| PAZ Nuts Ltd | Wholesale & retail | 2020 |
| PCS (National) Ltd | Administrative & support | 2020 |
| Pebbles & Paintpots Limited | Administrative & support | 2017 |
| Pedagogy Consultancy Ltd | Information & communication | 2022 |
| Penelope Estates Limited | Professional & scientific | 2014 |
| Penny & Masters Limited | Real estate | 2018 |
| Pennyhill Timber Ltd | Wholesale & retail | 2010 |
| Pentagon Facilities Holdings Limited | Financial services | 2002 |
| Pentagon Facilities Limited | Professional & scientific | 1999 |
| PER Iocum Estates Limited | Construction | 2016 |
| Perfac Limited | Arts & recreation | 2024 |
| Peri Social’S & Partner’S Limited | Arts & recreation | 2025 |
| Periscope Films Ltd | Information & communication | 2008 |
| Petal Rebellion Limited | Wholesale & retail | 2024 |
| Peterlee Leisure Limited | Hospitality | 2000 |
| Petrus Developments Ltd | Construction | 2018 |
| Petrus Properties Limited | Administrative & support | 2000 |
| Philip & Finch (UK) Ltd | Professional & scientific | 2011 |
| Phoenix Financial Consultancy (UK) Limited | Financial services | 2013 |
| Phonetech South Ltd | Wholesale & retail | 2025 |
| Pierrot Studio Ltd | Manufacturing | 2023 |
| Pilfold (Management Consultants) Limited | Professional & scientific | 1990 |
| Pink Monkey Stag and HEN Ltd | Administrative & support | 2013 |
| Piping Hot Solutions Ltd | Construction | 2012 |
| Pippy's Ltd | Manufacturing | 2021 |
| Pixel Properties Limited | Real estate | 1996 |
| Pixel Publications Limited | Extraterritorial | 2005 |
| PJM Property Refurbishments Limited | Real estate | 2011 |
| PJR Surveying Ltd | Professional & scientific | 2022 |
| PJX Retail Ltd | Wholesale & retail | 2021 |
| PK Videozone Ltd | Information & communication | 2014 |
| Placketts Corner Residents Company Limited | Households | 2013 |
| Planet Bookit Ltd | Administrative & support | 2025 |
| Planning Peaks Consulting Ltd | Professional & scientific | 2019 |
| Plate Advisor Ltd | Information & communication | 2024 |
| PLI Property Limited | Real estate | 2022 |
| Plough and Harrow ( Cuckmere Valley) Ltd | Hospitality | 2015 |
| Podiatry & Wellness Clinic Limited | Health & social care | 2019 |
| Polegate and District Model Engineering Club | Arts & recreation | 1999 |
| Polegate Cafe Limited | Hospitality | 2023 |
| Polegate Car Sales Ltd | Wholesale & retail | 2025 |
| Polegate Community Library CIC | Arts & recreation | 2022 |
| Polegate Electricals Ltd | Construction | 2019 |
| Polegate Equestrian Centre Ltd | Arts & recreation | 2016 |
| Polegate MOT Centre Ltd | Wholesale & retail | 2015 |
| Polegate Property Holdings Ltd | Real estate | 2026 |
| Polegate WAR Memorial Recreational Ground C.I.C. | Administrative & support | 2018 |
| Polite Culture Limited | Wholesale & retail | 2024 |
| Pooky Knightsmith Associates Ltd | Education | 2011 |
| Poppetts Pre-School PPS Ltd | Education | 2025 |
| Poppyseed Bakery Ltd | Wholesale & retail | 2022 |
| Porters Associates Ltd | Professional & scientific | 2018 |
| Povall Worthington Limited | Professional & scientific | 2000 |
| Powermend Ltd | Manufacturing | 2018 |
| PPL 28 Woodville Road Freehold Ltd | Households | 2019 |
| Premier Electrical & Facilities Management Ltd | Construction | 2023 |
| Premier Plumbing and Heating Services Ltd | Construction | 2018 |
| Prep Hard, Cater Easy Limited | Administrative & support | 2017 |
| Prex Rimor Limited | Professional & scientific | 2012 |
| Priesthawes Farms Limited | Agriculture & fishing | 1979 |
| Prim & Proper Home Services Limited | Construction | 2023 |
| Primal INK Ltd | Information & communication | 2023 |
| Prime Property Lets Ltd | Real estate | 2017 |
| Priory Heights, Eastbourne Residents Association Limited | Households | 1970 |
| Pristine Valeting Solutions Ltd | Wholesale & retail | 2020 |
| Pro Build HI Ltd | Construction | 2016 |
| Pro Build Sussex Ltd | Construction | 2026 |
| Pro SEC G S Limited | Administrative & support | 2001 |
| Professional Technology Solutions Limited | Administrative & support | 2014 |
| Promaster Marketing Ltd | Professional & scientific | 2017 |
| Propatea Limited | Real estate | 2025 |
| Property at Homes Ltd | Real estate | 2025 |
| Protea Financial Services (South East) Limited | Financial services | 2015 |
| Protouchbeauty.Academy Ltd | Education | 2024 |
| Pullin Ltd | Construction | 2016 |
| Pure Smile Services Ltd | Health & social care | 2026 |
| Purge Cleaning Service Limited | Administrative & support | 2025 |
| Quality Student Accommodation Ltd | Real estate | 2022 |
| Quarrenden Advisers Limited | Professional & scientific | 2024 |
| Quesadilla Ltd | Hospitality | 2023 |
| Quickbeam Solutions Limited | Information & communication | 2024 |
| Quinton Poulton Management Limited | Professional & scientific | 1997 |
| R and JAY Property Ltd | Real estate | 2023 |
| R J Cortel Limited | Information & communication | 2001 |
| R&D Goatley Property Ltd | Other services | 2026 |
| R3FORMGROUP Limited | Construction | 2022 |
| R3K Investments Limited | Real estate | 2021 |
| Race Paddock Limited | Wholesale & retail | 2023 |
| Racquet Studios Ltd | Information & communication | 2021 |
| Radcapital UK Ltd | Health & social care | 2011 |
| Ravair Solar Ltd | Wholesale & retail | 2023 |
| RAW Food Eastbourne Ltd | Wholesale & retail | 2026 |
| Re&C House Ltd | Real estate | 2014 |
| Re-Roofs Direct Ltd | Construction | 2024 |
| Real Atlantic LLP | | 2014 |
| Red Firecracker Ltd | Professional & scientific | 2015 |
| Red Sock Records Limited | Extraterritorial | 2009 |
| Redcroft Way (Residents Association) Limited | Households | 2011 |
| Redgate Technology Ltd | Manufacturing | 2007 |
| Reed Mackenzie Ltd | Hospitality | 2022 |