| RS Integrated Supply UK Limited | Biirchwood | A rating |
| RS Auto Lead Ltd | Slough | A rating |
| RS Automotive Core Ltd | Benfleet | A rating |
| RS Bodytech Ltd | Windsor | A rating |
| RS BUSINESS CONSULTANTS LTD | London | A rating |
| RS Business Consulting Limited | London | A rating |
| RS Chauffeurs Ltd | Manchester | A rating |
| RS Consultancy Services Ltd | Salford | A rating |
| RS Dairy Eats | London | A rating |
| RS Data Tech Ltd | Manchester | A rating |
| RS Dental-Norwich | Norwich | A rating |
| RS DRY CLEANING LIMITED | London | A rating |
| RS Drylining (London) Limited | Dartford | A rating |
| RS EDUCATION LIMITED | London | A rating |
| RS Engineering & Technology Limited | Aberdeen | A rating |
| RS Enterprise (London) Ltd | London | A rating |
| RS Food Services Limited | Warminster | A rating |
| RS GLOBAL LTD | Wembley | A rating |
| RS Group Plc | Corby | A rating |
| RS INFORMATICS LIMITED | Ilkeston | A rating |
| RS KNITWEAR LTD | Manchester | A rating |
| RS LANKA PETROLEUM LTD T/A BP | Stafford | A rating |
| RS Motors | Birmingham | A rating |
| RS Noor Ltd | London | A rating |
| RS PROMO LTD | GREENOCK | A rating |
| RS Property (Wembley) Ltd | Wembley | A rating |
| RS Recovery Limited | Tipton | A rating |
| RS REDDITCHLTD | REDDITCH | A rating |
| RS RESOURCES LIMITED | SHEFFIELD | A rating |
| RS Sales Nottingham Ltd | Doncaster | A rating |
| RS Scot Ltd | Scotland | A rating |
| RS SECURITY & FM LTD | Newcastle Upon Tyne | A rating |
| RS Traders Limited | London | A rating |
| RS TRANSIT LTD | London | A rating |
| RS Worldwide Ltd | Ilford | A rating |
| RS Z&Z LTD | LONDON | A rating |
| RS&A Education and Consultancy LTD | St Helens | A rating |
| RSA Associates | Southall | A rating |
| RSA Consulting Limited | London | A rating |
| RSA Films Limited | London | A rating |
| RSA GRILL LIMITED | ENFIELD | A rating |
| RSA Impex Ltd t/a Harrow Road Grocers | London | A rating |
| RSA Insurance Group Limited | London | A rating |
| RSA Insurance Group Ltd | London | A rating |
| RSA LEISURE LTD T/A INDIA GATE | DUNBLANE | A rating |
| RSA MOTORS LTD | RADCLIFFE | A rating |
| RSA Plant and Aggregates Limited | Bradford | A rating |
| RSA Security UK Ltd | London | A rating |
| RSA Structural Design Ltd | Buckhurst Hill | A rating |
| RSA SURGICAL CENTRE LIMITED | MILTON KEYNES | A rating |
| RSB Furniture Ltd | Dewsbury | A rating |
| RSB UK Transport Ltd | Derby | A rating |
| RSBC CARE LTD | Church Stretton | A rating |
| RSBG UK Limited | London | A rating |
| RSBJ Foods Ltd t/a Doughlicious | Newport | A rating |
| RSBT Limited | Brighton | A rating |
| RSC EDINBURGH TRADING LIMITED | Bathgate | A rating |
| RSD LAUNDRY LTD T/A DENAWASH | Coventry | A rating |
| RSD Social Care Ltd | Swansea | A rating |
| RSE Control Systems Limited | Leeds | A rating |
| RSEIN CREATIVE LIMITED | LONDON | A rating |
| RSG REAL ESTATE LTD | London | A rating |
| RSGD (Newcastle) Limited T/A German Doner Kebab | Dartford | A rating |
| RSGD (Rotherham) Limited T/A German Doner Kebab | Dartford | A rating |
| RSGD (Stockport) Limited T/A German Doner Kebab | Stockport | A rating |
| RSHP Architects Ltd | London | A rating |
| Rshwini Limited | Culcheth | A rating |
