| Remote Technology Services LTD | London | A rating |
| Remotepass Ltd | London | A rating |
| Remous Print Limited | Sherborne | A rating |
| Rempapa Limited | London | A rating |
| REMS BESPOKE LTD | London | A rating |
| Remsdaq Limited | Deeside | A rating |
| Remshall Limited (T/A Dream Nails) | London | A rating |
| Remspence Ltd T/A Envoy of Belfast | belfast | A rating |
| REMY COINTREAU UK DISTRIBUTION LIMITED | London | A rating |
| Remyck House | Aldershot | A rating |
| Remys Cafe Kulinarya | East Sussex | A rating |
| REN CARING LTD | Buckhurst Hill | A rating |
| Ren Trading Limited t/a Cosmo World Buffet Restaurant Derby | Derby | A rating |
| Ren-IT Limited | West Ealing | A rating |
| Renair Antennae Limited | Kent | A rating |
| Renaisi-TSIP Ltd | London | A rating |
| Renaissance Associates Limited | Manchester | A rating |
| Renaissance Capital Limited | London | A rating |
| Renaissance Care (Scotland) Ltd | Musselburgh | A rating |
| RENAISSANCE COMMUNITY CARE SERVICES Ltd t/as ASHWOOD RESIDENTIAL CARE HOME | WIGAN | A rating |
| RENAISSANCE INFOTECH LIMITED | Wallington | A rating |
| Renaissance Learning UK Limited | Brentford | A rating |
| Renaissance Learning UK Ltd | London | A rating |
| Renaissance Nurseries Leeds Ltd | Leeds | A rating |
| Renaissance Pathway Care limited | Northampton | A rating |
| Renaissance Philanthropy UK Limited | London | A rating |
| Renaissance Solicitors LLP | London | A rating |
| Renaissance Strategic Advisors Ltd | London | A rating |
| Renaissance Ventures Limited | London | A rating |
| Renaissance Wealth Management (UK) Limited | London | A rating |
| RenaissanceRe Syndicate Management Limited | London | A rating |
| RENAL HEALTH LIMITED T/A CHASE PARK NEURO CENTRE | Newcastle | A rating |
| Renal Health Organisation (UK) LTD | London | A rating |
| Renantis UK Limited | London | A rating |
| Renard Limited | London | A rating |
| Renas | Surbiton | A rating |
| RENAS CONSTRUCTION LTD | St Helens | A rating |
| RENATECH LIMITED T/A ENGINE CARE | SOUTHALL | A rating |
| Renault Retail Group Limited | London | A rating |
| Renault Trucks Commercial Ltd | Warwick | A rating |
| Renault UK | Rickmansworth | A rating |
| RENBAKE PATISSERIE LTD | LONDON | A rating |
| RENBUILD LTD | Glasgow | A rating |
| Rencare homes ltd | London | A rating |
| Rency Ltd T/A Greetings | London | A rating |
| Rendcomb College | Nr Cirencester | A rating |
| Rendel Limited | London | A rating |
| Renderal-UK Ltd | Salford | A rating |
| RENDERMINE LTD | SHEFFIELD | A rating |
| Rendesco | Cheltenham | A rating |
| Rendezvous Care Services Ltd | Camberley | A rating |
| Rendezvous Solutions Limited | Bristol | A rating |
| Rendlesham Dental Practice | Woodbridge | A rating |
| RENE CLINIC LONDON LIMITED | London | A rating |
| Rene Flame Ltd | London | A rating |
| RENEA COSMETICS CLINIC LTD | Bolton | A rating |
| RenEco Ltd | Rushden | A rating |
| Renee Healthcare Services LTD | Gosport | A rating |
| Renegade Communications Ltd | Edinburgh | A rating |
| RenEnergy Limited | Blofield Heath | A rating |
| Renesas Design (UK) Limited | Bourne End | A rating |
| Renesas Electronics Europe GmbH | Bourne End | A rating |
| Renesco UK Limited | London | A rating |
| RENEW DRYCLEANERS LTD | LONDON | A rating |
| Renew Drycleaners Pvt Ltd | London | A rating |
| ReNew Energy Global Plc | Uxbridge | A rating |
