 |
| Rupert Property Management Ltd | Professional & scientific | 2003 |
| Rural Commercial Limited | Financial services | 2024 |
| Rusbridge Limited | Professional & scientific | 2026 |
| Rush Consultants Limited | Professional & scientific | 2005 |
| Rushton Electronics Ltd | Professional & scientific | 2018 |
| Ruskin Racing Ltd | Manufacturing | 2021 |
| Russell Bars Ltd | Hospitality | 2011 |
| Russell Fareham Associates Ltd | Other services | 2013 |
| Russell Scaffolding Holdings Limited | Financial services | 2019 |
| Russo Inc Limited | Professional & scientific | 2019 |
| Rusty Nail Maintenance Ltd | Construction | 2025 |
| Rutherford (NO.2) Limited | Households | 2000 |
| Rutland Manor RTM Company Limited | Households | 2017 |
| RVB Entertainment Limited | Information & communication | 2019 |
| RWB Theatre Services Limited | Arts & recreation | 2009 |
| Rwresi Ltd | Hospitality | 2025 |