| RSI London Limited | London | A rating |
| RSI SOLUTIONS LTD | Watford | A rating |
| RSJB Quality Care Homes Limited T/A Abney Low Nursing home | Wirral | A rating |
| RSK Driving Services Limited | Kent | A rating |
| RSK Group Limited | Helsby | A rating |
| RSK Hospitality Ltd (T/A The Lion Hotel) | Gwynedd | A rating |
| Rsk Transport Ltd | Cannock | A rating |
| RSL Group Holdings LTD | Teddington | A rating |
| RSL Homecare Ltd t/a Right at Home Bromley | London | A rating |
| RSL NW LIMITED | London | A rating |
| RSL Wellness Limited | London | A rating |
| RSM Building Contractors Ltd | Hastings | A rating |
| RSM Fuels Limited | Crawley | A rating |
| RSM International Limited | London | A rating |
| RSM RETAILERS LTD T/A ESSO | Walsall | A rating |
| RSM UK Tax and Accounting Limited | London | A rating |
| RSM US (UK) Ltd | London | A rating |
| RSMB Limited | London | A rating |
| RSN RETAIL LTD | Hawick | A rating |
| RSNH BEAUTY WORLD LTD | LONDON | A rating |
| RSNM Rawat Ltd T/A Alveley Chutneys | Shropshire | A rating |
| RSP BUSINESS LIMITED | London | A rating |
| RSP ESTATE & LETTINGS LTD | Leicester | A rating |
| RSPA LIMITED | Sittingbourne | A rating |
| RSR BUILDERS LTD | London | A rating |
| RSR CO. LTD | SURREY | A rating |
| RSR Technologies Ltd | Rugby | A rating |
| RSR VEHICLE SERVICES LIMITED | SLOUGH | A rating |
| RSS Express Ltd T/A Ledbury Fuel Service Station | Ledbury | A rating |
| RSS Eynsham Ltd T/A Ready Steady Spice | Eynsham | A rating |
| RSS FAST FOOD SUPPLIERS LTD | SOUTH CROYDON | A rating |
| RSS Food and Fuel Shop | St. Helens | A rating |
| RSS Star Ltd | Southampton | A rating |
| RSSCAN LAB. LTD | IPSWICH | A rating |
| RSSL LTD | Gloucester | A rating |
| RSSR REPAIR AND SERVICES LTD | Uxbridge | A rating |
| RST Direct Ltd | Poyle | A rating |
| RST Enterprise Ltd | Leicester | A rating |
| RST UK PROJECT LTD | Huddersfield | A rating |
| RStar Ventures Ltd | Manchester | A rating |
| RSV Solutions Ltd | Guildford | A rating |
| RSVP (Media Response) Ltd | London | A rating |
| RSVP Corporation | London | A rating |
| RSW Healthcare Services Ltd | London | A rating |
| RT & B LIMITED T/A THE CLOVE TANDOORI | Swanley | A rating |
| RT Aroma Limited | Milton Keynes | A rating |
| RT Braeside Ltd | Glasgow | A rating |
| RT CHANDOS LTD T/a Redland Tandoori | Bristol | A rating |
| RT FOODS (MIDLANDS) LIMITED | Kettering | A rating |
| RT International Limited | London | A rating |
| RT NAILS LIMITED | Surrey | A rating |
| RT PIZZAS LIMITED t/a Real Tandoori | Banff | A rating |
| RT Staffing Ltd T/A Steps Support | Newcastle Upon Tyne | A rating |
| RT STORES LIMITED | Rochdale | A rating |
| RT-CARE SOLUTION LIMITED | Leicester | A rating |
| RTA Consulting Services Limited | London | A rating |
| RTB House Limited | London | A rating |
| RTB Technologies UK Limited | Watford | A rating |
| RTC AGENCY LIMITED | Blackpool | A rating |
| RTC CONVENIENCE STORE LTD | DYFED | A rating |
| RTC CORPORATION LIMITED | LONDON | A rating |
| RTC Europe Limited | Sittingbourne | A rating |
| RTGS Global Limited | London | A rating |
| RTJ Vet Consultancy Ltd | Oswestry | A rating |
| RTK PARTNER LTD | Manchester | A rating |
| RTK TRADING LIMITED | London | A rating |
