| Hans Estates Ltd | Real estate | 2019 |
| Hans Renold Limited | Professional & scientific | 2011 |
| Hansbuy Trading Co., Limited | Wholesale & retail | 2026 |
| Hansons Plastering Limited | Construction | 2026 |
| Hansour Elkholi for Investment Ltd | Other services | 2021 |
| Hansten Holdings Limited | Financial services | 2020 |
| Hanthorn House School Limited | Education | 2025 |
| Hanul SM Ltd | Wholesale & retail | 2019 |
| Hanumant Limited | Professional & scientific | 2012 |
| Hanumate Ltd | Wholesale & retail | 2024 |
| Hanway London Limited | Financial services | 2023 |
| HAO Medicals Limited | Health & social care | 2023 |
| HAO YUN 888 Ltd | Hospitality | 2024 |
| Haoenuk Limited | Wholesale & retail | 2025 |
| Haohao Trading Ltd | Wholesale & retail | 2020 |
| Haoliwei Ltd | Wholesale & retail | 2025 |
| Haoming Ltd | Real estate | 2021 |
| Haowei Property Limited | Construction | 2018 |
| Haoyi Aviation Technology Co., Ltd. | Manufacturing | 2023 |
| Hapellis Limited | Health & social care | 2018 |
| Hapolo Limited | Wholesale & retail | 2025 |
| Happeninginmcr CIC | Arts & recreation | 2025 |
| Happiness to LET Ltd | Real estate | 2021 |
| Happvape Limited | Wholesale & retail | 2023 |
| Happy & Tasty Limited | Hospitality | 2018 |
| Happy Adventures Tourism UK Limited | Administrative & support | 2020 |
| Happy Blossoms Limited | Other services | 2018 |
| Happy Dale Learning Centre Ltd | Health & social care | 2026 |
| Happy Days Nursery (Orton RD) Ltd | Education | 2017 |
| Happy Diamond Pizza Ltd | Hospitality | 2025 |
| Happy Ding Ltd | Wholesale & retail | 2026 |
| Happy Dishes Ltd | Hospitality | 2024 |
| Happy Distro UK Limited | Wholesale & retail | 2025 |
| Happy Dreams Ltd | Construction | 2018 |
| Happy EAT Takeaway Ltd | Hospitality | 2026 |
| Happy Eating Ltd | Hospitality | 2024 |
| Happy Family Estates Ltd | Real estate | 2024 |
| Happy Fast Food Limited | Wholesale & retail | 2026 |
| Happy Feet Wholesale Ltd | Wholesale & retail | 2026 |
| Happy for YOU Limited | Wholesale & retail | 2023 |
| Happy Garden Middleton Ltd | Hospitality | 2017 |
| Happy Harmony Limited | Hospitality | 2023 |
| Happy Harry Wholesale International Limited | Wholesale & retail | 2026 |
| Happy Haulers Ltd | Transport & logistics | 2025 |
| Happy Haven Care Group Ltd | Health & social care | 2025 |
| Happy Heart Nanny Ltd | Health & social care | 2025 |
| Happy Hearts Daycare Ltd | Health & social care | 2026 |
| Happy Helping Ltd | Wholesale & retail | 2025 |
| Happy Heritage Limited | Professional & scientific | 2011 |
| Happy Home 108 Ltd | Extraterritorial | 2022 |
| Happy Home 24 Seniorenberatung Ltd | Administrative & support | 2024 |
| Happy Homes Acquisitions Limited | Real estate | 2022 |
| Happy Homes Manchester Ltd | Administrative & support | 2017 |
| Happy Homes UK Limited | Real estate | 2000 |
| Happy Hoppers Bouncy Castles Ltd | Arts & recreation | 2025 |
| Happy Horse Land Ltd. | Extraterritorial | 2026 |
| Happy Houndz Denton Ltd | Other services | 2024 |
| Happy House for Industry and Furnishing Trading Ltd | Wholesale & retail | 2025 |
| Happy Humans Ltd | Information & communication | 2024 |
| Happy Lemon Trading Limited | Wholesale & retail | 2026 |
| Happy Life Limited | Information & communication | 2023 |
| Happy Lines Ltd | Wholesale & retail | 2025 |
| Happy Mark Ltd | Hospitality | 2014 |
| Happy Martins Ltd | Professional & scientific | 2021 |
| Happy Minds Group Limited | Health & social care | 2025 |
| Happy Moose Limited | Professional & scientific | 2017 |
| Happy Music Ltd | Education | 2012 |
| Happy Nails and Lashes Ltd | Wholesale & retail | 2024 |
| Happy Nest Edinburgh Ltd | Real estate | 2025 |
| Happy Nest Limited | Real estate | 2012 |
| Happy News Ready Made Garments Trading Ltd | Wholesale & retail | 2021 |
| Happy Place Abode Ltd | Real estate | 2020 |
| Happy Player Ltd | Manufacturing | 2026 |
| Happy Radio Events Ltd | Information & communication | 2024 |
| Happy Radio UK Limited | Information & communication | 2021 |
| Happy Sales Swinton Limited | Wholesale & retail | 2024 |
| Happy Seasons 198 Ltd | Hospitality | 2026 |
| Happy Seasons 35 Limited | Hospitality | 2019 |
| Happy Seasons Ltd | Hospitality | 2023 |
| Happy Studios AB Ltd | Other services | 2020 |
| Happy Time to Ltd | Extraterritorial | 2025 |
| Happy Timers C.I.C. | Health & social care | 2017 |
| Happy Times Tequila Limited | Wholesale & retail | 2026 |
| Happy Tots Ltd | Health & social care | 2013 |
| Happy Tots R US Ltd | Wholesale & retail | 2017 |
| Happy Trading Group Ltd | Wholesale & retail | 2020 |
| Happy Unit Limited | Wholesale & retail | 2022 |
| Happy Vibes Catering Ltd | Hospitality | 2023 |
| Happybyte Games Ltd | Information & communication | 2026 |
| Happyglaze Ltd | Construction | 2022 |
| Happyness Social Care Ltd | Health & social care | 2021 |
| Hapton Care Homes Limited | Administrative & support | 1996 |
| Haptonbild Limited | Households | 1972 |
| HAQ Logistics Ltd | Wholesale & retail | 2021 |
| HAQ Solutions Limited | Information & communication | 2016 |
| HAQ Trading Ltd | Wholesale & retail | 2014 |
| Haqq Ltd | Wholesale & retail | 2013 |
| Haqq Properties Ltd | Real estate | 2017 |
| Haque & Sons Estates Ltd | Real estate | 2023 |
| HAR Carmel Limited | Education | 2023 |