| Haddington Developments Limited | Real estate | 2005 |
| Haddington Roofing & Painting Ltd | Construction | 2017 |
| Haddington Trustees Limited | Other services | 2018 |
| Hadeda Medical Limited | Health & social care | 2012 |
| Hadeed Limited | Wholesale & retail | 2016 |
| Hadeel (UK) Limited | Wholesale & retail | 2003 |
| Hadei Partners Ltd | Wholesale & retail | 2026 |
| Hader Enterprises Limited | Wholesale & retail | 2019 |
| Hades U.K. Ltd | Wholesale & retail | 2019 |
| Hadplaid Limited | Real estate | 2009 |
| Hadria Global Steel LP | | 2016 |
| Hadrien Partnership | | 2000 |
| HAF Holdings Ltd | Financial services | 2026 |
| Hafiz Motors Ltd | Transport & logistics | 2023 |
| Hafiz Property Ltd | Real estate | 2024 |
| Hafiz Technical Services Ltd | Wholesale & retail | 2026 |
| Haggart Plumbers Ltd | Construction | 2022 |
| Haggerston Elegant LP | | 2016 |
| Haggerston Enterprises LP | | 2014 |
| Haggis Hospitality Ltd | Hospitality | 2011 |
| Hagmill Road Shed Limited | Construction | 2020 |
| Hahei Consulting Limited | Professional & scientific | 2023 |
| Haider & Haider Ltd | Health & social care | 2015 |
| Haider Enterprises Ltd | Transport & logistics | 2022 |
| Haides Ltd | Information & communication | 2020 |
| Haifa Limited | Transport & logistics | 2023 |
| Haigo Retail Limited | Wholesale & retail | 2019 |
| Haiku Interactive Limited | Information & communication | 2019 |
| Hailes Group Ltd | Financial services | 2021 |
| Hailes Window Contractors Limited | Construction | 2016 |
| Hailesland Park 1954 Limited | Extraterritorial | 2014 |
| Hailohome Limited | Transport & logistics | 2023 |
| Haines Housing Ltd | Construction | 2024 |
| Haines Watts Scotland Audit LLP | | 2020 |
| Hair (EDI) Ltd | Other services | 2012 |
| Hair by Chiron Ltd. | Wholesale & retail | 2017 |
| Hair by Christopher Laird Limited | Other services | 2026 |
| Hair by Jessica Ltd. | Other services | 2019 |
| Hair by JFK Limited | Other services | 2009 |
| Hair Lounge by Abbie Ltd | Other services | 2023 |
| Hair Revive Edinburgh Ltd | Other services | 2025 |
| Hair Revive LAB Ltd | Other services | 2025 |
| Hairbaze Limited | Other services | 2015 |
| Hairpod (Edin) Ltd | Other services | 2021 |
| Hairstyle Calder Road Ltd | Other services | 2020 |
| Hairy Haggis Tours Ltd | Transport & logistics | 2020 |
| Hairy Spoon Ltd | Professional & scientific | 2024 |
| Haisurf Media LP | | 2017 |
| Hakina Ltd | Wholesale & retail | 2021 |
| Hakluyt Capital I Carry LP | | 2022 |
| Hakluyt Capital I Pooling LP | | 2022 |
| HAL Experts Ltd | Professional & scientific | 2021 |
| Halal Trade LP | | 2017 |
| Halatrades Limited | Wholesale & retail | 2025 |
| Halbeath Assets Limited | Manufacturing | 1900 |
| Halbeath Solar Ltd | Energy | 2023 |
| Halcourt & Co | | 1990 |
| Halcourt & Co | | 1992 |
| Halcyon Corp LP | | 2015 |
| Halcyon Escapes Limited | Other services | 2025 |
| Haldane Energy Limited | Financial services | 2023 |
| Half 8 Ltd. | Hospitality | 2017 |
| Half a Million Limited | Wholesale & retail | 2020 |
| Half Moon Holidays Ltd | Hospitality | 2015 |
| Half Nelson Film Production Limited | Information & communication | 2020 |
| Half-Cut Barbershop Ltd | Other services | 2023 |
| Half-Light Press Limited | Information & communication | 2023 |
| Halffull Studio Limited | Professional & scientific | 2023 |
| Halfglass Ltd | Professional & scientific | 2025 |
| Halia Limited | Professional & scientific | 2010 |
| Hall Software Solutions Limited | Professional & scientific | 2025 |
| HALL8 Limited | Real estate | 2017 |
| Halladale SLP | | 1997 |
| Halladey Consulting Limited | Information & communication | 2016 |
| Hallbank Limited | Real estate | 1982 |
| Hallbar Homes Ltd | Construction | 2022 |
| Hallelpay Limited | Financial services | 2025 |
| Hallian Properties Ltd | Hospitality | 2021 |
| Halliard Consulting Ltd | Mining & quarrying | 2013 |
| Halliday Lighting Ltd | Construction | 2015 |
| Halliday Planning and Development Ltd | Professional & scientific | 2018 |
| Hallmark Driveways Ltd | Administrative & support | 2022 |
| Hallmark Roofing Edinburgh Ltd | Construction | 2017 |
| Hallmark-It Limited | Extraterritorial | 2011 |
| Halls Homes International Limited | Real estate | 2017 |
| Halltrade EU Ltd | Professional & scientific | 2022 |
| Halo Benefits Ltd | Professional & scientific | 2025 |
| Halo Consultancy Group Ltd | Professional & scientific | 2025 |
| Halo Hair Design Edinburgh Limited | Other services | 2023 |
| Halo Offshore UK Limited | Administrative & support | 2008 |
| Halobridge Capital Ltd | Wholesale & retail | 2026 |
| Halophyte Group Limited | Professional & scientific | 2025 |
| Halor Digital LP | | 2016 |
| Halos AI Ltd | Information & communication | 2026 |
| Halter Assets LP | | 2013 |
| Halwyn Capital Ltd | Financial services | 2018 |
| Halydant Group LP | | 2019 |
| Halysa Business LP | | 2016 |
| Halzio Ltd | Information & communication | 2025 |
| HAM SAH Ltd | Other services | 2020 |