| Renew Risk Limited | Shenfield | A rating |
| Renew Skin and Health Clinic LTD | Lemington Spa | A rating |
| Renewabl Ltd | London | A rating |
| Renewable Energy Services Team Ltd | CANTERBURY | A rating |
| Renewable Facilities Management Services Limited | Neath | A rating |
| Renewable Metals UK Limited | Saltley | A rating |
| RENEWABLE NETWORK LTD | Bradford | A rating |
| Renewable Parts Ltd | Renfrew | A rating |
| Renewable Power Capital Limited | London | A rating |
| RENEWABLE SOLUTIONERS LTD | Milton Keynes | A rating |
| Renewable-Energy-Company UK Limited | North Shields | A rating |
| RENEWABLES PROJECT MANAGEMENT LTD | Hillingdon | A rating |
| Renewed Care Solutions Limited | Greenford | A rating |
| RENEWHUE LTD | Dartford | A rating |
| RENFORD LIMITED T/A REDFORT TANDOORI | BASINGSTOKE | A rating |
| RENFREW CRICKET CLUB | RENFREW | A rating |
| Renfrewshire Carers Centre | Paisley | A rating |
| Renfrewshire Council | Paisley | A rating |
| Renfrewshire effort to empower minorities | paisley | A rating |
| Reni Care Personnel | Croydon | A rating |
| Renishaw plc | Wotton-under-Edge | A rating |
| RenKap Ltd | LONDON | A rating |
| RENLON LIMITED | Mitcham | A rating |
| Renn Consultancy Ltd t/a Emulous Water | Wells | A rating |
| Rennie Grove Peace Hospice Care | Watford | A rating |
| RENNIE MACKINTOSH LIMITED | Glasgow | A rating |
| RENOMAXRENOVATION LTD | London | A rating |
| Renov8 Spaces Limited | Loughborough | A rating |
| RENOVA BUILDERS LTD | Barking | A rating |
| Renova Estates Ltd | London | A rating |
| Renovar Ventures Ltd | London | A rating |
| Renovate Properties Ltd | Ilford | A rating |
| Renovate Wellness Limited, T/A Chiltern Physiotherapy | Chorleywood | A rating |
| RENOVATION & DECORATION UK LTD | Dagenham | A rating |
| Renovation and More Ltd | London | A rating |
| Renovo Autocentre Ltd | Manchester | A rating |
| Renovo Brighton Limited | Brighton | A rating |
| Renovo Hollanden Park Limited | Kent | A rating |
| Renovo Solutions Limited | Stanley | A rating |
| Renovos Biologics Limited | Southampton | A rating |
| Renown Ideas Limited | Manchester | A rating |
| Renowned Ltd | London | A rating |
| RENPHYS LIMITED | Liverpool | A rating |
| Rensair Limited | London | A rating |
| Rensri Express Ltd | Houghton Regis, Dunstable | A rating |
| Renstep Health Care Services | London | A rating |
| Rent Connect Housing Limited | Luton | A rating |
| Rent Eaze Ltd | Stoke on Trent | A rating |
| Rent My Space Ltd | Liverpool | A rating |
| Rentably Ltd | Poole | A rating |
| Rentec Ltd | Poole | A rating |
| RentiD Limited | Reading | A rating |
| Rentigo Ltd | Grays | A rating |
| RENTLONDONFLAT.COM LTD | London | A rating |
| Rentokil Initial 1927 plc | Crawley | A rating |
| Rentokil Initial UK Limited | Crawley | A rating |
| Rentr Limited | Leamington Spa | A rating |
| Renvale Ltd | Brome | A rating |
| REO Digital Limited | London | A rating |
| REONCARE LTD | CORBY | A rating |
| Repa Engineering Limited | Hounslow | A rating |
| Repair & Assure Ltd | Brighton | A rating |
| REPAIR HUB BELFAST LIMITED | Belfast | A rating |
| Repair My Phone (Oxford) Limited | Oxford | A rating |
| REPAIR N GO LTD | Bradford | A rating |
| REPAIR360 LIMITED T/a Repair360 | Gillingham | A rating |
| REPAIRITPRO LTD | Birmingham | A rating |
| Repark LTD | Leicester | A rating |
