| Rockline Industries Limited | Redditch | A rating |
| ROCKROSE UKCS4 LIMITED | London | A rating |
| Rocks Lane Montessori | London | A rating |
| Rocks Lines Ltd t/a The Bell Rock Restaurant | Arbroath | A rating |
| Rockstar Games UK Limited | Edinburgh | A rating |
| Rockstead Ltd | High Wycombe | A rating |
| Rocksteady Studios Limited | London | A rating |
| Rocktech IT and Security Solutions Ltd | Hounslow | A rating |
| ROCKTOWER HOMES LTD | Great Warley | A rating |
| ROCKVALE INTERNATIONAL LIMITED | Worthing | A rating |
| Rockwell Automation UK Ltd | Milton Keynes | A rating |
| Rockwood Composites Limited | Paignton | A rating |
| Rockwood Estates Limited | Hounslow | A rating |
| Rockwood Specialties Limited | London | A rating |
| Rockwool Ltd | Bridgend | A rating |
| ROCKY AFRICAN CLOTHING LIMITED | Manchester | A rating |
| ROCKY FRESH PRODUCE LTD | Southall | A rating |
| Rocky's Choice Limited T/a Rocky's | Hounslow, | A rating |
| ROCKY'S CONSTRUCTION LTD | London | A rating |
| ROCKY'S SOUTHALL LTD,T/A ROCKY'S | Southall | A rating |
| Roco9 Ltd | Newry | A rating |
| Rocpool Reserve Hotel | Inverness | A rating |
| Rode (UK) Ltd | Marlow | A rating |
| Rode Park and Lawton Cricket Club | Stoke On Trent | A rating |
| Roden Ltd | London | A rating |
| Rodenvine (Nottingham) Limited | Nottingham | A rating |
| Rodeo Goods Ltd | Reading | A rating |
| Rodeo Productions | London | A rating |
| Rodeo The Agency LTD | London | A rating |
| Rodericks Dental Partners Limited | Northampton | A rating |
| RODEW LTD | Edinburgh | A rating |
| Rodgers Leask Ltd | Birmingham | A rating |
| RODIN LIMITED t/a CORZA CAFE BAR RESTAURANT | London | A rating |
| Rodin Motorsport Limited | Farnham | A rating |
| Rodira News | Reading | A rating |
| Rodizio Rico Birmingham Limited | Birmingham | A rating |
| Rodl & Partner Limited | Birmingham | A rating |
| Rodman Pearce Solicitors Limited | Luton | A rating |
| Rodmatic Ltd | Reading | A rating |
| Rodney Melville & Partners Ltd | Leamington Spa | A rating |
| Rodssy Ltd | London | A rating |
| Roe Environmental Ltd | Chelmsford | A rating |
| Roe Farm Convenience Store | Derby | A rating |
| Roe Green Cricket Club | Worsley | A rating |
| ROE GREEN WINDOWS LIMITED | WEMBLEY | A rating |
| Roe Park Holdings Limited T/A Roe Park Resort | Limavady | A rating |
| Roebuck A M LLP | London | A rating |
| Roedean School | Brighton | A rating |
| Roedl Legal Limited | Birmingham | A rating |
| Roehampton Club Limited | London | A rating |
| Roehampton University | London | A rating |
| Roel Limited | Stratford-Upon-Avon | A rating |
| Roeslein & Associates, Ltd. | Northampton | A rating |
| Rofemaron Healthcare LTD | Hungerford | A rating |
| Rogan & Company | Cartmel | A rating |
| Roger Bullivant Limited | Swadlincote | A rating |
| Roger Oates Design Company Limited | Ledbury | A rating |
| Roger Wong Ltd | London | A rating |
| Rogers Clarke Lander Ltd | Derby | A rating |
| ROGERS DIGITTAL LIMITED | London | A rating |
| Rogers House | Gillingham | A rating |
| Rogers Newsagents | Wrexham | A rating |
| Rogers Spencer Limited | Nottingham | A rating |
| Rogerwilco Limited | Cleckheaton | A rating |
| Rogo Technologies Ltd | London | A rating |
| ROGUE FILMS LIMITED | LONDON | A rating |
| Rohail Razzaq T/A Fair Price Foods | London | A rating |
