| THE Maidonian Limited | Administrative & support | 2015 |
| THE Mansha Ltd | Wholesale & retail | 2025 |
| THE Masala Darbar Limited | Hospitality | 2018 |
| THE Mathologist Limited | Education | 2023 |
| THE Maxted Corporation Limited | Real estate | 2021 |
| THE Meadows Care (Huntly) Limited | Health & social care | 2019 |
| THE Meads Park Road RTM Company Ltd | Households | 2023 |
| THE Mind Gyrus Limited | Education | 2026 |
| THE Mindful Chef Collective Ltd | Hospitality | 2025 |
| THE Mithai Box (UK) Limited | Wholesale & retail | 2023 |
| THE Mithai Box Limited | Wholesale & retail | 2019 |
| THE MMA LAB Ltd | Arts & recreation | 2026 |
| THE Morning Wash Ltd | Information & communication | 2022 |
| THE Mortgage Advice Company (UK) Limited | Financial services | 2003 |
| THE Motor Hardwares Ltd | Professional & scientific | 2016 |
| THE Mouthfull Trading Company Limited | Wholesale & retail | 2017 |
| THE Musselman Limited | Administrative & support | 2013 |
| THE Myrke Residents Management Company Limited | Hospitality | 1995 |
| THE Natural Sea Sponge Company Limited | Other services | 1996 |
| THE Nest HMO & Portfolio Management Ltd | Real estate | 2025 |
| THE Neutral Store Ltd | Wholesale & retail | 2018 |
| THE New Breakfast Cafe Limited | Hospitality | 2023 |
| THE Next Mile Ltd | Professional & scientific | 2023 |
| THE Ninth Code Limited | Wholesale & retail | 2026 |
| THE Nizam Companyxz Ltd | Wholesale & retail | 2026 |
| THE Noise Cartel Limited | Administrative & support | 2009 |
| THE Old W Cafe Ltd | Hospitality | 2017 |
| THE Original K'S Barbers Limited | Other services | 2025 |
| THE Orvana Collective Limited | Other services | 2025 |
| THE Oval GP Surgery Ltd | Health & social care | 2019 |
| THE Padel Hub GU52 Ltd | Arts & recreation | 2025 |
| THE Padel Hub KT19 Ltd | Arts & recreation | 2024 |
| THE Padel Hub N20 Limited | Arts & recreation | 2024 |
| THE Padel Hub RG1 Ltd | Arts & recreation | 2024 |
| THE Padel Hub RH17 Ltd | Arts & recreation | 2023 |
| THE Padel Hub SO16 Limited | Arts & recreation | 2025 |
| THE Padel Hub TN2 Ltd | Arts & recreation | 2025 |
| THE Park Federation Academy Trust | Education | 2012 |
| THE Parkview Trading Limited | Wholesale & retail | 2021 |
| THE Perfume House London Ltd | Wholesale & retail | 2019 |
| THE Perfumers Way Ltd | Wholesale & retail | 2016 |
| THE Pink PIG SA Ltd | Information & communication | 2017 |
| THE Polish Heritage Centre Im.Abp Szczepana Wesolego Limited | Wholesale & retail | 2021 |
| THE Portfolio Clinic CIC | Education | 2021 |
| THE Power of 5 Limited | Wholesale & retail | 2015 |
| THE Power PR Ltd | Professional & scientific | 2025 |
| THE Practice Engine Group Limited | Information & communication | 2000 |
| THE Pristine Real Estate Solutions Limited | Extraterritorial | 2020 |
| THE Private Collection Ltd | Construction | 2025 |
| THE Pro Food Shop Limited | Manufacturing | 2026 |
| THE Product Runway Limited | Professional & scientific | 2022 |
| THE Project 228 Ltd | Hospitality | 2026 |
| THE Property Smart Group Ltd | Real estate | 2020 |
| THE Prospect Tree Limited | Information & communication | 2015 |
| THE Punjab Kitchen Limited | Manufacturing | 2019 |
| THE Pyro Firm Fireworks Limited | Wholesale & retail | 2024 |
| THE Qualifiers Ltd | Education | 2018 |
| THE Range Bedrooms Ltd | Manufacturing | 2019 |
| THE Re-Gents Clinic Ltd | Other services | 2026 |
| THE Reclaimed Radiator Company (London) Ltd | Extraterritorial | 2015 |
| THE Red Lion (Marsworth) Limited | Hospitality | 2012 |
| THE Rekindle Foundation | Other services | 2021 |
| THE Reno Edit Ltd | Professional & scientific | 2021 |
| THE Richings Park Golf Academy Ltd | Education | 2018 |
| THE Rise Constructions ( Slough ) Ltd | Construction | 2022 |
| THE Risk Advisors (UK) Ltd | Information & communication | 2022 |
| THE Roadside Mobile Tyre Company Ltd | Wholesale & retail | 2023 |
| THE Russell Library Ltd | Financial services | 2026 |
| THE Sales Enablement Company Ltd | Extraterritorial | 2010 |
| THE Sandwich Van Ltd | Hospitality | 2013 |
| THE Schelwood Trust | Education | 2012 |
| THE Secret Garden Salon Limited | Other services | 2019 |
| THE Shoppe Limited | Wholesale & retail | 2020 |
| THE Skin Club Ltd | Other services | 2025 |
| THE Skin Tales Ltd | Wholesale & retail | 2025 |
| THE Slough & Maidenhead Sign Company Limited | Manufacturing | 2014 |
| THE Slough and East Berkshire C of E Multi Academy Trust | Education | 2011 |
| THE Slough JOB Creation Hub C.I.C. | Administrative & support | 2020 |
| THE Slough Sikh School Trust | Education | 2003 |
| THE Smart Education and Childcare System Ltd | Education | 2026 |
| THE Snack Street Ltd | Hospitality | 2025 |
| THE Social Network Group Ltd | Hospitality | 2022 |
| THE Socialite London Ltd | Professional & scientific | 2021 |
| THE Specialist Education Trust | Education | 2013 |
| THE Success Centre Limited | Education | 2004 |
| THE Sunday Investing Club LLP | | 2024 |
| THE Tailor Slough Ltd | Other services | 2015 |
| THE Tango Plus Ltd | Wholesale & retail | 2025 |
| THE Taste of Peshawar Slough Ltd | Hospitality | 2025 |
| THE Teepee Dreamers Company Ltd | Other services | 2021 |
| THE Tile Supplies Ltd | Construction | 2025 |
| THE Tiramisu Factory Ltd | Hospitality | 2022 |
| THE Toss Consultancy Ltd | Education | 2023 |
| THE Travel DMC Ltd | Administrative & support | 2017 |
| THE Travel Trunk Ltd | Administrative & support | 2024 |
| THE TUK Shop Ltd | Wholesale & retail | 2026 |
| THE Uniquill Ltd | Information & communication | 2022 |
| THE Urban Rose Ltd | Other services | 2018 |
| THE Velvet Table Ltd | Hospitality | 2025 |
| THE Versatile Touch Services Ltd | Health & social care | 2016 |