| pControl UK Limited | London | A rating |
| PCS Wireless UK Limited | Bracknell | A rating |
| PD & MS Energy (Aberdeen) Limited | Aberdeen | A rating |
| PDC Investment Management Ltd | London | A rating |
| PDS Fashions Limited | London | A rating |
| PDT Partners UK I Ltd | London | A rating |
| PE Limited | Guildford | A rating |
| Peak Rock Capital Europe LLP | London | A rating |
| Peak Scientific Instruments Ltd | Inchinnan | A rating |
| Pearl Global (HK) Limited | Richmond | A rating |
| Pearson plc | London | A rating |
| Peermusic (UK) Limited | Richmond | A rating |
| Pegasystems Limited | Reading | A rating |
| PEI Media Limited | London | A rating |
| Peikko UK Ltd | Newton Aycliffe | A rating |
| PEILI VISION UK LIMITED | Leeds | A rating |
| Pell Frischmann Consultants Ltd | London | A rating |
| Peloton Enterprises UK Ltd | London | A rating |
| Peloton Interactive UK Limited | London | A rating |
| PELSIS LIMITED | KNARESBOROUGH | A rating |
| Pemberton Asset Management Services (UK) Limited | London | A rating |
| Pembroke Real Estate LLC | London | A rating |
| Pemsa UK Limited | Leeds | A rating |
| Pendennis Shipyard Limited | Falmouth | A rating |
| Pendo.io.UK Ltd | London | A rating |
| Peninsula London Hotel Management Services Limited | London | A rating |
| PennEngineering Fastening Technologies (Europe) Ltd | Burnley | A rating |
| Penningtons Manches Cooper LLP | London | A rating |
| Penspen Limited | London | A rating |
| Penta Group Europe Limited | London | A rating |
| Pentel (Stationery) Ltd | Swindon | A rating |
| Pentland Brands Limited | London | A rating |
| Pentland Brands plc | London | A rating |
| Penumbra Asset Finance (UK) Limited | London | A rating |
| People Group of Companies Ltd | London | A rating |
| People Places Lives Limited | Wigan | A rating |
| Peoplefluent Ltd | London | A rating |
| Pepper (UK) Limited | London | A rating |
| Pepper Money (PMB) Limited | Cardiff | A rating |
| Pepperdine University | London | A rating |
| PepsiCo International Ltd | Reading | A rating |
| Perceptive Informatics UK Ltd | Nottingham | A rating |
| Perceptual Robotics Limited | BRISTOL | A rating |
| PERCEPTYX UK LTD | Cheltenham | A rating |
| Peregrine Technologies UK Ltd | London | A rating |
| Perella Weinberg UK Limited | London | A rating |
| Perenco Holdings | London | A rating |
| Perenti UK Ltd | London | A rating |
| Perez-Llorca UK LLP | London | A rating |
| Perfetti Van Melle - PVM UK | Berkshire | A rating |
| Perficient UK Limited | Oxford | A rating |
| Perforce Software UK Ltd | Bracknell | A rating |
| Perform Content Services Limited | London | A rating |
| Performance Management Partners Limited | London | A rating |
| Performanta Limited | Maidenhead | A rating |
| PERI Limited | Rugby | A rating |
| Peridot Global Holdings Limited | London | A rating |
| PERIGUS ENERGY UK LIMITED | London | A rating |
| Periodic Labs UK, Ltd | London | A rating |
| Peritus International Ltd | Woking | A rating |
| PERK UK LTD | London | A rating |
| PerkinElmer AES (UK) Limited | High Wycombe | A rating |
| Perkins and Will UK Limited | London | A rating |
| Permasteelisa UK Ltd | London | A rating |
| Permira Advisers (London) Limited | London | A rating |
| Pernod Ricard UK Ltd | London | A rating |