| RTL AdAlliance Limited | London | A rating |
| RTL Enterprises | London | A rating |
| RTL Group Support Services Ltd | London | A rating |
| RTM CORPORATION LTD | AIRDRIE | A rating |
| RTMUK Limited | London | A rating |
| RTN Mental Health Solutions | London | A rating |
| RTP GLOBAL UK LTD | LONDON | A rating |
| RTQM LTD | Glasgow | A rating |
| RTR Catering Ltd T/A Moulin Hotel | Pitlochry | A rating |
| RTR FUSION UK LTD | Coventry | A rating |
| RTS BUILDERS LIMITED | Luton | A rating |
| RTS Hospitality Limited | Loughborough | A rating |
| RTS LONDON LIMITED | Harrow | A rating |
| RTS Technology Solutions Ltd T/A vanti | Birmingham | A rating |
| RTS Wind Ltd | MIDDLESBROUGH | A rating |
| RTSoftware Ltd | London | A rating |
| RTSR Healthcare | Wolverhampton | A rating |
| RTW Global Investments Ltd. | London | A rating |
| RTW Surgeries Ltd | Peterborough | A rating |
| Ru Cafe Limited | Chatham | A rating |
| RU Career Ltd | London | A rating |
| RU Future Ltd | Dagenham | A rating |
| RUA Legal Limited | Ruislip | A rating |
| Ruabon Services Ltd | Bristol | A rating |
| Ruach City Church | LONDON | A rating |
| Ruan Orchid | Chester | A rating |
| Ruane Construction Design and Consultancy Ltd. | London | A rating |
| RUANMAI THAI MASSAGE LTD | Edinburgh | A rating |
| RUBA ENTERPRISES LTD | SOUTHAMPTON | A rating |
| Ruba Limited | Teddington | A rating |
| Ruban Enterprise Ltd t/a Bridge Street Food & Wine | Banbury | A rating |
| Ruban Perfect Chicken Ltd | Kent | A rating |
| Rubani's Specialist Vehicles LTD | Leeds | A rating |
| Rubans Convenience Store | Sheffield | A rating |
| Rubberatkins | Bridge of Don | A rating |
| RUBEEZ RESTAURANT LTD | Sheffield | A rating |
| Rubi Living LTD | Northampton | A rating |
| Rubic Secure Ltd | Edinburgh | A rating |
| Rubicon Asset Consultants Limited | London | A rating |
| Rubicon Capital Consulting Company Ltd | London | A rating |
| Rubicon Children & Family Services Limited | Seaford | A rating |
| Rubicon Partners Advisers LLP | London | A rating |
| Rubie's Masquerade Company (UK) Limited | Bristol | A rating |
| Rubies Limited | Rotherham | A rating |
| Rubies Recruitment Ltd | Sale | A rating |
| Rubik Builders Limited | Telford | A rating |
| RUBIKAS UK LIMITED | London | A rating |
| RUBIO MONOCOAT UK LTD | NUNEATON | A rating |
| Rubisan Hotels London Limited | London | A rating |
| Rubix Group International Limited | LONDON | A rating |
| Rubix Group LTD | Northolt | A rating |
| Rubix Industrial Services Limited | Oldbury | A rating |
| Rubix MEP | Birmingham | A rating |
| Rubix UK Limitied | Manchester | A rating |
| RUBRICS HOME LTD | London | A rating |
| Rubrik UK Limited | London | A rating |
| Ruby Care Group Ltd | Coventry | A rating |
| Ruby Care Limited | Taunton | A rating |
| Ruby Care Services Limited | Essex | A rating |
| RUBY CARE SOLUTIONS LTD | Peterborough | A rating |
| Ruby Country Medical Group | Holsworthy | A rating |
| Ruby Grange Homecare Ltd | Watford | A rating |
| Ruby James Restaurants Limited | Ashford | A rating |
| Ruby Labs Ltd | London | A rating |
| RUBY MURRAY MK LIMITED T/A MAAYA INDIAN KITCHEN AND BAR | CENTRAL MILTON KEYNES | A rating |
| RUBY NEWS | NOTTINGHAM | A rating |
| Ruby Road Limited | London | A rating |