| ROHAN CARE LIMITED T/A St Margarets Nursing home | Hythe, Kent | A rating |
| Rohan Tattoo Studio Ltd T/a Rohan Tattoo Studio | LEICESTER | A rating |
| Rohan's Pub Company Ltd T/As The Blue Ball | Oakham | A rating |
| Rohde & Schwarz Services Limited | Fleet | A rating |
| Rohde Nielsen Offshore Services UK Limited | London | A rating |
| ROHINI CATERING LIMITED T/A FISHPONDS TAP | FISHPONDS | A rating |
| ROHIT LTD | Coventry | A rating |
| Rohit soni co ltd | Ipswich | A rating |
| Rohlig UK Ltd | Middx | A rating |
| ROHMA CONSULTANCY LTD | Oxford | A rating |
| ROI E-SOLUTIONS LTD | London | A rating |
| ROIAL CARINGSERVICES LTD | Milton Keynes | A rating |
| Roivant Sciences Ltd | London | A rating |
| ROJ BUILDING & CONSTRUCTION LTD | London | A rating |
| ROJA ACCOUNTANT AND CONSULTANCY LTD | COVENTRY | A rating |
| Roja Parfums Holdings Limited | Brighton | A rating |
| ROJOBE LTD TA Dalchini Tewkesbury | Tewkesbury | A rating |
| ROJS MEDIA UK LTD | Aberdeen | A rating |
| ROKA DESIGN LTD | London | A rating |
| Rokco Restaurants Ltd T/A Delhi's Winter | Linlithgow | A rating |
| ROKETSU LTD | LONDON | A rating |
| Rokewood Court Care Home | Kenley | A rating |
| ROKIB ALI T/A ALISHAN TANDOORI | Camberley | A rating |
| Rokitch Limited | Harrow | A rating |
| Rokith Retail Ltd | Pinner | A rating |
| ROKITH RETAIL QB LTD | Middlesex | A rating |
| ROKKA IT CONSULTANCY LTD | Bracknell, Berkshire, | A rating |
| ROKO LTD | LONDON | A rating |
| Rokos Services (UK) Limited | London | A rating |
| Rokpa Trust | Langholm | A rating |
| Rokstone Group Ltd | London | A rating |
| Rokstone Limited | London | A rating |
| Rokt UK Ltd | London | A rating |
| Roku UK Limited | Cambridge | A rating |
| Roky Care Ltd | London | A rating |
| ROL CONSTRUCTION LTD | St Albans | A rating |
| Rolan Consultancy Ltd | Hornchurch | A rating |
| Roland Berger | London | A rating |
| Roland Europe Group Limited | Reading | A rating |
| Roland Forestry (UK) Ltd | Glasgow | A rating |
| Roland Residential Care Homes LImited | London | A rating |
| Rolec Services Ltd | Boston | A rating |
| ROLEOVER LTD | West Bromwich | A rating |
| Rolepoint Limited | LONDON | A rating |
| Rolex Trading Company | Bradford | A rating |
| Rolfe Judd Planning | London | A rating |
| Rolfes Stores Limited | Folkestone | A rating |
| ROLINE TECHNOLOGY (UK) LIMITED | London | A rating |
| Rolla Granola Ltd | St albans | A rating |
| Rolle Medical Partnership | Exmouth | A rating |
| Rollem Patent Products Ltd | Barnsley | A rating |
| Roller Nation | London | A rating |
| ROLLER Networks LTD | London | A rating |
| Rolleston Cricket club | Burton on Trent | A rating |
| ROLLIN RATES LTD | Leicester | A rating |
| ROLLING COMPONENTS LIMITED | BASILDON | A rating |
| Rolling Hearts Care Ltd | Slough | A rating |
| Rolling Millions Ltd | Birmingham | A rating |
| Rolling Pin Bakery Ltd | Fulham | A rating |
| ROLLING PRODUCT HOUSE LIMITED | Kent | A rating |
| ROLLINGFLOW LTD | Stretford | A rating |
| Rollo Campbell Fine Art Ltd | London | A rating |
| Rolls-Royce plc | Derby | A rating |
| Rolls-Royce SMR Limited | Derby | A rating |
| Rollys London Ltd | London | A rating |
| Rolman World UK Limited | Wisbech | A rating |
| Rolta UK Limited | Reading | A rating |
| ROMA ESCAPE LTD | South Yorkshire | A rating |
