| Premier Vehicle Trim Repairs Limited | Other services | 2002 |
| Prepadoo Ltd | Education | 2024 |
| Prestige Airport Cars Ltd | Transport & logistics | 2015 |
| Prestigious Developments Ltd | Construction | 2024 |
| Primary Access & Research Ltd | Professional & scientific | 2019 |
| Primary Health NET Limited | Professional & scientific | 1991 |
| Prime UK Contracts Limited | Construction | 2024 |
| Print 2 Page Limited | Administrative & support | 2006 |
| Printfromyoursofa.Co.Uk Ltd | Professional & scientific | 2018 |
| Proactive Drainage Ltd | Administrative & support | 2025 |
| Proaris Ltd | Professional & scientific | 1998 |
| Procida Ltd | Professional & scientific | 2013 |
| Professional Office Systems Limited | Professional & scientific | 1989 |
| Profiles E. a. Ltd | Real estate | 2011 |
| Project Environmental Services Limited | Construction | 1987 |
| Project Orange Limited | Professional & scientific | 1997 |
| Prom Designs Ltd | Construction | 2004 |
| Property Planning and Marketing Consultants Limited | Professional & scientific | 2007 |
| Property, Facilities and Construction Limited | Construction | 2013 |
| Propiteer Abbots Gate Management Company Limited | Real estate | 2024 |
| Prosynth Limited | Manufacturing | 1998 |
| Protecnica Solutions Limited | Wholesale & retail | 2002 |
| PTB Electrical Services Ltd | Construction | 2022 |
| Pulse Visual Ltd | Information & communication | 2017 |
| Pure Elements Hair Ltd | Other services | 2025 |
| Pure Finish Cleaning Ltd | Administrative & support | 2026 |
| Purnell Capital Ltd | Wholesale & retail | 2022 |
| Purple Key Properties Ltd | Real estate | 2022 |
| Puttock Brown Financial Services Limited | Professional & scientific | 2007 |
| Puttock Brown Limited | Professional & scientific | 2012 |
| PW Technical Services Limited | Professional & scientific | 2018 |
| Q63 Solutions Limited | Construction | 2023 |
| Queens Park (Billericay) Management Company Limited | Households | 1985 |
| Quvee Ltd. | Information & communication | 2014 |
| Qyxu Ltd | Real estate | 2022 |
| R & a Morton Farms Limited | Agriculture & fishing | 2010 |
| R & M Ponds Services Limited | Administrative & support | 2020 |
| R Butcher Surfacing Limited | Administrative & support | 2010 |
| R C Engineers and Architecture Limited | Professional & scientific | 2007 |
| R F Stratton (Construction) Ltd | Construction | 2023 |
| R H Management Anglia Limited | Professional & scientific | 2011 |
| R H Sporting Limited | Agriculture & fishing | 2026 |
| R Partridge & Co Ltd | Agriculture & fishing | 2024 |
| R&H Farming Ltd | Agriculture & fishing | 2023 |
| R'S Autos (MOT) Limited | Wholesale & retail | 2004 |
| R'S Autos Limited | Wholesale & retail | 2001 |
| R. J. Huint | | 1987 |
| R.A. Webb Limited | Wholesale & retail | 1982 |
| R.E.M. Publishing Limited | Information & communication | 1999 |
| R.M. Thompson Limited | Construction | 2013 |
| Radius Design Limited | Arts & recreation | 2017 |
| Rail Professional Limited | Information & communication | 2012 |
| Rain-E-Days Ltd | Manufacturing | 2019 |
| RAJ Saab Ltd | Hospitality | 2025 |
| Randbadams Limited | Real estate | 2019 |
| Ranked Ltd | Professional & scientific | 2026 |
| Rapid Ruling LLP | | 2012 |
| Rattlebox Film Ltd | Information & communication | 2025 |
| RAY Byford Limited | Real estate | 2011 |
| Razza Roller Disco Limited | Arts & recreation | 2012 |
| RB Response Ltd | Construction | 2017 |
| RD Jones (Management Consultants) Limited | Financial services | 2002 |
| RD Teams Limited | Information & communication | 2023 |
| RDJ Lewis Building Limited | Construction | 2015 |
| Rebecca Tozer Creative Ltd | Professional & scientific | 2019 |
| Rebel Outdoor Ltd | Professional & scientific | 2003 |
| Rebel Training Group Ltd | Education | 2024 |
| Recipe Production Ltd | Information & communication | 2022 |
| Recommended Plumber Limited | Construction | 2010 |
| Record and Repurpose Ltd | Information & communication | 2023 |
| Recruiters-Pay- Hub Ltd | Administrative & support | 2025 |
| Red & Blue Optics Ltd | Wholesale & retail | 2022 |
| Red Brick Yellow Brick Ltd | Wholesale & retail | 2025 |
| Red Earth X Limited | Construction | 2025 |
| Red FOX Advisory Limited | Professional & scientific | 2020 |
| Red Kite HR Services Limited | Administrative & support | 2022 |
| Red Side UP Limited | Manufacturing | 2011 |
| Redmayne Engineering Limited | Manufacturing | 1962 |
| Reds Hospitality Ltd | Hospitality | 2026 |
| Reeds Rentals 28 Ltd | Real estate | 2025 |
| Reevolution Limited | Construction | 2025 |
| Regal Meadows Management Company Limited | Households | 2020 |
| Rehost Limited | Information & communication | 2021 |
| Relentless Duck Limited | Professional & scientific | 2016 |
| Relic Interiors Limited | Wholesale & retail | 2022 |
| Renascens Services Ltd | Administrative & support | 2019 |
| Rendall & Wright Ltd | Professional & scientific | 2012 |
| Rendezvous Holidays Limited | Professional & scientific | 2015 |
| Renpas Ltd | Construction | 2023 |
| Respondrly Ltd | Information & communication | 2025 |
| Revyva Labs Ltd | Professional & scientific | 2026 |
| Reynards Court Management Company Limited | Real estate | 2000 |
| RH80 Concert Limited | Information & communication | 2023 |
| Ricehomes Ltd | Construction | 2026 |
| Richard Self Consultancy Limited | Financial services | 2024 |
| Richardson Haulage Group Limited | Financial services | 2011 |
| Richardson Haulage Limited | Transport & logistics | 2005 |
| Richman (U.K.) Limited | Manufacturing | 1981 |
| Riddleston Farming Ltd | Agriculture & fishing | 2016 |
| Right to Dream UK Partners Limited | Arts & recreation | 2023 |