| Red Rose Food and Wine | Greater Manchester | A rating |
| RED ROSE FURNISHINGS LTD | BLACKBURN | A rating |
| RED ROSE GARMENTS LTD | Blackburn | A rating |
| Red Rose Of Chessington | chessington | A rating |
| Red Rose Travel Ltd | Buckinghamshire | A rating |
| Red Rover Interactive UK Limited | Newcastle upon Tyne | A rating |
| Red Sanctuary Limited | Birmingham | A rating |
| RED SANDALWOODS LIMITED | Orpington | A rating |
| Red Sands Services Limited | London | A rating |
| Red Scarf Limited | London | A rating |
| Red Sea (Coventry) Limited TA Le Raj Balti | Coventry | A rating |
| RED SEMICONDUCTOR INTERNATIONAL LTD | Windsor | A rating |
| RED SMART APPLICATIONS LTD | Southampton | A rating |
| Red Smart Modesty | London | A rating |
| Red Squirrel Brewery Limited | Hemel Hempstead | A rating |
| Red Squirrel Shop Ltd | Erith | A rating |
| Red Squirrel Tree Surgery Ltd | London | A rating |
| RED STALLION LTD. | London | A rating |
| Red Star Growers Limited | Pershore | A rating |
| Red Star Studio Ltd | Sheffield | A rating |
| Red Storm Fashion Agency Ltd | Newport | A rating |
| Red Tap Pubs Limited | London | A rating |
| Red Technology Solutions Limited | Witney | A rating |
| Red Telecom Ltd T/A Vodafone Ltd | Newark | A rating |
| Red Train IT Ltd | Abingdon | A rating |
| Red UK Ribbons Limited T/A Toro's Steakhouse | Walsall | A rating |
| RED UNIT LTD | Edinburgh | A rating |
| Red Ventures Limited | London | A rating |
| Red Watch Security | CLEVEDON | A rating |
| RED&ORANGE LIMITED | MANCHESTER | A rating |
| Red8 Commercial Limited | Leeds | A rating |
| Reda Energy Ltd | Westhill | A rating |
| Redactive Publishing Ltd | London | A rating |
| Redalpine Venture Partners Ltd. | London | A rating |
| REDAS LTD | STAFFORD | A rating |
| Redbeck Service Station Ltd | Dewsbury | A rating |
| RedBird Capital Partners (UK) Limited | London | A rating |
| Redboon Consultancy Services Ltd | Milton Keynes | A rating |
| Redborne Upper School and Community College | Ampthill | A rating |
| Redbox Digital Limited | London | A rating |
| Redbrain Limited | Birmingham | A rating |
| Redbridge Accountant Ltd | Romford | A rating |
| REDBRIDGE APPLIANCES LTD | SEVEN KINGS | A rating |
| Redbridge Associates Limited | Cheshire | A rating |
| Redbridge Buddhist Cultural Centre | Ilford | A rating |
| Redbridge Carers Support Service | Ilford | A rating |
| Redbridge Community School | Southamton | A rating |
| Redbridge Double Glazing limited | Ilford | A rating |
| Redbridge Events LTD | Surrey | A rating |
| Redburn Innovations Ltd | Bury St Edmunds | A rating |
| Redburn Utilities Ltd | Manchester | A rating |
| Redbus Ventures Ltd | London | A rating |
| Redcar Baptist Church | Redcar | A rating |
| Redcar Borough Bears Ltd | Middlesbrough | A rating |
| Redcentric Solutions Ltd | Harrogate | A rating |
| REDCIRCLE PEST CONTROL LIMITED | Edgware | A rating |
| REDCLIFF MGT LTD | Hemel Hempstead | A rating |
| Redcliffe Hill Pharma Limited T/A Redcliffe Hill Pharmacy | Bristol | A rating |
| Redcliffe Square Limited | London | A rating |
| RedCloud Technologies Ltd | London | A rating |
| Redcompass Limited | London | A rating |
| REDCORN LTD | ESSEX | A rating |
| Redcroft Care Homes LTD | Edinburgh | A rating |
| Redd Intelligence Ltd | London | A rating |
| Reddam House Bearwood | WOKINGHAM | A rating |
| Reddie & Grose LLP | London | A rating |
| Reddie Design Ltd | London | A rating |
| Reddish Foods Ltd | Stockport | A rating |
