| Household Comfort Market LP | | 2014 |
| Houselore Ltd | Professional & scientific | 2025 |
| Housemax Limited | Real estate | 2023 |
| Houseofthistle Ltd | Wholesale & retail | 2020 |
| Houseproud of Morningside Ltd | Wholesale & retail | 2012 |
| Houses to Homes (Greenock) Limited | Real estate | 2018 |
| Housing Options Scotland | Health & social care | 1997 |
| Hoverbase Corporation LP | | 2016 |
| Hoverforth Limited | Transport & logistics | 2021 |
| Hovers Lighting System Solution LP | | 2017 |
| HOW2GLU Ltd | Professional & scientific | 2020 |
| Howard Bay LP | | 2016 |
| Howard Export LP | | 2012 |
| Howard-Johnston Limited | Wholesale & retail | 1988 |
| Howarth & Johnston Limited | Professional & scientific | 2004 |
| Howatson Ltd. | Hospitality | 2013 |
| Howden Petite Ltd | Health & social care | 2012 |
| Howdengrange Financial Services Limited | Financial services | 2011 |
| Howepark Taxis Ltd. | Professional & scientific | 2005 |
| Howes About IT Limited | Real estate | 2005 |
| Howgate Property Limited | Extraterritorial | 2015 |
| Howie & Seath Limited | Manufacturing | 1960 |
| Howie Nicholsby Ltd | Manufacturing | 2008 |
| Howie Property & Hospitality Limited | Hospitality | 2014 |
| Howkerse & Co Limited | Financial services | 2023 |
| Howl & Hoodwink Ltd | Wholesale & retail | 2024 |
| Howlett Property Services Ltd | Real estate | 2024 |
| Howmuir Solar Limited | Energy | 2015 |
| Howson Enterprise Ltd | Wholesale & retail | 2018 |
| Hoxton Campus LP | | 2020 |
| Hoxton General Partner LLP | | 2020 |
| Hoxton Securities (Glasgow) Limited | Administrative & support | 2019 |
| Hoxton Ventures Greenshoots I, (Scot) Ltd | Financial services | 2025 |
| Hoxton Ventures Greenshoots I, C.V. L.P. | | 2025 |
| Hoxton Ventures II, (Scot) Ltd | Financial services | 2018 |
| Hoxton Ventures II, C.V. L.P. | | 2018 |
| Hoxton Ventures III, (Scot) Ltd | Financial services | 2021 |
| Hoxton Ventures III, C.V. L.P. | | 2021 |
| Hoxton Ventures IV, (Scot) Ltd | Financial services | 2024 |
| Hoxton Ventures IV, C.V. L.P. | | 2024 |
| Hoxton, Chambers & Co | | 1991 |
| HP Financial Holdings LP | | 2023 |
| HP Property Edinburgh Limited | Real estate | 2025 |
| HP Technology Ltd | Professional & scientific | 2020 |
| Hpage Holding LP | | 2022 |
| HPC Patron Scotland LP | | 2004 |
| HPC Tubing Limited | Construction | 2025 |
| HPE Environmental Innovation Founder Partner LP | | 2010 |
| HPE Environmental Innovation GP Limited | Financial services | 2010 |
| HPE II GP LP | | 2014 |
| HPE Scottish (NO. 1 Tech) L.P. | | 2001 |
| HPE Scottish (NO. 2 Tech) L.P. | | 2001 |
| HPE Scottish (NO. 3 European) L.P. | | 2001 |
| HPE Scottish (NO. 4 European) L.P. | | 2001 |
| HPE SGP Limited | Financial services | 2013 |
| HPE4 CIP L.P. | | 2014 |
| HPE5 CIP L.P. | | 2019 |
| HPE6 CIP, L.P. | | 2022 |
| HPL Development LLP | | 2020 |
| Hpnb Ltd | Information & communication | 2019 |
| HPS (Edinburgh) Limited | Real estate | 2009 |
| HPS Scotland Mezz II GP LLP | | 2014 |
| HPT Invest IX LP | | 2024 |
| HPT Invest LP | | 2017 |
| HPT Invest VII LP | | 2019 |
| HPT Invest Viii LP | | 2021 |
| HQ Electrical & Construction Services Ltd | Construction | 2014 |
| HQ L.P. | | 2006 |
| HQ Union LP | | 2013 |
| Hqdent Ltd | Health & social care | 2024 |
| HQF Technics L.P. | | 2011 |
| HR Agile Ltd | Professional & scientific | 2024 |
| Hreim Margate Ltd | Construction | 2023 |
| HRF Edinburgh Ltd | Wholesale & retail | 2018 |
| Hristova Trans Limited | Transport & logistics | 2023 |
| HRL 1 Limited | Extraterritorial | 2012 |
| Hrwilson Ltd | Professional & scientific | 2015 |
| HS (Edinburgh) Ltd | Hospitality | 2014 |
| HS Contracts Limited | Construction | 2023 |
| HS Realisations Limited | Construction | 1968 |
| HS Scotland Ltd | Hospitality | 2025 |
| HS Vision Ltd | Manufacturing | 2019 |
| HSA Edinburgh Limited | Administrative & support | 2022 |
| Hsanawn Ltd | Wholesale & retail | 2025 |
| HSB Edinburgh Ltd | Wholesale & retail | 2022 |
| HSB Portobello Limited | Wholesale & retail | 2022 |
| Hscf Canterbury LP | | 2007 |
| Hscm Properties Limited | Real estate | 2019 |
| Hsft Ltd | Real estate | 2021 |
| Hsgp Investments Ltd | Professional & scientific | 2013 |
| HSI Ltd | Construction | 2017 |
| Hsic Holdings LP | | 2022 |
| HSL Messaging Limited | Information & communication | 1999 |
| HSM Projects Ltd | Administrative & support | 2026 |
| HSP Software LP | | 2019 |
| Hsre Investment Partnership UK GP Limited | Financial services | 2019 |
| Hsre Investment Partnership UK, L.P. | | 2019 |
| HT PHC Edinburgh Ltd | Professional & scientific | 2021 |
| HT Project Odessa LP | | 2016 |
| Htbe Ltd | Arts & recreation | 2019 |