| Positron Technologies Ltd T/A TaxScouts | London | A rating |
| Posix Limited | London | A rating |
| Possability People | Brighton | A rating |
| POSSIBLE GREEN LTD | Twickenham | A rating |
| POSSIBLE STARS HEALTHCARE LTD | Hemel Hempstead | A rating |
| Post 'N' Packages Limited | Birmingham | A rating |
| Post Office Limited | London | A rating |
| Post office Todmorden | Todmorden | A rating |
| POST OP LTD | LONDON | A rating |
| POSTCODE LOTTERY LIMITED | EDINBURGH | A rating |
| Postdot Technologies UK Ltd | London | A rating |
| Poste Hotels Ltd | Stamford | A rating |
| Posterngate Surgery | Selby | A rating |
| POSTMASTER COURIERS LTD | Manchester | A rating |
| Posture Flex Ltd | Dewsbury | A rating |
| Pot@to Ltd | Coventry | A rating |
| POTATO ART STUDIO LIMITED | London | A rating |
| Potboiler Productions Limited | London | A rating |
| Potensial Ltd Trading as Potens | Birkenhead | A rating |
| Potente International LLP | Ongar | UK Expansion Worker: Provisional |
| POTENTIAL GROCERS LTD | Maidenhead | A rating |
| Potential Restaurant Ltd | London | A rating |
| POTENTIAL RETAIL LTD | Barcknell | A rating |
| Potential Sciences UK Ltd | Cambridge | A rating |
| POTENZA BUILDING MATERIALS LTD | London | A rating |
| Potenza Technology Ltd | Basildon | A rating |
| Poteris CIC | London | A rating |
| Pothoar Foods Limited t/a Desi Curry Palace | Glasgow | A rating |
| Potru Ltd | London | A rating |
| Pottage Restaurant Ltd | London | A rating |
| Potted Goose Ltd | Chipping Norton | A rating |
| Potter Clarkson IP Ltd. | Nottingham | A rating |
| POTTER'S HOUSE CHRISTIAN FELLOWSHIP CHURCH OF SOUTH LONDON | LONDON | A rating |
| Pottermore Ltd | London | A rating |
| POTTERNE CRICKET CLUB | DEVIZES | A rating |
| Potters Bar Cricket Club | Potters Bar | A rating |
| Potters Bar Food & Wine Limited | Potters Bar | A rating |
| Potters Forge Ltd | Laindon | A rating |
| POTTERS HEALTH CARE LTD | Grangemouth | A rating |
| Potters House Prayer Ministry | Glasgow | A rating |
| Potters Independent Living Ltd | Alford | A rating |
| Potters Leisure Limited | Great Yramouth | A rating |
| Pottery Cafe ltd | London | A rating |
| Potton Veterinary Limites T/A Potton Vets | Potton | A rating |
| Potty Pancakes Ltd | Potters Bar | A rating |
| Poulten Selfe & Lee Limited | Burnham on Crouch | A rating |
| Poulton Pop In Ltd T/A Poulton Pop In | Wallasey | A rating |
| Poultry Opco Limited | London | A rating |
| POUND BUSTER SUPERSTORE LTD | Manchester | A rating |
| POUND CITY (GRAYS) LIMITED | GRAYS | A rating |
| POUND EXPRESS PLUS LTD | Manchester | A rating |
| POUND FEVER (LIVERPOOL) LTD | LIVERPOOL | A rating |
| Pound Grow Limited | Nelson | A rating |
| POUND KINGDOM | Dagenham | A rating |
| Pound Metro Limited | Dagenham | A rating |
| Pound Trade Ltd | LONDON | A rating |
| POUND4U LTD | London | A rating |
| Poundbury Cancer Centre Ltd | Dorchester | A rating |
| Poundworld and Plus Limited | Brownhills | A rating |
| POUR-group LTD | Luton | A rating |
| Pourya Limited | Merseyside | A rating |
| Pova Care Ltd | Bradford | A rating |
| POVITEC LIMITED | London | A rating |
| Povoas Packaging Limited | Desborough | A rating |
| POW Food Limited | London | A rating |
| Powder White Lite Ltd | London | A rating |
| Powdertech Bicester Ltd. | Long Crendon | A rating |
