| NOB Estate SP | | 2004 |
| NOB Hill Partners | | 1998 |
| Nobelart Ltd | Manufacturing | 2024 |
| Nobis Group Ltd | Professional & scientific | 2025 |
| Noble & Company (UK) Limited | Financial services | 2012 |
| Noble Alliance LP | | 2016 |
| Noble Business LP | | 2015 |
| Noble Empire North LP | | 2015 |
| Noble Engineering Design Ltd. | Professional & scientific | 2020 |
| Noble GI Limited | Administrative & support | 2019 |
| Noble Homes and Properties Management Ltd | Real estate | 2026 |
| Noble Leasing Ltd. | Administrative & support | 1996 |
| Noble Monsters Ltd | Arts & recreation | 2020 |
| Noble Rooms Ltd | Hospitality | 2021 |
| Noble Rosy LP | | 2016 |
| Noble Services Scotland Ltd | Information & communication | 2012 |
| Noble Star LP | | 2013 |
| Noblecraft Builders Ltd | Extraterritorial | 2026 |
| Noblesse LP | | 2016 |
| Noborders Trade LP | | 2018 |
| Nocciolo Ltd | Hospitality | 2025 |
| Nocor Limited | Administrative & support | 2025 |
| Nocte Private Investigations Ltd | Administrative & support | 2021 |
| Nocturn Digital Ltd | Professional & scientific | 2023 |
| Nocturnal Aviators Limited | Hospitality | 2001 |
| Nodale Consulting LP | | 2022 |
| Nodecast Global LP | | 2014 |
| Nodewiz Technologies Ltd | Information & communication | 2025 |
| Nodus Oncology Limited | Professional & scientific | 2020 |
| Nodzak Taxis Limited | Other services | 2003 |
| Noel I Investments SP | | 2001 |
| Noemie Carriere LP | | 2021 |
| Noemie Rodrigo LP | | 2021 |
| Nogal Ltd | Information & communication | 2009 |
| Noggin Braincare Ltd. | Health & social care | 2021 |
| Noggin the Brain People Limited | Other services | 2018 |
| NOI House Ltd | Real estate | 2020 |
| NOIS7 Holding LP | | 2022 |
| Noise ME UP Limited | Information & communication | 2012 |
| Noix Ltd | Wholesale & retail | 2022 |
| Nokko Ltd | Health & social care | 2025 |
| Nokta Hydration Ltd | Manufacturing | 2025 |
| Nokurai Ltd | Wholesale & retail | 2024 |
| Nokwest LP | | 2016 |
| Nolan Invest LP | | 2015 |
| Nolfont Investments LP | | 2021 |
| Nolte Property Ltd | Real estate | 2026 |
| Nolton Smart LP | | 2016 |
| Noma (GP) Limited | Real estate | 2014 |
| Noma Limited Partnership | | 2014 |
| Nomad Charging Box Ltd | Manufacturing | 2025 |
| Nomad Energy Solutions UK Limited | Information & communication | 2019 |
| Nomad Exhibitions (UK) Limited | Professional & scientific | 2012 |
| Nomad Infrastructure Ltd | Construction | 2024 |
| Nomad Physiotherapy Ltd. | Health & social care | 2024 |
| Nomad-Ik Development Ltd | Wholesale & retail | 2018 |
| Nomad-Ik Housing Ltd | Construction | 2022 |
| Nomade Medica LP | | 2021 |
| Nomadproductions LP | | 2020 |
| Nomads & Strangers Ltd | Extraterritorial | 2024 |
| Nomady Ltd | Information & communication | 2026 |
| Nomagalix Limited | Other services | 2017 |
| Nombex Invest LP | | 2015 |
| Nombex System LP | | 2012 |
| Nometa Community Interest Company | Information & communication | 2022 |
| Nomin Trade LP | | 2016 |
| Nominees for Eachaig Timeshare Syndicate Limited | Real estate | 2003 |
| Nominex (Dundee) Limited | Real estate | 1963 |
| Nomitex Group LP | | 2018 |
| Nomos Systems Ltd | Information & communication | 2026 |
| Nomw Health Limited | Professional & scientific | 2023 |
| NON Stop Advertising Ltd. | Professional & scientific | 1997 |
| Nona's World LP | | 2024 |
| Nonbinary Limited | Information & communication | 2017 |
| Nong Khai Ltd | Hospitality | 2022 |
| Nonge Limited | Real estate | 2010 |
| Nonno's Legacy Limited | Real estate | 2021 |
| Nonstop Cleaning Company Ltd | Administrative & support | 2026 |
| Noodle Box Dalkeith Ltd | Hospitality | 2026 |
| Noodle EAT Ltd. | Wholesale & retail | 2017 |
| Noodle Labs Ltd | Information & communication | 2025 |
| Noodles Inn Edinburgh Limited | Hospitality | 2023 |
| Noof Almatari Limited | Health & social care | 2026 |
| Nook and Cranny Studios CIC | Arts & recreation | 2025 |
| Noolkala Ltd | Wholesale & retail | 2025 |
| Noone International LP | | 2021 |
| Noonlight Ltd | Manufacturing | 2022 |
| Noor 306 Ltd | Construction | 2026 |
| Noor Food House Limited | Hospitality | 2024 |
| Noor. Market Limited | Wholesale & retail | 2026 |
| Noorvision Consulting Ltd | Administrative & support | 2024 |
| Nora and the Explorers Ltd | Administrative & support | 2017 |
| Nora Tinney Building Services Ltd | Construction | 2024 |
| Noracon Management LP | | 2015 |
| Norah Ltd | Hospitality | 2025 |
| Norberton Services L.P. | | 2009 |
| Norbrit Pizza Limited | Hospitality | 1999 |
| Norcom Recruitment Limited | Professional & scientific | 1991 |
| Nord Cargo L.P. | | 2013 |
| Nord Chambers LP | | 2015 |