| ROMA PIZZA HAYES LIMITED | Hayes | A rating |
| Roma XP Limited | Stockport | A rating |
| Romad Limited | Uxbridge | A rating |
| Roman Catholic Archdiocese of Southwark | London | A rating |
| Roman Catholic Diocese and Parishes of Clogher | Enniskillen | A rating |
| Roman Catholic Diocese of Aberdeen | Aberdeen | A rating |
| Roman Catholic Diocese of Argyll and the Isles | Oban | A rating |
| Roman Catholic Diocese of Dunkeld | Dundee | A rating |
| Roman Catholic Diocese of Galloway | Ayr | A rating |
| Roman Catholic Diocese of Motherwell | Motherwell | A rating |
| Roman Catholic Diocese of Salford | Salford | A rating |
| Roman Catholic,carthusian order of monks | horsham | A rating |
| Roman Furniture London Ltd | london | A rating |
| Roman Ltd | Newton Aycliffe | A rating |
| Roman Originals | Birmingham | A rating |
| Roman pound Plus Ltd | London | A rating |
| ROMAN ROAD PFC LTD | LONDON | A rating |
| Roman Services Ltd | High Wycombe | A rating |
| ROMAN SUPERSTORE LTD | London | A rating |
| ROMANA GROUP LTD | Slough | A rating |
| ROMANA HAULAGE LTD | HAYES | A rating |
| Romanacci Ltd | Ayr | A rating |
| Romanian Orthodox Church Bristol | Bristol | A rating |
| Romanian Orthodox Church on Merseyside (ROCOM) | WIRRAL | A rating |
| Romax Marketing and Distribution Ltd | Orpington | A rating |
| Romax Technology Limited | Nottingham | A rating |
| ROMAXX INDUSTRY LTD | Rochdale | A rating |
| Romazzino LTD | Nantwich | A rating |
| Rombald Group Ltd | Leeds | A rating |
| ROMCO LOGISTICS LTD | BIRMINGHAM | A rating |
| Romeo's Takeaway | Derry | A rating |
| ROMEOS PIZZA LTD | London | A rating |
| Romford Baptist Church Housing Association Ltd | Romford | A rating |
| ROMFORD CARPETS LTD | Ilford | A rating |
| ROMFORD EVENTS LTD t/a Mayfair Venue | Romford | A rating |
| Romford Fish Limited | Romford | A rating |
| ROMFORD HALAL MEATS LIMITED | Essex | A rating |
| Romford Healthcare Limited t/a Sapphire Pharmacy | Romford | A rating |
| ROMFORD MOTORS LTD | Romford | A rating |
| ROMFORD SECURITY SERVICES LIMITED | Ilford | A rating |
| ROMFORD SERVICE STATION LIMITED | Romford | A rating |
| Romi Machines UK Ltd | Rugby | A rating |
| Romie Care Services LTD t/a SureCare Birmingham | Birmingham | A rating |
| ROMIL Ltd | Waterbeach | A rating |
| Romila Consultancy Ltd | Reading | A rating |
| Romney House Dental Practice | Ashford | A rating |
| Romney Hythe and Dymchurch Railway Ltd. | New Romney | A rating |
| ROMO Ltd | Sutton-in-Ashfield | A rating |
| Rompol Bars Uk Limited | lichfield | A rating |
| Roms & D Limited | Nottingham | A rating |
| Romulus Holdings Limited | London | A rating |
| Ron Construction Ltd | DUNSTABLE | A rating |
| Ron Hague Ltd | Shipley | A rating |
| Ron W Dew and Son Ltd | Somersham | A rating |
| Ronald Fletcher Baker LLP | London | A rating |
| RONDANINI UK LIMITED | London | A rating |
| RONDEL TRADING LTD | Birmingham | A rating |
| Rondia LLP | London | A rating |
| Ronghan International Limited | London | A rating |
| Rongxin Power Limited | Altrincham | A rating |
| Ronly Limited | London | A rating |
| Ronnak Private Ltd | Sunbury-on-Thames | A rating |
| Ronnie Catering Ltd | Portsmouth | A rating |
| Ronnie Interior Limited | Kent | A rating |
| Rontec Watford Limited | Watford | A rating |