| Perplexity AI Ltd | London | A rating |
| Persado UK Ltd | London | A rating |
| PERSEFONI LTD | LONDON | A rating |
| Persia International Bank Plc | London | A rating |
| Persistent Systems UK Limited | London | A rating |
| Persona Identities UK Ltd | London | A rating |
| Personetics Technologies (UK) Ltd | London | A rating |
| Personio Group SE (UK Branch) | London | A rating |
| PERSUIT UK Ltd | London | A rating |
| Pertamina International Shipping Europe | London | A rating |
| PESCA RICH Europe Limited | Twickenham | A rating |
| PETCO TRADING (UK) LIMITED | London | A rating |
| Peter Madsen Marine Contractors UK ltd. | Wakefield | A rating |
| Peterson (United Kingdom) Limited | London | A rating |
| Petit Forestier UK Limited | Dordon | A rating |
| Petraco Brokerage SA (UK Branch) | London | A rating |
| Petredec (Europe) Limited | London | A rating |
| Petrochemical Commercial Company (UK) Ltd | London | A rating |
| Petrochina International (London) Co., Limited | London | A rating |
| Petrofac Facilities Management Ltd | Aberdeen | A rating |
| Petrogas North Sea Limited | Aberdeen | A rating |
| Petrolink Services Limited (UK) | Aberdeen | A rating |
| Petroplan Europe Limited | London | A rating |
| Peugeot Citroen Automobiles UK Limited | Coventry | A rating |
| Peugeot Invest UK Limited | London | A rating |
| Pexapark UK Ltd | Reading | A rating |
| Pfeifer Drako Limited | Crewe | A rating |
| Pfeifer Timber UK Ltd | Gainsborough | A rating |
| PFG-UK LTD | London | A rating |
| Pfizer Limited | Tadworth | A rating |
| Pfizer Ltd ( Registered Office) | Sandwich | A rating |
| Pfleiderer UK Limited | Macclesfield | A rating |
| PFS Global Services UK Limited | Basingstoke | A rating |
| PFU (EMEA) Limited | Uxbridge | A rating |
| PGA Global Services LLC - UK Branch | London | A rating |
| PGA TOUR International UK | London | A rating |
| PGIM European Services Limited | London | A rating |
| PGIM FINANCIAL LIMITED | LONDON | A rating |
| PGIM Fund Management Limited | LONDON | A rating |
| PGIM Limited | London | A rating |
| PGIM Private Capital Limited | London | A rating |
| PGS Exploration (UK) Ltd | Weybridge | A rating |
| PH Sport UK Limited | Cardiff | A rating |
| Phaidon Press Limited | London | A rating |
| Phalanx Consultancy Limited | London | A rating |
| Pharmaron UK Limited | Hoddesdon | A rating |
| Pharo Management (UK) LLP | London | A rating |
| PHBS-UK | Oxford | A rating |
| PHIBOR ENTREPRISES | LONDON | A rating |
| Philip Morris Limited | London | A rating |
| PHILIPPINE NATIONAL BANK (EUROPE) PLC | London | A rating |
| Philips Electronics UK Ltd | Farnborough | A rating |
| Phillips 66 Limited | London | A rating |
| Phillips Auctioneers Limited | London | A rating |
| PHINIA Delphi UK Ltd | Gillingham | A rating |
| PHINIA DELPHI UK LTD | Warwick | A rating |
| Phocas UK Limited | Coventry | A rating |
| Phoenix Chinese News and Entertainment Ltd | Richmond | A rating |
| Phoenix Group Management Services Limited | Birmingham | A rating |
| PhotoBox Ltd | London | A rating |
| Photon Interactive UK Limited | London | A rating |
| Phytoform Labs Ltd | Harpenden | A rating |
| Pi | London | A rating |
| Piaggio Limited | Orpington | A rating |
| Picama Group Limited | London | A rating |
| Picasso Labs Inc | London | A rating |
