| Riya Healthcare Limited | Sidcup | 2021 |
| RJ Fire and Security Ltd | Manchester | 2025 |
| RJC Parsons Limited | Weymouth | 2008 |
| RJD ANP Services Ltd | Hartlepool | 2023 |
| RJH Fire & Security Ltd | Mansfield | 2020 |
| RJS Systems Limited | Paignton | 2019 |
| RK Vascular Limited | Hull | 2024 |
| RLB Safeguarding Ltd | Southsea | 2022 |
| RLK Defence Limited | Cambuslang | 2023 |
| Rlosbourne Ltd | London | 2026 |
| Rlsb Consulting Limited | London | 2015 |
| Rlsh Risk Management Ltd | Billingham | 2017 |
| RM Fire Protection Limited | The Drive | 2013 |
| RM SLT Ltd | Birmingham | 2018 |
| RM Traffic Management Ltd | Doncaster | 2024 |
| Rm.Resourcesolutions Ltd | Sheffield | 2025 |
| RM2 Trader Ltd | Southall | 2026 |
| RMD Horizons Limited | Station Road | 2020 |
| RNB Fire Ltd | Dagenham | 2019 |
| RNF World Ltd | Portsmouth | 2021 |
| RNJ Trading Ltd | London | 2018 |
| RNR Sprinklers Limited | Leigh-On-Sea | 2023 |
| RNR Traffic Management Limited | Wolverhampton | 2020 |
| Road 2 CEO CIC | London | 2024 |
| Roadway UK (TM) Ltd | Selby | 2014 |
| Roadwise Solutions Ltd | London | 2023 |
| ROB Cramman Fire Ltd | North Shields | 2025 |
| Robert Cole Ncdr Limited | Leeds | 2024 |
| Robert Sneesby Health & Safety Ltd | Fakenham | 2022 |
| Roberts Care Solutions Ltd | London | 2023 |
| Robiito Limited | Leicester | 2018 |
| Robin Brierley Consultancy Limited | Montgomery | 2011 |
| Robin Hood Party Ltd | Keyworth | 2017 |
| Robowatch Limited | Lydd | 2001 |
| Robson Morgan Ltd | Doncaster | 2022 |
| Rochdale Riverside Traders Ltd | Rochdale | 2023 |
| Rochealkezy-Ann Ltd | Chatham | 2020 |
| Rock Steady Boxing Tendring CIC | Clacton-On-Sea | 2026 |
| Rockfirepro Ltd | Loughton | 2026 |
| Rockingham Private Health Limited | Grimsby | 2022 |
| Rocknells Fire Protection Limited | London | 2025 |
| Rocks & Huches Limited | Portsmouth | 2024 |
| Rocky's Ameyaw Ltd | Wolverhampton | 2019 |
| Rodasa Solutions Ltd. | London | 2025 |
| Roderick Hunt Legal Services Limited | Richmond | 2010 |
| Roeco Ltd | Maidenhead | 2014 |
| ROK Fire Protection Services Ltd | Harlow, Essex, | 2026 |
| Rokani Ltd | London | 2023 |
| Romanian Association of Therapists CIC | London | 2023 |
| Ron's Social and Medical Services Ltd | Birmingham | 2023 |
| Ronald Watt HSE Services Ltd | Fraserburgh | 2018 |
| Ronesh Chandra Limited | London | 2017 |
| Ronquah Ltd | Cradley Heath | 2025 |
| Roocou Consulting Limited | Esher | 2015 |
| Root Healing With Izzy Ltd | Coventry | 2026 |
| Root'D Support Limited | Peacehaven | 2025 |
| Roots Educare CIC | Manchester | 2025 |
| Rooz Limited | Heathfield | 2010 |
| Rope Access Equipment Ltd | Banchory | 2025 |
| Roper James Limited | Plymouth | 2010 |
| Roro Risk Consultancy Ltd | London | 2018 |
| Rosant Healthcare Ltd | Middlesbrough | 2023 |
| Roscoe Fire Solutions Limited | Liverpool | 2025 |
| Rose Allen Social Work Services Ltd | Wakefield | 2016 |
| Rose King Intermediary Services Ltd | Rowley Regis | 2023 |
| Rose Museve Ltd | Norwich | 2013 |
| Roseazam Ltd | Birmingham | 2021 |
| Rosebud Ventures Ltd | London | 2026 |
| Roseforjoy Independent Living Limited | Birmingham | 2020 |
| Roseileen Healthcare Ltd | Nottingham | 2019 |
| Rosenbauer UK Limited | Holmfirth | 2008 |
| Roseville Care Ltd | Kettering | 2022 |
| Rosewood Integration Centre Community Interest Company | Barking | 2025 |
| Rosie Perry Sleeman Ltd | Reigate | 2018 |
| Roslea and District Community Forum Ltd | Roslea | 2017 |
| Ross Greenwood TM Ltd | Doncaster | 2022 |
| Rossdearg Limited | Castlederg | 2022 |
| Roséo Essence CIC | Birmingham | 2025 |
| Rotae Vehicle Fire Investigations Ltd | St. Albans | 2025 |
| Rotary Wing Training Limited | London | 2016 |
| Rothwell and Desborough Futures Limited | Kettering | 2003 |
| Roundhall Limited | Kingswinford | 2014 |
| Rowbell Trustees Limited | Croydon | 2026 |
| Rowland Charles Goodman Ltd | Bedford | 2011 |
| Rowland Fire Compliance Ltd | Welling | 2026 |
| Rowlyvette Health & Care Ltd | Wallingford | 2019 |
| Royal Artillery Institution Limited | Larkhill | 2007 |
| Royal Brompton and Harefield Hospitals Charity | London | 2011 |
| Royal Marines Association - the Royal Marines Charity | Lympstone | 2010 |
| Royal Respite Limited | Gateshead | 2015 |
| Royne Care Limited | South Ockendon | 2019 |
| Royyco Ltd | Bristol | 2021 |
| RP Fire Ltd | Minehead | 2016 |
| RPH Consultancy Ltd | Halesowen | 2025 |
| RPP Group UK Ltd. | London | 2014 |
| RR Admins Ltd | Glasgow | 2025 |
| RRD Medical Ltd | Bromley | 2024 |
| Rrsh Management Services Limited | Stoke-On-Trent | 2019 |
| RS Consulting Worldwide Ltd | Salisbury | 2022 |
| RS Fire Doors Ltd | Romford | 2025 |