| Repeat Digital Ltd | Nottingham | A rating |
| Repeat Prescription Order Line Limited | Peterborough | A rating |
| REPERTOIRE CULINAIRE LIMITED | Croydon | A rating |
| Rephine Ltd | Stevenage | A rating |
| REPLANET LIMITED | Spilsby | A rating |
| Replayed Ltd | London | A rating |
| Repligen UK Ltd | Altrincham | A rating |
| Replimune Limited | Abingdon | A rating |
| Reply Limited | London | A rating |
| Repowering Limited | London | A rating |
| Represent Clothing Limited | Bolton | A rating |
| REPRESENTATIVE OFFICE OF JOINT STOCK COMPANY SOVEREIGN WEALTH FOND SAMRUK KAZYNA | LONDON | A rating |
| Reprieve | London | A rating |
| REPROCELL Europe Ltd | Glasgow | A rating |
| Reproductive Health Group | Warrington | A rating |
| Repsol Resources UK Limited | Aberdeen | A rating |
| Repsol Sinopec Resources UK Limited | Aberdeen | A rating |
| Repton Prep | Derby | A rating |
| Repton School | Derby | A rating |
| Republic Security Ltd | ILFORD | A rating |
| REPUBLIKA INTERACTIVE UK LTD | Milton Keynes | A rating |
| REPUBLIKS LTD | London | A rating |
| Reputation (RI) UK Limited | London | A rating |
| Reputation Leaders Ltd | East Grinstead | A rating |
| Reputation.Com (UK) Limited | Cheltenham | A rating |
| Request Services Ltd | Alton | A rating |
| REQUESTY LTD | London | A rating |
| Required Consulting Limited | Teddington | A rating |
| Requisite Needs Limited | Basingstoke | A rating |
| Requsyol Ltd | Park Royal | A rating |
| Rerrick Contract Services Ltd | KIRKCUDBRIGHT | A rating |
| RES Design Services Ltd | London | A rating |
| RES Energy Services Limited | Kings Langley | A rating |
| Res Environmental Ltd | Sheffield | A rating |
| Res Healthcare Ltd | Manchester | A rating |
| RES Ltd | Kings Langley | A rating |
| Rescale UK Limited | London | A rating |
| Rescue Haulage Limited | Coalville | A rating |
| RESCUE MY COMPANY LIMITED | Cheshunt | A rating |
| Research & Commerce Ltd | Manchester | A rating |
| Research Affiliates Global Advisors (Europe) Limited | London | A rating |
| Research and Commerce Ltd | Cheadle | A rating |
| Research By British Lithium Limited | Roche | A rating |
| Research Data Alliance Foundation | Didcot | A rating |
| RESEARCH DATA SCOTLAND | Edinburgh | A rating |
| Research Grid Ltd | Norwich | A rating |
| Research in Finance Ltd | London | A rating |
| RESEARCH OBJECTIVE CONSULTING INDUSTRIAL UK LIMITED | London | A rating |
| RESEARCH PROJECT LTD | London | A rating |
| Research Triangle Institute | Greater Manchester | A rating |
| Researchgate Limited | Richmond | A rating |
| Researchut Limited | London | A rating |
| Resect Limited | West Malling | A rating |
| RESERVE BANK OF AUSTRALIA | LONDON | A rating |
| Reserve Forces' and Cadets' Association (London Branch) | London | A rating |
| Reservoir Group Limited | Blackburn | A rating |
| Reservoir Media Management (UK) Ltd | London | A rating |
| Reshungha Foods Ltd | Nottingham | A rating |
| Resi Design Limited | London | A rating |
| Resicare Alliance Limited | London | A rating |
| Resicare Homes Limited | Hatfield | A rating |
| Reside Support Limited | Rawtenstall | A rating |
| Residence One (London) Ltd | Richmond | A rating |
| Resident Architects Limited | London | A rating |
| Resident Hotels Limited | London | A rating |
| Residential Care Providers Ltd | Pinner | A rating |