| Pico Global Ltd. | Cheshire | A rating |
| Pico In-Creative (UK) Limited | London | A rating |
| PICO London Ltd | London | A rating |
| Pico Technology | Eaton Socon | A rating |
| PICSART UK LIMITED | London | A rating |
| Pictet Asset Management Ltd | London | A rating |
| Pierce Washington Ltd | London | A rating |
| PIERRE FABRE LIMITED | London | A rating |
| PIERRE FREY UK | LONDON | A rating |
| Pigment Global Limited | Cheshire | A rating |
| Pilgrim's Food Masters UK Limited | Uxbridge | A rating |
| Pilgrim's Pride Ltd | Uxbridge | A rating |
| Pilkington Group Limited | Nr. Ormskirk | A rating |
| PillarFour Securities LLP | London | A rating |
| Pillsbury Winthrop Shaw Pittman | London | A rating |
| Pilz Automation Technology LP | CORBY | A rating |
| PIMCO Europe Ltd | London | A rating |
| PIMCO Prime Real Estate GmbH | London | A rating |
| PIMSA UK Limited | Nuneaton | A rating |
| Pindrop Security UK Limited | Liverpool | A rating |
| PineBridge Investments Europe Limited | London | A rating |
| Ping Identity Limited | Bristol | A rating |
| Ping Petroleum UK PLC | Aberdeen | A rating |
| PingPong Digital Ltd. | Birmingham | A rating |
| Pinnacle Investment Management (UK) Limited | London | A rating |
| Pinnacle Reliability UK Ltd | London | A rating |
| Pinsent Masons LLP | Birmingham | A rating |
| Pinterest UK | London | A rating |
| Piolax Limited | Accrington | A rating |
| Pipe Manufacturing Solutions Ltd. | Cardiff | A rating |
| Pipe Masters UK Limited | London | A rating |
| Pipe Technologies UK Ltd | London | A rating |
| Pipedrive UK Ltd | London | A rating |
| Piper Sandler Ltd | London | A rating |
| Piramal Healthcare UK Limited | Morpeth | A rating |
| Pirelli UK Tyres Limited | Staffordshire | A rating |
| Pirelli Uk Tyres Ltd | Burton-on-Trent | A rating |
| Pitayanukul & Co Ltd t/a P&Co Chartered Accountants | London | A rating |
| Pitch Black Creative Production UK Ltd (t/a FOLKS) | London | A rating |
| Pitney Bowes Limited | Harlow | A rating |
| Pixelogic Media UK ltd | London | A rating |
| PIXXLES LTD | LONDON | A rating |
| Pizza Hut Europe Limited | London | A rating |
| PJT Partners UK Limited | London | A rating |
| PKF Littlejohn LLP | London | A rating |
| Pladis (UK) Limited | London | A rating |
| Plaid Financial Ltd | London | A rating |
| PLAION Ltd | Reading | A rating |
| Plan Limited | Woking | A rating |
| Plan.nr Limited | London | A rating |
| Plane Business Limited | London | A rating |
| Planet Holding Ltd | London | A rating |
| Planet Payment UK Limited | Redhill | A rating |
| Planful UK Limited | London | A rating |
| Planhat Ltd | London | A rating |
| Planit Software Limited | Reading | A rating |
| Planit Software Testing | Reading | A rating |
| Plant Lipids UK Limited | Corby | A rating |
| Plasmidsaurus Ltd | London | A rating |
| Plastek UK Ltd | Mansfield | A rating |
| Plastipak UK Ltd | Wrexham | A rating |
| Plata Capital Limited t/a Sokin | London | A rating |
| Platinum Equity Advisors International (UK) Limited | London | A rating |
| PlayersLounge Esports Newco Ltd | Manchester | A rating |
| Playtika UK - House of Fun Limited | London | A rating |
| Plaza Premium Lounge (UK) Ltd | West Drayton | A rating |
| Pleo Technologies Ltd | Farringdon | A rating |
| Plexus Corp (UK) Ltd | Kelso | A rating |