| Reddit UK Ltd | London | A rating |
| Redditch Mosque Trust | Redditch | A rating |
| Redditch Smile Care | Redditch | A rating |
| Redditch Smile Care Dental Limited | Redditch | A rating |
| REDDITCH SPICE LTD | REDDITCH | A rating |
| Redditch Ventures Limited T/A Papa John's Pizza | Manchester | A rating |
| Reddy Architecture (UK) Ltd | London | A rating |
| Reddy Foods Ltd | Suffolk | A rating |
| REDDY GROUPS LTD | Cardiff, | A rating |
| Reddy Pai Metals Ltd | Cardiff | A rating |
| Reddy Properties Limited | London | A rating |
| REDDY RETAIL LTD | Cambridge | A rating |
| REDDY SIDDIQUI LLP | ACTON | A rating |
| Reddy Stores Ltd. | Denbigh | A rating |
| Reddy's 2 Ltd | Cambridge | A rating |
| Reddys Retails Ltd T/A M.G Grocers | Kilbirnie | A rating |
| Reddysgroup Ltd | Taunton | A rating |
| Rede Partners LLP | London | A rating |
| Redeem Christian church of God-His Pressence | Salford | A rating |
| Redeemed christian church of God,Glory of God Parish. | Bristol | A rating |
| Redeemed Care Agency Ltd | Stanford le Hope | A rating |
| Redeemed Christian Of God , Overcomers House Avonmouth | Bristol | A rating |
| Redeemed Christian Church of God | Edinburgh | A rating |
| Redeemed Christian Church of God - RCCG My Fathers House Salford | Salford | A rating |
| Redeemed Christian Church of God (RCCG) Central Office | Stevenage | A rating |
| Redeemed Christian Church of God (RCCG) Christ Church City Of Mercy | LEEDS | A rating |
| REDEEMED CHRISTIAN CHURCH OF GOD (RCCG) HARVEST FELLOWSHIP (RUGBY) | Rugby | A rating |
| Redeemed Christian Church of God (RCCG) Liberty Christian Connections | Greater London | A rating |
| REDEEMED CHRISTIAN CHURCH OF GOD CITY OF DAVID STEVENAGE | Stevenage | A rating |
| Redeemed Christian Church of God Emmanuel Christian Centre | Belfast | A rating |
| REDEEMED CHRISTIAN CHURCH OF GOD SALVATION THEATRE | BIRMINGHAM | A rating |
| REDEEMED CHRISTIAN CHURCH OF GOD, TRUE VINE CENTRE | Thornton Heath | A rating |
| Redeemed Christian Church of God, Victory Assembly | Sheffield | A rating |
| REDEEMED CHRISTIAN CHURCH OF GOD,COVENANT RESTORATION ASSEMBLY | NOTTINGHAM | A rating |
| Redeemer Church Chester-Le-Street | Chester-Le-Street | A rating |
| Redeemer Church London | Ealing | A rating |
| Redeemer Croydon Trust | Croydon | A rating |
| Redeemer Manchester | Manchester | A rating |
| Redeemer Technologies Ltd | Reading | A rating |
| Redeeming Features | London | A rating |
| REDEFINE LIVING LIMITED | STANFORD LE HOPE | A rating |
| Redefyn Dental & Aesthetics Ltd | Plymouth | A rating |
| Redemption Healthcare and Training Limited | Buckingham | A rating |
| Redev AI Ltd | London | A rating |
| Redev Ltd | Leeds | A rating |
| Redfaire Ltd | Reading | A rating |
| Redfire CR Ltd | Croydon | A rating |
| Redflex Traffic Systems Ltd | Southampton | A rating |
| REDFOAL HANDY SOLUTIONS LTD | COVENTRY | A rating |
| Redford Education International Ltd | Guildford | A rating |
| REDFORT GURKHA LTD T/A RED FORT GURKHA | Tonbridge | A rating |
| Redgate Dairy Farm Ltd | WISBECH | A rating |
| Redgate Pubs Ltd | Nuneaton | A rating |
| Redgert Comms Limited | London | A rating |
| Redgrave Search Ltd | London | A rating |
| Redhat Capital plc | London | A rating |
| Redhedge Asset Management LLP | London | A rating |
| Redhill Academy Trust | Arnold | A rating |
| Redhill Islamic Centre Trust | Redhill | A rating |
| Redhill Photo Centre Ltd | Surrey | A rating |
| Redhill Specsavers Limited | Redhill | A rating |
