| H.A.A.N.K Limited | Hospitality | 2017 |
| H.A.Q Builders Ltd | Construction | 2025 |
| H.B.H Drywall Limited | Construction | 2017 |
| H.C.P. Capital Partners LLP | | 2009 |
| H.Clayton Countryside Services Limited | Administrative & support | 2024 |
| H.E.R Bodywear Limited | Wholesale & retail | 2022 |
| H.Hammond & Sons,Limited | Wholesale & retail | 1949 |
| H.L.H. Property Ltd | Real estate | 2018 |
| H.Sladen & SON Limited | Transport & logistics | 1960 |
| H10 Business Solutions Limited | Information & communication | 2025 |
| H2 Aura Limited | Wholesale & retail | 2025 |
| H2 Courier Limited | Transport & logistics | 2025 |
| H2 Cyber Risk Advisory Services Ltd | Professional & scientific | 2016 |
| H2 Engineering Ltd | Professional & scientific | 2021 |
| H2 Petroleum Consulting Ltd | Mining & quarrying | 2014 |
| H20 Spa Limited | Wholesale & retail | 2015 |
| H22 Solutions Limited | Information & communication | 2010 |
| H2G Limited | Other services | 2025 |
| H2H Coaching Limited | Professional & scientific | 2018 |
| H2H Contract Services Limited | Construction | 2011 |
| H3A Consulting Limited | Professional & scientific | 2007 |
| H3K Limited | Transport & logistics | 2018 |
| H7 Properties Ltd | Real estate | 2019 |
| HA Enterprises (Nottingham) Ltd | Transport & logistics | 2026 |
| HA HA Properties Limited | Administrative & support | 2025 |
| HA Hoare Ltd | Administrative & support | 2022 |
| Ha-Rl Consultancy Limited | Professional & scientific | 2023 |
| HA2 Deepdale Management Limited | Households | 2015 |
| Haadi & Co Commercial Limited | Real estate | 2025 |
| Haadi & Co UK Ltd | Real estate | 2024 |
| Haak Investments Limited | Real estate | 2016 |
| Haank Habitat Limited | Real estate | 2020 |
| Haank Holdings Ltd | Real estate | 2019 |
| Haase Dobson Properties Ltd | Real estate | 2023 |
| Haash Ltd | Other services | 2021 |
| HAB Property Services Ltd | Real estate | 2020 |
| HAB PS LE1 Ltd | Hospitality | 2023 |
| HAB PS Limited | Hospitality | 2023 |
| Habib Locums Ltd | Other services | 2010 |
| Habib Mali Ltd | Real estate | 2022 |
| Habibi Wraps Ltd | Hospitality | 2026 |
| Habibies Limited | Hospitality | 2025 |
| Habie Schwarz Research Limited | Professional & scientific | 2016 |
| Habitat Management RTM Limited | Professional & scientific | 2010 |
| Habitat Residential Limited | Real estate | 2023 |
| Habzy Heights Ltd | Extraterritorial | 2022 |
| Hacienda Property and Lettings Ltd | Real estate | 2017 |
| Hackett Homes (Nottingham) Ltd | Real estate | 2021 |
| Hackett Lakes Camping Limited | Hospitality | 2022 |
| Hackett Lakes Limited | Administrative & support | 2008 |
| Hadas Cakes Ltd | Manufacturing | 2023 |
| Hadix Ltd | Wholesale & retail | 2026 |
| Hadleigh Management Consultancy Limited | Extraterritorial | 2012 |
| HAE Workshop Ltd | Professional & scientific | 2020 |
| Haes Developments Limited | Construction | 2023 |
| Haesam Limited | Information & communication | 2013 |
| Hafiz Couriers Ltd | Transport & logistics | 2025 |
| Hagarrad Ltd | Health & social care | 2023 |
| Hagnaby Ltd | Health & social care | 2022 |
| Haibei Food & Drinks Entertainment Ltd | Hospitality | 2024 |
| Haidav Homes Limited | Real estate | 2022 |
| Haider Medical Consultancy Ltd | Professional & scientific | 2022 |
| Haideri Group Ltd | Wholesale & retail | 2026 |
| Haiderstien Limited | Wholesale & retail | 2025 |
| Haileys House Limited | Wholesale & retail | 2025 |
| Hailo Global Limited | Information & communication | 2024 |
| Haines Building Ltd | Construction | 2025 |
| Haines Holistic Limited | Health & social care | 2025 |
| Haines Securities Ltd | Real estate | 2025 |
| Hainscroft Limited | Arts & recreation | 2019 |
| Hair @ Katies Ltd | Other services | 2015 |
| Hair and Cosmetics Wholesale Ltd | Wholesale & retail | 2017 |
| Hair Bar (Beeston) Ltd | Other services | 2025 |
| Hair by Lisa Joanne Ltd | Other services | 2021 |
| Hair by the Scissor Sisters Ltd | Other services | 2025 |
| Hair Glow Limited | Administrative & support | 2025 |
| Hair HEAVEN25 Ltd | Other services | 2025 |
| Hair Pantry Ltd | Other services | 2025 |
| Hair Progress Ltd | Other services | 2019 |
| Hair Shop (Notts) Ltd | Wholesale & retail | 2023 |
| Hairbyjud Ltd | Transport & logistics | 2023 |
| Hairlife UK Ltd | Other services | 2022 |
| Hairstream Beauty Place Limited | Other services | 2025 |
| Hairven Beauty & Spa Ltd | Administrative & support | 2016 |
| Hairven Ltd | Education | 2011 |
| Hairven Salon & Academy Ltd | Administrative & support | 2015 |
| Hairvolution UK Ltd | Health & social care | 2021 |
| Hairy Styles Dog Grooming Limited | Other services | 2023 |
| Haji Ghani's Ltd | Real estate | 2024 |
| Hajis Nottingham Limited | Hospitality | 2023 |
| Haka Investments Limited | Financial services | 2017 |
| Hakd Ltd | Transport & logistics | 2025 |
| Hakimee Ltd | Wholesale & retail | 2019 |
| Halabja Bakery Ltd | Wholesale & retail | 2025 |
| Halaiq Ltd | Transport & logistics | 2024 |
| Halchar Ltd | Real estate | 2018 |
| Halchax Ltd | Information & communication | 2009 |
| Halcyon Future Lodge Care Home Ltd | Health & social care | 2026 |
| Halcyon Golf Travel Limited | Arts & recreation | 2018 |
| Halcyon Redevelopments Ltd | Construction | 2013 |