| Highland Vineyard Capital SLP | | 2005 |
| Highland Wind Limited | Energy | 2020 |
| Highland Wireless & IT Solutions Ltd | Information & communication | 2017 |
| Highlander Coaches Ltd | Transport & logistics | 2022 |
| Highlands Cashmere Ltd | Wholesale & retail | 2022 |
| Highlands Franchise Ltd | Professional & scientific | 2025 |
| Highlands International Ltd | Manufacturing | 2025 |
| Highlands Logistics Limited | Transport & logistics | 2025 |
| Highlands Miniatures Ltd | Manufacturing | 2022 |
| Highlands Provision LP | | 2016 |
| Highlands Renewable Energies L.P. | | 2013 |
| Highlands Stage Promotions Associates | | 1994 |
| Highlands Trade & Commerce Partners LP | | 2011 |
| Highlandson Limited | Wholesale & retail | 2025 |
| Highlex Transit L.P. | | 2015 |
| Highlight Housing Limited | Real estate | 2024 |
| Highlight Investment Management LLP | | 2013 |
| Highlight Property Group Ltd | Real estate | 2025 |
| Highlight Proptech Limited | Information & communication | 2026 |
| Highline Roofing and Building Ltd | Construction | 2025 |
| Highmark Services Collective Ltd | Arts & recreation | 2026 |
| Highpoint Films Limited | Construction | 2000 |
| Highseas Corporation L.P. | | 2012 |
| Highup Trade LP | | 2014 |
| Highway Import/Export L.P. | | 2012 |
| Hijabi London Limited | Wholesale & retail | 2025 |
| Hikaru Teck LP | | 2019 |
| HIL (Nominees) Limited | Administrative & support | 2012 |
| Hildiberg Design Studio Ltd | Professional & scientific | 2025 |
| Hill Family Trustees Limited | Extraterritorial | 2012 |
| Hill Medical Limited | Health & social care | 2013 |
| Hill of Skurron Wind Energy Limited | Energy | 2025 |
| Hill Orthodontics Limited | Health & social care | 2010 |
| Hill Road SP | | 2001 |
| Hill Street Developments Edinburgh Limited | Construction | 2025 |
| Hill Street Property Company Limited | Administrative & support | 2021 |
| Hill West Development LP | | 2016 |
| Hillado Holdings Ltd | Real estate | 2017 |
| Hillblack Ltd | Professional & scientific | 2010 |
| Hillburn Properties Limited | Professional & scientific | 2002 |
| Hillend Leisure Ltd | Construction | 2019 |
| Hillend Valley Homes Ltd | Real estate | 2025 |
| Hillford Worldwide L.P. | | 2008 |
| Hillfort Enterprise LP | | 2015 |
| Hillforta LP | | 2016 |
| Hilliard Heating Solutions Ltd | Construction | 2014 |
| Hillmony Trade LP | | 2015 |
| Hillpark Medical Ltd | Health & social care | 2022 |
| Hillpark Medical Services Limited | Health & social care | 2015 |
| Hills Meadow Limited | Professional & scientific | 1996 |
| Hillsboro Industries L.P. | | 2016 |
| Hillsford Development LP | | 2012 |
| Hillside Agency Scotland Ltd | Professional & scientific | 2025 |
| Hillside Evolution Limited | Information & communication | 2021 |
| Hillside Trade LP | | 2015 |
| Hilltop Associates LP | | 2018 |
| Hilluck Limited | Wholesale & retail | 2016 |
| Hillvale Dynamic LP | | 2016 |
| Hillvale Today LP | | 2016 |
| Hilly Green Ltd | Hospitality | 2023 |
| Hilsone Management LP | | 2011 |
| Hilton House Limited | Construction | 2016 |
| Hilton Lodge Care Limited | Health & social care | 2023 |
| Hilton Power LP | | 2014 |
| Hilu Ltd | Wholesale & retail | 2016 |
| Himalayan Centre Edinburgh Limited | Other services | 2012 |
| Himalayan G4 Limited | Hospitality | 2021 |
| Himalayan Tibetan Cafe Ltd | Hospitality | 2023 |
| Himawari Ltd | Professional & scientific | 2026 |
| Himmel Property Limited | Households | 2023 |
| Hindles Limited | Professional & scientific | 2011 |
| Hineni Infrastructure Consulting Ltd | Manufacturing | 2023 |
| Hinterland Studio Ltd | Professional & scientific | 2025 |
| HIP II International L.P. | | 2007 |
| HIP International L.P. | | 2005 |
| Hipep VII (AIF) Asia Pacific Fund L.P. | | 2014 |
| Hipep VII (AIF) Emerging Markets Fund L.P. | | 2014 |
| Hipep VII (AIF) Europe Fund L.P. | | 2014 |
| Hipep VII (AIF) Partnership Fund L.P. | | 2014 |
| Hipep Viii Partnership AIF L.P. | | 2016 |
| Hipp Consult LP | | 2023 |
| Hippo IT Management Limited | Information & communication | 2016 |
| Hiprobuild Contracts Ltd | Construction | 2022 |
| Hire Kind Ltd | Information & communication | 2025 |
| Hireway Rentals Ltd | Administrative & support | 2016 |
| Hiring Group Limited | Administrative & support | 2015 |
| Hiroki Tech Ltd | Professional & scientific | 2026 |
| Hirschfeld Scottish Limited Partnership | | 2005 |
| Hisashi Ltd | Information & communication | 2024 |
| Hislop IT Solutions Limited | Information & communication | 2008 |
| Hisolution Rope Access Edinburgh Ltd | Construction | 2019 |
| Historic Churches Scotland | Arts & recreation | 1996 |
| Historic Edinburgh Tours Limited | Administrative & support | 2013 |
| Historic Environment Scotland Enterprises Limited | Wholesale & retail | 2015 |
| Historic Lothian Protection & Development Limited | Professional & scientific | 2002 |
| Historic Scotland Foundation | Other services | 2001 |
| Historytelling Ltd | Professional & scientific | 2020 |
| Histwork Impex LP | | 2015 |
| HIT Entertainment Employee (UK) Limited Partnership | | 2006 |
| HIT Entertainment MIP Employee Participation Limited Partnership | | 2010 |