| Hashara Ltd | Manufacturing | 2023 |
| Hashflare LP | | 2015 |
| Hashmart Limited | Wholesale & retail | 2024 |
| Hashtaq Fish Company Limited | Hospitality | 2020 |
| Hassam Naveed Ltd | Wholesale & retail | 2023 |
| Hassard Licensing Ltd | Professional & scientific | 2023 |
| Hassel Trade LP | | 2017 |
| Hasslefreehome Scot Ltd | Real estate | 2026 |
| Hastate Design Limited | Professional & scientific | 2021 |
| Hastcraft Ltd. | Manufacturing | 2026 |
| Hastie's Tasties Ltd | Hospitality | 2023 |
| Hasties Property Company Limited | Real estate | 1997 |
| HAT Painters (Scotland) Limited | Wholesale & retail | 1942 |
| HAT Trick Analytics Ltd | Information & communication | 2022 |
| Hatha Vidya Traditional School of Yoga Ltd | Education | 2022 |
| Hathorn Surgical Limited | Health & social care | 2021 |
| Hatkham Ltd | Hospitality | 2025 |
| Hatwell Investments L.P. | | 2009 |
| HATWILS35 Limited | Real estate | 2024 |
| Haughey Scott Adam Ltd | Wholesale & retail | 2026 |
| Hauntedburgh Tours Ltd | Administrative & support | 2024 |
| Haus of G CIC | Health & social care | 2024 |
| Haus of Pickleball Ltd | Arts & recreation | 2026 |
| Haus Werk Limited | Construction | 2010 |
| Haussier Ltd | Professional & scientific | 2018 |
| Havaco GEM Trading Ltd | Wholesale & retail | 2012 |
| Havanna Hippies Ltd | Professional & scientific | 2024 |
| Havbredey Limited | Energy | 2021 |
| Have a Nice Day Studios Ltd | Other services | 2024 |
| Have IT Framed Limited | Other services | 2018 |
| Havelock Capital LP | | 2016 |
| Haven Alliance LP | | 2017 |
| Haven Apartments Ltd. | Real estate | 2025 |
| Haven Cafe Ltd | Hospitality | 2023 |
| Haven Cars Ltd | Wholesale & retail | 2015 |
| Haven City Apartments Ltd | Real estate | 2016 |
| Haven Clinical Ltd | Health & social care | 2025 |
| Haven Plumbing & Heating Limited | Construction | 2016 |
| Haven Shawarma Ltd | Hospitality | 2025 |
| Havenline Invest LP | | 2012 |
| Havenly System LP | | 2012 |
| Havenstar Limited | Transport & logistics | 2001 |
| Havenstone Capital Ltd | Real estate | 2025 |
| Haverstock Homes Limited | Other services | 1990 |
| Havi Residential Holdings Ltd | Real estate | 2022 |
| Hawayoo Digital LP | | 2024 |
| Hawk Consultancy Limited | Professional & scientific | 2017 |
| Hawk Fields SP | | 2001 |
| Hawk Safety and Engineering Limited | Professional & scientific | 2024 |
| Hawker Coffee Ltd | Hospitality | 2025 |
| Hawkhill Digital Ltd | Professional & scientific | 2023 |
| Hawkhill House Limited | Health & social care | 1985 |
| Hawkhill Investments Limited | Real estate | 2024 |
| Hawlford Holdings LP | | 2015 |
| Haworth Creative Ltd | Information & communication | 2021 |
| Hawson Investment Trading (Scotland) Partnerhsip SP | | 2022 |
| Hawt Dawg Food Ltd | Hospitality | 2022 |
| Hawthorn Property Services Scotland Ltd | Construction | 2023 |
| Hawthorn Radiology Ltd. | Health & social care | 2018 |
| Hawthornbank Limited | Agriculture & fishing | 1989 |
| Hawthornden Press Limited | Professional & scientific | 1991 |
| HAY Renewables Limited | Energy | 2008 |
| HAY Superstore Ltd | Wholesale & retail | 2022 |
| HAY TX Limited | Health & social care | 2021 |
| Haya Group Ltd | Information & communication | 2023 |
| Haya Scotland Ltd | Real estate | 2025 |
| Hayat Cold LP | | 2014 |
| Haycap (NO 2) Limited | Professional & scientific | 2008 |
| Haycap (NO.1) Limited | Real estate | 1998 |
| Haygood Alliance LP | | 2014 |
| Haygood Management LP | | 2014 |
| Hayle Limited | Professional & scientific | 2004 |
| Hayle Trading LP | | 2013 |
| Hayleigh Enterprises Limited | Professional & scientific | 2004 |
| Haylien Ltd | Professional & scientific | 2025 |
| Haymarket Dental Ltd | Health & social care | 2015 |
| Haymarket Express Ltd | Wholesale & retail | 2023 |
| Haymarket Gifts & Groceries Ltd | Wholesale & retail | 2026 |
| Haymarket Property (Scotland) Limited | Real estate | 2015 |
| Haymarket Retail Limited | Wholesale & retail | 2024 |
| Hayrock Sales L.P. | | 2014 |
| Hays Plumbing Ltd | Households | 2026 |
| Hays Taxis Ltd. | Transport & logistics | 2003 |
| Haytex Commercial L.P. | | 2012 |
| Hazaan Industry Limited | Wholesale & retail | 2026 |
| Hazbit Ltd | Information & communication | 2023 |
| Haze Edinburgh Limited | Real estate | 2026 |
| Hazel Cameron Associates Ltd | Administrative & support | 2010 |
| Hazel Edinburgh Ltd | Hospitality | 2016 |
| Hazel Path Consulting Ltd | Professional & scientific | 2025 |
| Hazel Tech LP | | 2015 |
| Hazel Zone LP | | 2012 |
| Hazelar Industries LP | | 2012 |
| Hazelwell Care Home Limited | Health & social care | 2014 |
| Hazen Allied LP | | 2016 |
| Hazen Trade LP | | 2017 |
| Hazlett Crew Hire Limited | Construction | 2025 |
| Hazlewood Trading LP | | 2013 |
| HB Board Services LP | | 2021 |
| HB Fash Limited | Construction | 2018 |