| THE Peterborough School Limited | Education | 1974 |
| THE Peterborough Tiling Company Ltd | Construction | 2026 |
| THE Pheonix Ltd | Real estate | 2023 |
| THE Piggeries @ Woofers Welcome Yorkshire Limited | Administrative & support | 2020 |
| THE Pinelli Group Limited | Real estate | 2016 |
| THE Pizza House Peterborough Limited | Hospitality | 2018 |
| THE Plumbing Centre Ltd | Wholesale & retail | 2004 |
| THE PMI Partnership Limited | Arts & recreation | 2002 |
| THE Poplars Business Consultants Limited | Professional & scientific | 2012 |
| THE Porcelain Store Ltd | Wholesale & retail | 2021 |
| THE Priestgate Dental LAB Ltd | Health & social care | 2021 |
| THE Pro Accountants (Private) Limited | Professional & scientific | 2022 |
| THE Produce LAB Ltd | Information & communication | 2025 |
| THE Profits Wizard LLP | | 2017 |
| THE Property Finance Academy Ltd | Education | 2018 |
| THE Property Finance Collective Ltd | Administrative & support | 2020 |
| THE Property Finance Group Limited | Administrative & support | 2026 |
| THE Property Finance GUY Ltd | Administrative & support | 2018 |
| THE Property Minder Ltd | Real estate | 2024 |
| THE Pump MAN Limited | Extraterritorial | 2013 |
| THE Purple Blackboard Ltd | Education | 2022 |
| THE Q Partnership Limited | Administrative & support | 1996 |
| THE Quarr Group Holdings Limited | Financial services | 2017 |
| THE Quarr Group Limited | Financial services | 1992 |
| THE Rack Sneakers Ltd | Wholesale & retail | 2023 |
| THE RB7 Arts Centre CIC | Arts & recreation | 2022 |
| THE Real Property Buddies Limited | Real estate | 2021 |
| THE Recruitment Network Ltd | Professional & scientific | 2015 |
| THE REG Masters TRM Peterborough Ltd. | Manufacturing | 2022 |
| THE Rehman Project Ltd | Education | 2024 |
| THE Ridge Master Ltd | Construction | 2023 |
| THE Rinkler Limited | Information & communication | 2023 |
| THE Rolling Theatre Ltd | Information & communication | 2021 |
| THE Roof Repair Company North Ltd | Construction | 2026 |
| THE Rounded House Limited | Wholesale & retail | 2013 |
| THE Royal National Institute for Deaf People | Professional & scientific | 1948 |
| THE Ruby Pet Services Limited | Other services | 2020 |
| THE Saddle Bank Ltd | Wholesale & retail | 2019 |
| THE Saxons Residents Management Company Limited | Households | 2020 |
| THE Send UK Logistics Ltd | Transport & logistics | 2025 |
| THE Sessions House 1842 Limited | Real estate | 2026 |
| THE Shaman in Stilettos Limited | Information & communication | 2011 |
| THE Shari Lifestyle Ltd | Education | 2025 |
| THE Shed - Smoke House Limited | Hospitality | 2025 |
| THE Sherry on the Top Ltd | Manufacturing | 2021 |
| THE Shop Midland Barbers Ltd | Other services | 2025 |
| THE Shopping Basket Limited | Hospitality | 2013 |
| THE SHS Collective Limited | Wholesale & retail | 2013 |
| THE Sign Team (Peterborough) Limited | Information & communication | 1998 |
| THE Singh Partnership Ltd | Professional & scientific | 2013 |
| THE SK Couriers Group Ltd | Transport & logistics | 2025 |
| THE Slanted Door Ltd | Hospitality | 2019 |
| THE Slater Group Limited | Extraterritorial | 2021 |
| THE Sleek Event LAB Ltd | Administrative & support | 2021 |
| THE Small Business Awards Ltd | Other services | 2023 |
| THE Smart Money Show CIC | Information & communication | 2025 |
| THE Specialised Clinic Ltd | Health & social care | 2025 |
| THE Spice Village (Eaton Ford) Ltd | Hospitality | 2025 |
| THE Sportsman (Chatteris) Ltd | Hospitality | 2017 |
| THE Square Management Company Limited | Other services | 1989 |
| THE Stables @ Woofers Welcome Yorkshire Limited | Administrative & support | 2020 |
| THE Sterling Choice Limited | Administrative & support | 2012 |
| THE Stratton Collection Limited | Extraterritorial | 2022 |
| THE Studio Smale Limited | Professional & scientific | 2017 |
| THE Supervision Group Ltd | Education | 2026 |
| THE Surebuild Group Limited | Construction | 2025 |
| THE Tails of Joy Ltd | Agriculture & fishing | 2024 |
| THE Talbot Inn Ltd | Hospitality | 2010 |
| THE Tansor Thrashing Company Limited | Arts & recreation | 1942 |
| THE Taxi Firm Limited | Transport & logistics | 2016 |
| THE Test Shop Limited | Information & communication | 2017 |
| THE Tetbury Soft Water Company Limited | Wholesale & retail | 2017 |
| THE Thrive Hive Group Limited | Health & social care | 2025 |
| THE Tile Library Property Management Limited | Professional & scientific | 2017 |
| THE Timber Touch Limited | Administrative & support | 2024 |
| THE Tipsy Towed Ltd | Hospitality | 2023 |
| THE Totally Group Holdings Limited | Financial services | 2006 |
| THE TPL Network Ltd | Extraterritorial | 2018 |
| THE Trade Group Limited | Financial services | 2023 |
| THE Transformation Agency Ltd | Professional & scientific | 2009 |
| THE Travel Print Company Ltd | Wholesale & retail | 2026 |
| THE True Frame Ltd | Health & social care | 2015 |
| THE True YOU Consulting Limited | Education | 2020 |
| THE Twisted Sweet Shop Ltd | Wholesale & retail | 2024 |
| THE Ultimate Hardware Co. Limited | Wholesale & retail | 1999 |
| THE Vacuum Store Limited | Wholesale & retail | 2015 |
| THE Vale of Belvoir Natural Burial Ground Limited | Other services | 2020 |
| THE Vape Inn 1 Limited | Wholesale & retail | 2015 |
| THE Vape Project Limited | Other services | 2014 |
| THE VET Van Ltd | Professional & scientific | 2025 |
| THE Village Doctor Ltd | Health & social care | 2023 |
| THE Village Tribune Limited | Information & communication | 2022 |
| THE Vine Free House Ltd | Hospitality | 2023 |
| THE Vineyard Peterborough Ltd | Construction | 2016 |
| THE Vintage Hub Ltd | Health & social care | 2021 |
| THE Vocational Day School Ltd | Arts & recreation | 2025 |
| THE Wadenhoe Trust | Real estate | 2022 |
| THE Waffle Guys Ltd | Hospitality | 2022 |
| THE Warehouse Import Ltd | Wholesale & retail | 2021 |
| THE Wash Basket (Cambs) Limited | Other services | 2014 |