| Prioryview Accountancy Services Limited | Professional & scientific | 2016 |
| Product Prime Limited | Wholesale & retail | 2019 |
| Production PIN Limited | Information & communication | 2023 |
| Proedge Landscaping Ltd | Professional & scientific | 2026 |
| Professional Auto Care Ltd | Wholesale & retail | 2023 |
| Professional Tint Company Limited | Wholesale & retail | 2011 |
| Profix Fencing Ltd | Construction | 2026 |
| Properties by Keig Ltd | Real estate | 2026 |
| Property 1ST Contract Services Limited | Construction | 2014 |
| Property Investors NW Ltd | Real estate | 2026 |
| Prosource Supplies Ltd | Manufacturing | 2023 |
| Prospector Limited | Administrative & support | 2015 |
| PS Bride Babes Ltd | Wholesale & retail | 2024 |
| Ptjb GAS Limited | Administrative & support | 2018 |
| Pulsevantage Ltd | Administrative & support | 2026 |
| Punchers Properties Ltd | Real estate | 2025 |
| Pura Vida Holidays Ltd | Hospitality | 2023 |
| Purple-Patch Activity Centre Ltd | Health & social care | 2026 |
| Pvbr Limited | Wholesale & retail | 2025 |
| Pyramid Fashions Ltd | Wholesale & retail | 2014 |
| Q Group Technology Ltd | Professional & scientific | 2015 |
| Quality Assurance Associates Ltd | Professional & scientific | 2024 |
| Quality Care Essex Ltd | Administrative & support | 2018 |
| Quantum Odyssey Consulting Ltd | Professional & scientific | 2020 |
| Quantumfaze Limited | Professional & scientific | 2024 |
| Quayle Property Maintenance Ltd | Construction | 2015 |
| Quickulum Limited | Education | 2024 |
| Quince Tree Day Nursery Limited | Education | 2005 |
| R & C Investments Limited | Real estate | 2006 |
| R & E Consultancy Services Limited | Real estate | 2016 |
| R C S Installations Ltd | Construction | 2012 |
| R D H Associates Limited | Professional & scientific | 2003 |
| R Eco Solutions Ltd | Construction | 2025 |
| R Eleven Limited | Construction | 2019 |
| R Justice Limited | Real estate | 2002 |
| R&J Surface Solutions Ltd | Construction | 2026 |
| R. Burfoot Construction Limited | Construction | 2001 |
| R.H. Hayes Garages Limited | Professional & scientific | 1975 |
| R.L.R. Construction Limited | Construction | 1999 |
| R.T.C Carpentry Ltd | Construction | 2021 |
| RAF 98 Consultancy Ltd | Information & communication | 2024 |
| Ramsey Line Constructions Ltd | Construction | 2024 |
| Ramsey Research Limited | Information & communication | 2012 |
| Rana Muhammed Sarfraz Ltd | Wholesale & retail | 2025 |
| Rangemerge Property Management Limited | Real estate | 1991 |
| Rapid Relines Ltd | Construction | 2025 |
| Rational Choice Solutions Ltd | Professional & scientific | 2023 |
| RB Composites Ltd | Manufacturing | 2024 |
| RCK Consultancy Ltd | Information & communication | 2023 |
| RD Squared Limited | Information & communication | 2024 |
| RE Improvements Limited | Professional & scientific | 2025 |
| Ready to Compete Events Limited | Arts & recreation | 2026 |
| Real Ottoman Barbers Ltd | Other services | 2025 |
| Real Ottoman Property Management Ltd | Real estate | 2024 |
| Real Rich Bar and Grill Ltd | Hospitality | 2024 |
| Record Label Jeans Limited | Wholesale & retail | 2026 |
| Recovery +100 Ltd | Manufacturing | 2026 |
| Red Nova Solutions Ltd | Information & communication | 2016 |
| Red Sail Self Storage Ltd | Transport & logistics | 2022 |
| Redmayne Drive Management Company Limited | Households | 2001 |
| Redricks Precision Group Ltd | Arts & recreation | 2021 |
| Redroan Limited | Households | 1985 |
| Redwood Events Limited | Arts & recreation | 2007 |
| Reece Freeholdings Ltd | Households | 2023 |
| Refined Escapes Ltd | Administrative & support | 2023 |
| Refractory Consultancy Services Limited | Construction | 2015 |
| Regal Retreat and Spa Ltd | Hospitality | 2025 |
| Regency Building Ltd | Construction | 2023 |
| Regency Cottage Clacton Ltd | Hospitality | 2022 |
| Regent Stays Ltd | Hospitality | 2023 |
| Rejuvilize Ltd | Wholesale & retail | 2023 |
| Remcie Ltd | Hospitality | 2025 |
| Remton Limited | Hospitality | 2024 |
| Renchill Limited | Real estate | 2012 |
| Revolution Family Ltd | Transport & logistics | 2021 |
| RF Flues Ltd | Construction | 2015 |
| RG Eales Ltd | Real estate | 2020 |
| RGE Construction Ltd | Construction | 2019 |
| RGE Properties Ltd | Real estate | 2024 |
| Rhcpr Ltd | Construction | 2023 |
| Rhodda and Co LLP | | 2010 |
| Rhodda Ltd | Administrative & support | 2011 |
| Riacr 2014 Limited | Professional & scientific | 2014 |
| Riacr Limited | Real estate | 2003 |
| Riban Ltd | Professional & scientific | 2022 |
| Richwill Farm Limited | Education | 2007 |
| Richwill Limited | Other services | 2017 |
| Ricomm Limited | Manufacturing | 2006 |
| Ring My Dog Limited | Information & communication | 2020 |
| Rita Danielle Ltd | Health & social care | 2019 |
| Rjays Timber Limited | Manufacturing | 2006 |
| RJM Reinforcement Ltd | Construction | 2026 |
| RLH (Essex) Limited | Administrative & support | 2016 |
| RMH Cleaning Services Ltd | Administrative & support | 2020 |
| RMH Housing Ltd | Real estate | 2023 |
| Robert Smart Ltd | Information & communication | 2023 |
| Robinmate Limited | Real estate | 1993 |
| Robs-World Limited | Hospitality | 2002 |
| Rock Steady Boxing Tendring CIC | Public administration | 2026 |
| Roman Express 1 Ltd | Wholesale & retail | 2024 |