| HI FI Corner (Glasgow) Limited | Wholesale & retail | 1983 |
| HI Solution LP | | 2016 |
| HI Tea Bridge Ltd | Hospitality | 2022 |
| HI Tech Management LP | | 2015 |
| Hi-Tech Global Solutions L.P. | | 2015 |
| Hi-Tech One International LP | | 2016 |
| HI5 LED Ltd | Information & communication | 2026 |
| Hibbards Ltd | Administrative & support | 2015 |
| HIBEES1875 Ltd. | Other services | 2020 |
| Hibernian Community Foundation Limited | Education | 2008 |
| Hibernian Property LLP | | 2022 |
| Hibernian Supporters Limited | Arts & recreation | 2015 |
| Hibiki Limited | Hospitality | 2018 |
| Hibiscus KIN Ltd | Hospitality | 2023 |
| Hibiscuskennedy | Administrative & support | 2025 |
| Hicell LP | | 2017 |
| Hickory Co-Investment Intermediate Limited Partnership | | 2005 |
| Hickory Portfolio Fund Limited Partnership | | 2005 |
| Hickory Quoted Intermediate Limited Partnership | | 2005 |
| Hidalgo Clyne Limited | Financial services | 2026 |
| Hidcon Limited | Administrative & support | 2018 |
| Hidden Door Charitable Company Ltd | Arts & recreation | 2020 |
| Hidden Garden LP | | 2015 |
| Hidden Himalayas Group Ltd | Wholesale & retail | 2025 |
| Hidden Scotland Ltd | Administrative & support | 2017 |
| Hiddwork Impex LP | | 2011 |
| Hide&Tale Ltd | Manufacturing | 2024 |
| Hierophant Limited | Professional & scientific | 2022 |
| HIF Core Infrastructure LP | | 2013 |
| HIF I Founder Partner LP | | 2011 |
| HIF II Founder Partner LP | | 2017 |
| Hifi Ventures Limited | Hospitality | 2024 |
| Higgins/Burgess Limited | Transport & logistics | 2000 |
| High Cairn Wind Farm Limited | Real estate | 2018 |
| High Caste LP | | 2017 |
| High Class Enterprises Ltd | Hospitality | 2023 |
| High Management Services L.P. | | 2012 |
| High Mark Farming Limited | Agriculture & fishing | 2016 |
| High Point Invest LP | | 2014 |
| High Rise Solutions Ltd | Construction | 2010 |
| High Sharing Opportunity & Co | | 2007 |
| High Speed DPD Ltd | Transport & logistics | 2018 |
| High Speed Metals LP | | 2016 |
| High Street Apartment Hotel Group Ltd | Real estate | 2019 |
| High Street Residence Ltd | Real estate | 2021 |
| High Structures LP | | 2013 |
| High Style Inter LP | | 2012 |
| High Tide Studio Ltd | Information & communication | 2018 |
| High Trade Import-Export L.P. | | 2012 |
| High Voltage Instruments Ltd | Professional & scientific | 2007 |
| High Yield Goods LP | | 2015 |
| High Yield System LP | | 2015 |
| High-Tech Solutions LP | | 2010 |
| Highbridge International LP | | 2012 |
| Highbroom Consulting Ltd | Health & social care | 2019 |
| Highcliffe Services & Co | | 2000 |
| Higher Link International Culture, Communication & Trade Ltd | Wholesale & retail | 2022 |
| Higher Purpose Ltd | Wholesale & retail | 2025 |
| Higher Talent Global Ltd | Administrative & support | 2026 |
| Highfive Removals & Storage (Scotland) Ltd | Transport & logistics | 2019 |
| Highgate Hydra Investments Ltd | Financial services | 2026 |
| Highgate Invest LP | | 2013 |
| Highhouse Estates Limited | Real estate | 2011 |
| Highhouse Self Storage Ltd | Real estate | 2020 |
| Highland & Universal Land Limited | Real estate | 2016 |
| Highland Aerial Analytics Ltd | Information & communication | 2025 |
| Highland Alliance L.P. | | 2012 |
| Highland and Universal Management Limited | Administrative & support | 2014 |
| Highland and Universal Securities (NO.2) Limited | Financial services | 2009 |
| Highland Blending Company Limited | Professional & scientific | 1996 |
| Highland Broadband Networks Holdco Limited | Financial services | 2025 |
| Highland Broadband Networks Limited | Information & communication | 2015 |
| Highland Broadband Networks Midco Limited | Financial services | 2025 |
| Highland Capital Partners Limited | Professional & scientific | 2009 |
| Highland Centre Ltd. | Real estate | 2004 |
| Highland Code Limited | Professional & scientific | 2026 |
| Highland Commerce Ltd | Wholesale & retail | 2026 |
| Highland Data Insights Ltd | Information & communication | 2024 |
| Highland Dental Technologies Ltd | Health & social care | 2014 |
| Highland Developments Limited | Construction | 1980 |
| Highland Fling Nursery Limited | Other services | 2022 |
| Highland Forge Ltd | Manufacturing | 2022 |
| Highland GP 1 LLP | | 2020 |
| Highland Habitat Limited | Real estate | 2024 |
| Highland Haul & Hold Limited | Construction | 2023 |
| Highland HV Solutions Ltd | Construction | 2025 |
| Highland Lodge Estate Ltd | Real estate | 2015 |
| Highland Partners LLP | | 2013 |
| Highland Payroll Services Limited | Administrative & support | 2015 |
| Highland Polishing Ltd | Administrative & support | 2019 |
| Highland Products Limited | Financial services | 2004 |
| Highland Properties (Scotland) Limited | Real estate | 2006 |
| Highland Properties Developments Limited | Real estate | 2001 |
| Highland Properties Group (Holdings) Limited | Real estate | 2022 |
| Highland Properties Group Limited | Real estate | 1996 |
| Highland Reserve Ltd | Professional & scientific | 2022 |
| Highland Retreats Limited | Real estate | 2024 |
| Highland Scramble Limited | Administrative & support | 2020 |
| Highland Sports Service Limited | Wholesale & retail | 2016 |
| Highland Tours & Travels Ltd | Administrative & support | 2022 |