| ICS Umbrella PAY Ltd | Administrative & support | 2018 |
| IGM Malta Limited | Manufacturing | 2016 |
| IGM Resins Limited | Administrative & support | 2003 |
| Immaculate Properties North East Limited | Construction | 2021 |
| Imperium DP Ltd | Wholesale & retail | 2019 |
| Interblock Consulting Limited | Information & communication | 2023 |
| International Trade Academy Ltd | Extraterritorial | 2021 |
| Intonera Consulting Limited | Administrative & support | 2014 |
| J&M Houses Limited | Real estate | 2021 |
| Jannaty Friends Limited | Education | 2025 |
| Jerseystore Limited | Real estate | 1982 |
| Jfdi DP Ltd | Wholesale & retail | 2017 |
| JJC Entertainment Group Ltd | Arts & recreation | 2025 |
| Joseph Harris Estate Agents Ltd | Real estate | 2024 |
| Kade HSE Ltd | Construction | 2019 |
| Karen Large Consultancy Limited | Professional & scientific | 2009 |
| KDM Partnership Limited | Construction | 2015 |
| KDM Recruitment Limited | Administrative & support | 2021 |
| Kedarnath Locum House Ltd | Health & social care | 2022 |
| Kirkham R&R Ltd | Hospitality | 2019 |
| Kiwi Leisure Ltd | Other services | 2018 |
| Klik UK (Saas) Ltd | Information & communication | 2022 |
| Krishnan Balaraj & Company Ltd | Health & social care | 2023 |
| Legacy (NE) Ltd | Real estate | 2015 |
| LMW & SON Property Management Limited | Real estate | 2021 |
| Lodge Security PAY Limited | Administrative & support | 2017 |
| Lodge Service UK PAY Limited | Administrative & support | 2017 |
| Lovelylawns 38 Ltd | Administrative & support | 2017 |
| LSK Developments Limited | Construction | 2006 |
| M. a. M. Access Limited | Mining & quarrying | 2018 |
| Magna DP Ltd | Wholesale & retail | 2019 |
| Mama Hub Ltd | Professional & scientific | 2024 |
| Manda Women's Healthcare Ltd | Health & social care | 2022 |
| Medwrite Pharma Ltd | Professional & scientific | 2021 |
| Midcontinent (Aberdeen) Limited | Wholesale & retail | 1989 |
| Middlesbrough 2 DP Ltd | Wholesale & retail | 2018 |
| Middlesbrough DP Ltd | Wholesale & retail | 2010 |
| MIH Projects Limited | Professional & scientific | 2003 |
| Mint Plates Ltd | Wholesale & retail | 2025 |
| Moirae Software Engineering Limited | Information & communication | 2007 |
| Mollyhouse Ltd | Hospitality | 2017 |
| Motion Distribution Ltd | Wholesale & retail | 2010 |
| Msig PAY Limited | Administrative & support | 2017 |
| Mskpredict Ltd | Information & communication | 2018 |
| MTK Direct Ltd | Administrative & support | 2020 |
| New Forest Heating Ltd | Construction | 2018 |
| Newton Aycliffe DP Ltd | Wholesale & retail | 2016 |
| Nice to BE Home Ltd | Health & social care | 2025 |
| North East Orthopaedics Ltd | Health & social care | 2023 |
| Northallerton DP Ltd | Wholesale & retail | 2016 |
| NOT in USE C&D 10 Ltd | Administrative & support | 2017 |
| NOT in USE C&D 6 Ltd | Administrative & support | 2016 |
| NOT in USE C&D 7 Ltd | Administrative & support | 2017 |
| NOT in USE C&D 8 Ltd | Administrative & support | 2017 |
| NOT in USE C&D 9 Ltd | Administrative & support | 2017 |
| NOT in USE Clve Ltd | Administrative & support | 2019 |
| NOT in USE DH (Steven) PAY Ltd | Administrative & support | 2018 |
| NOT in USE DH (Wakef) PAY Limited | Administrative & support | 2017 |
| NOT in USE Dhsp Ltd | Administrative & support | 2018 |
| NOT in USE Dhwp Ltd | Administrative & support | 2018 |
| NOT in USE Driver Hire (LEI) PAY Limited | Administrative & support | 2017 |
| NOT in USE Gckp Ltd | Administrative & support | 2017 |
| NOT in USE IMP Ltd | Administrative & support | 2016 |
| NOT in USE Incp Ltd | Administrative & support | 2018 |
| NOT in USE Major Ltd | Administrative & support | 2017 |
| NOT in USE MSP Ltd | Administrative & support | 2016 |
| NOT in USE Mspin Ltd | Administrative & support | 2016 |
| NOT in USE Pace Ltd | Administrative & support | 2017 |
| NOT in USE Sbrp Ltd | Administrative & support | 2018 |
| Novo DP Ltd | Wholesale & retail | 2018 |
| Nsdz Ltd | Health & social care | 2022 |
| NVC Security PAY Ltd | Administrative & support | 2019 |
| NWM Contracting PAY Limited | Administrative & support | 2017 |
| Okaa Limited | Health & social care | 2023 |
| Orthopod Ltd | Health & social care | 2023 |
| PDR Pro Limited | Wholesale & retail | 2018 |
| People Enterprises Limited | Administrative & support | 2004 |
| People Partners Associates Ltd | Professional & scientific | 2024 |
| Permatech Europe Limited | Information & communication | 2026 |
| Peterlee DP Ltd | Wholesale & retail | 2017 |
| PG Medical Services Ltd | Health & social care | 2022 |
| Phillips Construction (N.E.) Limited | | 2013 |
| Ponty DP Ltd | Wholesale & retail | 2017 |
| Poolie Junk Monkeys Ltd | Water & waste | 2022 |
| Poppy Homes (NE) Limited | Real estate | 2024 |
| Poppypride Management Limited | Professional & scientific | 2016 |
| Primus DP Ltd | Wholesale & retail | 2017 |
| Priority Education Limited | Education | 2022 |
| Project Resource PAY Limited | Administrative & support | 2018 |
| Pure Financial (IC) Ltd | Other services | 2025 |
| Pure Financial Ltd | Administrative & support | 2017 |
| Q-Inova Laboratories Ltd | Manufacturing | 2022 |
| Racz and Red Ltd | Hospitality | 2018 |
| Racz Consultancy Ltd | Professional & scientific | 2015 |
| Racz Group GBS Ltd | Financial services | 2023 |
| Racz Group Ltd | Financial services | 2015 |
| Racz Homes Ltd | Construction | 2022 |
| Racz Properties Ltd | Real estate | 2020 |
| Racz Residential Holdings Ltd | Real estate | 2020 |
| Rajan Babu Associates Ltd | Health & social care | 2023 |