| Infrarad Limited | Wholesale & retail | 2017 |
| Inizia Business Ltd | Other services | 2025 |
| Inner Circle Security Solutions Limited | Administrative & support | 2018 |
| Inspire 321 Ltd | Wholesale & retail | 2019 |
| Inspire Community | Other services | 2022 |
| International Humanitarian AID | Health & social care | 2024 |
| Invest North West Properties Ltd | Real estate | 2020 |
| Irwell Estates Limited | Other services | 2024 |
| Iska Limited | Real estate | 2020 |
| Ivanbagsi Ltd | Other services | 2017 |
| Jaadc Ltd | Construction | 2025 |
| JAK Property Solutions Ltd | Real estate | 2024 |
| Jamaf Food & Bar Ltd | Hospitality | 2023 |
| James Thorpe & SON Limited | Construction | 1953 |
| Janet Properties Ltd | Real estate | 2019 |
| Jarr Properties Limited | Other services | 2023 |
| JB MTG Limited | Financial services | 2020 |
| JC Electronic Technology Ltd | Wholesale & retail | 2020 |
| Jess Investments Ltd | Real estate | 2023 |
| Jexcom Services Limited | Administrative & support | 2017 |
| JG Jewellery Limited | Wholesale & retail | 2023 |
| JHB Storage Ltd | Administrative & support | 2023 |
| Jimf Property Ltd | Real estate | 2024 |
| JMS Ents Ltd | Administrative & support | 2022 |
| Jobby Foods & Services Limited | Manufacturing | 2012 |
| Jober Estates Ltd | Real estate | 2017 |
| Josh Daniel Science and Math Education Ltd | Education | 2024 |
| Jr&D Sillis Blinds Ltd | Wholesale & retail | 2021 |
| JRM Power Services Limited | Professional & scientific | 2023 |
| JS Shipudim Ltd | Hospitality | 2024 |
| JTE Trainings Ltd | Education | 2024 |
| Jtek Engineering Ltd | Other services | 2018 |
| Judson Blinds Ltd | Wholesale & retail | 2021 |
| Jwc&Co Limited | Wholesale & retail | 2024 |
| K&S Contractors (NW) Ltd | Construction | 2024 |
| KAR Real Estate Ltd | Real estate | 2025 |
| Kaylaw Limited | Professional & scientific | 2013 |
| Keene Air Consultants Ltd | Professional & scientific | 2024 |
| Keeper Computing Limited | Wholesale & retail | 2019 |
| Kennedy Road Ltd | Real estate | 2017 |
| Kerala Super Mart Ltd | Wholesale & retail | 2025 |
| Key FIX Security Ltd | Other services | 2024 |
| Keymaurice Ltd | Real estate | 2023 |
| Khechiwe Limited | Other services | 2023 |
| Kiddoconnect Ltd | Wholesale & retail | 2023 |
| Kimote Limited | Wholesale & retail | 2024 |
| King of Hearts SPV Limited | Real estate | 2025 |
| Kitchen Envy Ltd | Construction | 2019 |
| Kitchen Partners Ltd | Real estate | 2024 |
| Knott Coffee Ltd | Hospitality | 2024 |
| L S Communications UK Limited | Information & communication | 2006 |
| LA Bonne Semence Community Support CIC | Other services | 2016 |
| LA Fleur Bridal (Middleton) Limited | Wholesale & retail | 2011 |
| Lakewood Ltd | Real estate | 2025 |
| Laks Solutions Limited | Administrative & support | 2022 |
| Lancashire Plastic Surgery Limited | Health & social care | 2023 |
| Landrock Ltd | Real estate | 2024 |
| LB Orthopaedics Manchester Ltd | Health & social care | 2017 |
| Leading Learning Together Ltd | Education | 2022 |
| Leipzig EB Ltd | Real estate | 2026 |
| Leons Lionharts C.I.C. | Health & social care | 2025 |
| Lester House Ltd | Real estate | 2025 |
| Letsmove Multilets Limited | Real estate | 2019 |
| Levelled UP Developments Ltd | Other services | 2023 |
| Levelled UP Property Ltd | Real estate | 2025 |
| Levicare Limited | Administrative & support | 2018 |
| Leygate Ltd | Real estate | 2025 |
| LG Heating & Plumbing NW Limited | Construction | 2023 |
| Libitrade Ltd | Professional & scientific | 2023 |
| Life & Legacy Limited | Administrative & support | 2022 |
| Lilinthal Limited | Real estate | 2024 |
| Ljjr Group Ltd | Construction | 2020 |
| Ljjr Holding Limited | Financial services | 2022 |
| LJN Electrical Solutions Ltd | Construction | 2022 |
| Long Avenue Estates Ltd | Real estate | 2018 |
| LTP Maida Vale 1 Limited | Real estate | 2024 |
| LTP Maida Vale Limited | Real estate | 2024 |
| LTP Rainham Ltd | Other services | 2024 |
| Luca Z Engineering Limited | Water & waste | 2019 |
| Lumos Electrical Solutions Ltd | Construction | 2024 |
| Luxury Carpet and Beds Ltd | Wholesale & retail | 2019 |
| LW Projects Ltd | Other services | 2024 |
| Lydia Enterprises Ltd | Health & social care | 2014 |
| M & a Investments (MCR) Limited | Real estate | 2017 |
| M & C Baker Limited | Real estate | 2019 |
| M J Carney Consulting Ltd | Professional & scientific | 2022 |
| M&D Fireprotection Ltd | Public administration | 2019 |
| Madeleine Lindley Limited | Wholesale & retail | 1988 |
| Magnolia Partners Limited | Real estate | 2022 |
| Magnum Marketing Limited | Professional & scientific | 2021 |
| Maine Global Limited | Wholesale & retail | 2025 |
| Maisielily Ltd | Professional & scientific | 2019 |
| Maison Space Ltd | Real estate | 2020 |
| Majeed Khan Ltd | Wholesale & retail | 2025 |
| Manchester Bakery Limited | Manufacturing | 2023 |
| Manchester Building Services Limited | Construction | 2017 |
| Manchester Car Repairs Ltd | Wholesale & retail | 2014 |
| Manchester Custom Graphics T-Shirt Ltd | Manufacturing | 2026 |
| Manchester Heating Services Limited | Construction | 2021 |
| Manchester Home Rental Limited | Real estate | 2024 |