| Powell (UK) Ltd | Bradford | A rating |
| Powell Gilbert LLP | London | A rating |
| POWELL SYSTEM ENGINEERING LIMITED | Sidcup, | A rating |
| Powell UK Ltd | Bradford | A rating |
| Powells Jewellery Limited | Chester | A rating |
| Power & Water | Swansea | A rating |
| Power and Energy International | Newbury | A rating |
| POWER BREAK UK LIMITED | LONDON | UK Expansion Worker: Provisional |
| Power British Limited | Uxbridge | A rating |
| Power by Britishvolt Plc | Blyth | A rating |
| Power Cable Services Limited | Rochester | A rating |
| Power CMS Technology Ltd | Richmond | A rating |
| Power Control and Automation Solutions Limited | Sheffield | A rating |
| Power E Solution UK Ltd | Liverpool | A rating |
| Power Electrics (Bristol) Ltd | Bristol | A rating |
| Power Electronic Measurements Limited | Nottingham | A rating |
| Power Electronics Corp. UK Limited | London | A rating |
| Power Enable Solutions Limited | Edinburgh | A rating |
| Power Engineering Consultants plc | Alderley Edge | A rating |
| Power Giant Domestic Appliances Ltd | Luton | A rating |
| Power Grid Projects Ltd | London | A rating |
| POWER INSIGHT LTD | Brentwood | A rating |
| Power Integrations UK Limited | Cambridge | A rating |
| POWER IT WORLD LTD | London | A rating |
| Power Jacks Limited | Westhill | A rating |
| Power Link Machine (UK) Co Ltd | Leeds | A rating |
| POWER LOUNGE ALDERSHOT LTD | Aldershot | A rating |
| Power Metal Resources PLC | London | A rating |
| Power On Connections Ltd | Coventry | A rating |
| Power Peads Physiotherapy LTD | Wolverhampton | A rating |
| Power Roll Ltd | County Durham | A rating |
| Power Solutions 18 Limited | Bognor Regis | A rating |
| Power System Consultants Limited T/A Smart G Power | London | A rating |
| Power Systems Consultants UK Limited | London | A rating |
| Power Towers Limited | Leicester | A rating |
| Power Transfer Ltd | London | A rating |
| Power Tree Ltd | Middlesex | A rating |
| Power2Motivate UK Limited | London | A rating |
| Power54 Generation Limited | London | A rating |
| POWERbreathe International Ltd | SOUTHAM | A rating |
| Powerful African Women of Ayrshire (PAWA) | Kilmarnock | A rating |
| Powerhouse Community Church | Dalry | A rating |
| Powerhub Solutions Limited | Stockport | A rating |
| Powering Services Limited | Brighton, | A rating |
| Powering up Britain Ltd t/a Britain Energy | London | A rating |
| POWERING UP BRITAIN LTD T/A BRITAIN ENERGY | Wanstead | A rating |
| POWERLINE ELECTRICAL CONTRACTORS LTD | SHEFFIELD | A rating |
| Powerline Traders Limited | Wembley | A rating |
| POWERNODE LTD | Manchester | A rating |
| Poweroak Energy UK Co., Ltd | Chesterfield | A rating |
| PowerPhotonic | Dalgety Bay | A rating |
| Powerpillar Ltd | London | A rating |
| Powerplay Brands Limited | Oldham | A rating |
| Powerplus Group (PPG) Ltd | Bingham | A rating |
| Powerstax Ltd | Wickford | A rating |
| Powersystems UK Ltd | Bristol | A rating |
| Powerteam Electrical Services (UK) Ltd | Belfast | A rating |
| Powertech Engineering Services Limited | Manchester | A rating |
| POWERTECH HEATING SOLUTIONS LTD | London | A rating |
| Powertek UK Ltd | Reading | A rating |
| Powertherm Contract Services Ltd | Sheffield | A rating |
| Powertica Commodities UK Ltd | Edinburgh | A rating |
| Powervamp Limited | Bedford | A rating |