| Redhill Traders Limited | Redhill | A rating |
| Redholme Memory Care ltd | Liverpool | A rating |
| REDHOUSE CARE LIMITED t/as The RedHouse Care Home | Fareham | A rating |
| REDHOUSE FARMS | INVERURIE | A rating |
| Redical Limited | London | A rating |
| Redington Limited | London | A rating |
| Redis EMEA Ltd. | London | A rating |
| RedJacket Specialist Care Ltd | Salisbury | A rating |
| redk CRM Solutions Limited | Oxted | A rating |
| Redlabeloutlet Limited T/A Red Label Outlet | London | A rating |
| Redlam Surgery | Blackburn | A rating |
| REDLAND STORES AND OFF LICENCE LTD | BRISTOL | A rating |
| Redlands Primary Care | Crediton | A rating |
| RedLaw Recruitment Limited | London | A rating |
| REDLEIF CARE LTD | Fareham | A rating |
| REDLINE GARAGE LIMITED | Barking | A rating |
| REDLION BEAUTY & FASHION LIMITED | Leeds | A rating |
| Redman Whiteley Dixon Limited | Brockenhurst | A rating |
| Redman Whiteley Dixon Limited | Hampshire | A rating |
| Redmile Group UK Limited | London | A rating |
| Redmill Restaurants Ltd | Boston | A rating |
| Redmond Road General Dealers | Sunderland | A rating |
| RedMoon Global Services Limited | Hartlepool | A rating |
| Redmount Ltd | London | A rating |
| REDOOR EDUCATION LTD | London | A rating |
| Redoq LTD | Stoke on Trent | A rating |
| Redpanda Data EMEA Limited | Cheltenham | A rating |
| Redpath Deilmann UK Limited | Whitby | A rating |
| REDR UK | London | A rating |
| REDRELIC SOFTWARE LIMITED | London | A rating |
| Redrice Ventures Limited | London | A rating |
| RedRidge Diligence Services Ltd | Castleford | A rating |
| Redrock Machinery Limited | Armagh | A rating |
| Redroof | Epsom | A rating |
| Redruth Cricket Club | Redruth | A rating |
| Reds and Greens Ltd | London | A rating |
| Reds Global Ltd | Brighton | A rating |
| REDS10 MODULAR LTD | London | A rating |
| Reds10(UK) Limited | London | A rating |
| Redscan Cyber Security Limited | London | A rating |
| REDSECLABS LIMITED | London | A rating |
| Redshaw Advisors Limited | London | A rating |
| Redsift Limited | Altrincham | A rating |
| RedSix Partnership Ltd | Llanelli | A rating |
| REDSKY RISE LTD | London | A rating |
| RedSkyIT (Hemel) Limited | Hemel Hempstead | A rating |
| Redspeed International Ltd | Nr Kidderminster | A rating |
| Redsquid Communications Ltd | Borehamwood | A rating |
| REDSTAR FOODSERVICE LTD | FAREHAM | A rating |
| REDSTAR SERVICES LIMITED | Sheffield | A rating |
| Redstone Insurance Brokers Ltd | Crawley | A rating |
| Redstor Limited | Reading | A rating |
| REDTAIL TELEMATICS LIMITED | Saffron Walden | A rating |
| RedTitan Limited | High Wycombe | A rating |
| REDVERTEX Ltd | London | A rating |
| Redwan and Sons Ltd | Luton | A rating |
| Redwell Medical Centre | Wellingborough | A rating |
| REDWELL STORES | wellingborough | A rating |
| Redwin Sibley Ltd | Romford | A rating |
| Redwing Marketing UK Limited | London | A rating |
| REDWOOD CARE SOLUTIONS LIMITED | SWANSEA | A rating |
| REDWOOD FINANCIAL ASSOCIATES LIMITED | Birmingham | A rating |
| REDWOOD HEALTH CARE LIMITED | STOURBRIDGE | A rating |
| Redwood Pharmacy Limited | london | A rating |
| Redwood Practice | Dartford | A rating |
| Redwood Software UK Ltd | Slough | A rating |
| Redwood Technology Limited | Bracknell | A rating |
| Redx Pharma Plc | Macclesfield | A rating |
| ReEcho Group Limited | Cardiff | A rating |
| Reed & Mackay Travel Limited | London | A rating |
| Reed Boardall Cold Storage Ltd | York | A rating |