| Precision Spray Solutions Ltd | Bury St. Edmunds | 2025 |
| Precisionagri Drones Ltd | Bury St. Edmunds | 2024 |
| Preece Properties Ltd | Eastleigh | 2020 |
| Preece's Garden & Tree Care Limited | Carmarthen | 2024 |
| Prees Heath Forest Nurseries Limited | Whitchurch | 2024 |
| Prees Storage Ltd | Whitchurch | 2003 |
| Premier Angling Club Limited | Wirral | 2012 |
| Premier Deer Management Ltd | Tain | 2024 |
| Premier Equestrian Services Ltd | Nottingham | 2024 |
| Premier Farm Marketing Ltd | Shrewsbury | 2010 |
| Premier Grow Limited | Leicester | 2010 |
| Premier K9 Limited | Grimsby | 2018 |
| Premier Kitty Hotel Ltd | Exeter | 2025 |
| Premier Leads Dog Walking Limited | Leeds | 2025 |
| Premier Livestock Auctions Limited | York | 1931 |
| Premier Logs Wirral Ltd | Wallasey | 2023 |
| Premier Paws Ltd | Londonderry | 2025 |
| Premier Pet Services Ltd | London | 2025 |
| Premier Plant Producers Limited | Keyingham | 1976 |
| Premier Plants UK Limited | Chelmsford | 2002 |
| Premier Ploughman Ltd | Swansea | 2025 |
| Premier Poultry Limited | Dumfries | 2021 |
| Premier Produce (UK) Ltd | Birmingham | 2011 |
| Premier Professional Lawncare Limited | Runcorn | 2019 |
| Premier Seed Services Ltd. | Saxmundham | 2002 |
| Premier Shrubs Limited | Chichester | 2007 |
| Premier Timber Harvesting Limited | Ripon | 2016 |
| Premier Tree Care & Conservation Limited | Laleham Village | 2016 |
| Premier Tree Care Limited | Stowmarket | 2014 |
| Premier Tree Services Limited | Peterlee | 2004 |
| Premier Wildlife Services Limited | Stockbridge | 2017 |
| Premier Woodlands Limited | Magherafelt | 1992 |
| Premiere Dressage Equestrian Ltd | Saffron Walden | 2024 |
| Premiership Designs and Services Ltd | Milton Keynes | 2023 |
| Premiership Lawncare Domestic Limited | Milton Keynes | 2017 |
| Premium Christmas Trees Limited | Chorley | 2010 |
| Premium Feeds Limited | Romsey | 2001 |
| Premium Plants Limited | Canterbury | 2013 |
| Premium Stallions Ltd | Craigavon | 2023 |
| Premium Straw Services Limited | Barnsley | 2010 |
| Premium-Equine Limited | Banbury | 2025 |
| Pren TEG Limited | Swansea | 2019 |
| Prenderguest Farm Limited | Eyemouth | 2011 |
| Prenn Landscapes Ltd | Truro | 2024 |
| Prenplants Sussex Limited | Haywards Heath | 2014 |
| Prentice Agriculture Ltd | Berwick-Upon-Tweed | 2015 |
| Prescombe Sporting Limited | Poundbury | 2003 |
| Presentias Limited | Haverfordwest | 2003 |
| Preservation Tree Ltd | Stone | 2026 |
| Press Manor Fishing Lakes Ltd | Chesterfield | 2020 |
| Prestglade Limited | London | 2005 |
| Prestige 365 Limited | Maidstone | 2023 |
| Prestige Colubrids Ltd | Bolton | 2024 |
| Prestige Equestrian Training Limited | Gloucestershire | 2025 |
| Prestige Equine Search Ltd | Hemel Hempstead | 2022 |
| Prestige Grounds Limited | Chippenham | 2015 |
| Prestige Paws Dog Grooming & Styling Lounge of Bents Ltd | Manchester | 2024 |
| Prestige Pooches Ltd | Wingate | 2024 |
| Prestige Pups Limited | Neath | 2020 |
| Preston Coombe Farms Limited | Newton Abbot | 2012 |
| Preston Farms Limited | Buckingham | 1964 |
| Preston Feedstocks Limited | Leicester | 2019 |
| Preston Lodge Farm Ltd | Newton Aycliffe | 2022 |
| Prestons K9 Fertility Services Limited | Preston | 2022 |
| Prestons Trading Limited | Sleaford | 2006 |
| Prestwood Farm Feeds Limited | Stourbridge | 2016 |
| Preswill Ltd | Taunton | 2014 |
| Pretoria Energy Company (Arable) Limited | Chittering | 2015 |
| Pretty Plants Limited | Cheam | 2023 |
| Pretty Ragdolls Ltd | London | 2026 |
| Prettycur Farms Limited | Tayside | 2005 |
| Prevail Fishing Company Ltd | Lerwick | 2015 |
| Price & Co Farming Limited | Hengoed | 2002 |
| Price and Sons Holdings Ltd | Builth Wells | 2022 |
| Price Derryhale Ltd | Portadown | 2017 |
| Price Farming Limited | Hereford | 2010 |
| Price Farms Limited | Cwmbran | 2007 |
| Price Timber & Haulage Ltd | Shrewsbury | 2022 |
| Price Tree Surgery Ltd | Mountain Ash | 2023 |
| Priceless Enterprises Ltd | Croydon | 2022 |
| Priceless Minerals Limited | Stafford | 2009 |
| Prickly Edge Hedgehog Rescue C.I.C. | Leeds | 2022 |
| Prickly Pear Market Garden Ltd | Somerset | 2023 |
| Pride & Joy Fishing Ltd | Scarborough | 2019 |
| Prideaux (Langport) Limited | Somerset | 1936 |
| Pridepath Computing Limited | Berwick-Upon-Tweed | 1995 |
| Pridgeon Farms Limited | Skegness | 1995 |
| Pridham Dairies Ltd | Launceston | 2023 |
| Priest END Agriculture Limited | Aylesbury | 2014 |
| Priesthawes Farms Limited | Polegate | 1979 |
| Priesthill Holdings Limited | Alness | 2023 |
| Priestland Poultry Ltd | Bushmills | 2020 |
| Priestley Fold Farm Limited | Rossendale | 2018 |
| Prima Materia Ltd | St. Albans | 2017 |
| Prima Paddocks Ltd | Reading | 2021 |
| Primary Tree Care Ltd | Poole | 2019 |
| Primate Group Limited | Sittingbourne | 2023 |
| Primavera Meadows Limited | Louth | 2009 |
| Prime Agriculture Investments Limited | St. Albans | 2021 |
| Prime Baits Limited | Exeter | 2023 |