| PowerX Technology Limited | London | A rating |
| Powerzone | London | A rating |
| PowisVets | Stourbridge | A rating |
| POWREADY TECHNOLOGIES LTD | London | A rating |
| Powster LTD | London | A rating |
| Powwow Holdings Limited | London | A rating |
| Powys Teaching Health Board | Brecon | A rating |
| Poyntell Limited | Cranbrook | A rating |
| Poynton Chiropractic Ltd | Poynton | A rating |
| Poynton Cuisine Ltd | Stockport | A rating |
| Poynton Dental Clinic | Poynton | A rating |
| Poynton Trading Ltd | Stockport | A rating |
| Poyry plc | Oxford | A rating |
| Pozitive Energy Ltd | London | A rating |
| Pozzoni Architecture Limited | Altrincham | A rating |
| PP & CO TRADING LTD | Middlesex | A rating |
| PP & I Limited T/A Ing Thai | Brentford | A rating |
| PP Asset Management Ltd | London | A rating |
| PP FUEL LTD | Poole | A rating |
| PP LAUNDRY LTD | EDGWARE | A rating |
| pp plumbing and heating ltd | forfar | A rating |
| PP Recruitment Holdings Ltd t/a Levin & Storm2,3,4 | London | A rating |
| PP Recruitment Ltd | Farnborough | A rating |
| PP Stores Limited t/as Market Hill Convenience Store-Premier | Barnsley | A rating |
| PP Tech Solutions Ltd | Bristol | A rating |
| PPA ENERGO S.R.O. | Hitchin | A rating |
| PPAV LIMITED | Uxbridge | A rating |
| PPC BROADBAND FIBER LTD | Marlesford | A rating |
| PPC HOSPITALITY (UK) COMPANY LIMITED | Romford | A rating |
| PPC Protect Limited T/A Lunio | Manchester | A rating |
| PPD Global Ltd | Cambridge | A rating |
| PPG Industries (UK) Ltd | Stowmarket | A rating |
| PPGUTTERS LTD | High Wycombe | A rating |
| PPHL Food Group Ltd | London | A rating |
| PPI Engineering Ltd | Norwich | A rating |
| PPK Group UK Ltd | Birmingham | A rating |
| PPL - Phonographic Performance Limited | London | A rating |
| PPL (Private Public Ltd) | London | A rating |
| PPL PRS Ltd | Leicester | A rating |
| PPL Training Ltd | York | A rating |
| PPM Creative | Worthing | A rating |
| PPM International (London), Ltd | London | A rating |
| PPM Projects Limited | Swanley | A rating |
| PPP UK LTD | KENT | A rating |
| PPRO Financial Ltd | London | A rating |
| PPRR LTD T/A GURKHA OVEN | SPALDING | A rating |
| PPRV LIMITED t/a Vanda Restaurant | Crawley | A rating |
| PPRV TRADING LIMITED | MINSTER RAMSGATE | A rating |
| PPS Metal Recycling Limited | Scunthorpe | A rating |
| PPS REAL ESTATE LTD | NOTTINGHAM | A rating |
| PPSGB Ltd | Milton Keynes | A rating |
| PPT Group | Halifax | A rating |
| PPVS (PPV Solutions Ltd) | Peterborough | A rating |
| PQ Silicas | Warrington | A rating |
| PQE GROUP LTD | London | A rating |
| PQS Tech Solutions Ltd | Leeds | A rating |
| PQShield Limited | OXFORD | A rating |
| PQube Limited | Letchworth Garden City | A rating |
| PR & EM CANDID COMMUNICATION (UK) LIMITED | Dartford | A rating |
| PR ACCOUNTING SOLUTIONS LIMITED | Ilford | A rating |
| PR BEAUTY SALON LIMITED | LONDON | A rating |
| PR EVENTS (NW) LTD | Blackburn | A rating |
| PR Food & Wine Ltd | Runcorn | A rating |
| PR Innovations Ltd | Cardiff | A rating |
| PR PROPERTY MAINTENANCE (UK) LTD | Birmingham | A rating |
| PR SAVERS LTD | Stockport | A rating |
| PR SUPERMARKET LTD T/A COSTCUTTER | PLYMOUTH | A rating |
| PR Techies LTD | Watford | A rating |
| PRA | Reading | A rating |
| PRA Group (UK) Ltd | Kilmarnock | A rating |