| Hamilton Desserts Ltd | Wholesale & retail | 2019 |
| Hamilton Discount Ltd | Wholesale & retail | 2026 |
| Hamilton DRY Cleaners Limited | Other services | 2015 |
| Hamilton Electrical Supplies Limited | Wholesale & retail | 1989 |
| Hamilton Foot Clinic Limited | Other services | 2015 |
| Hamilton Gateside Barbers Ltd | Other services | 2022 |
| Hamilton Glow Tanning Ltd | Other services | 2018 |
| Hamilton Heating and GAS Ltd | Construction | 2023 |
| Hamilton Ironing Services Limited | Other services | 2023 |
| Hamilton Laundry Services Limited | Other services | 2023 |
| Hamilton Legal Ltd | Professional & scientific | 2021 |
| Hamilton Lettings Limited | Real estate | 2016 |
| Hamilton Licensed Grocers Ltd | Real estate | 2007 |
| Hamilton Luxury Laundry Services Ltd | Other services | 2024 |
| Hamilton Phoneshop Ltd | Other services | 2016 |
| Hamilton Physiotherapy Ltd | Health & social care | 2026 |
| Hamilton Pilates Studio Ltd | Arts & recreation | 2023 |
| Hamilton Property Services Ltd | Construction | 2024 |
| Hamilton Property's (SCO) Limited | Administrative & support | 2023 |
| Hamilton Rugby Bar Limited | Other services | 2018 |
| Hamilton Safe Storage Ltd | Transport & logistics | 2025 |
| Hamilton Surveys Ltd. | Professional & scientific | 1997 |
| Hamilton Tech Group Ltd | Information & communication | 2019 |
| Hamilton Technologies Limited | Information & communication | 2024 |
| Hamilton Trust Company Limited | | 2023 |
| Hamza Hamilton Ltd | Wholesale & retail | 2012 |
| Handyman Maintenance Services Ltd | Administrative & support | 2023 |
| Hanlon Power Solutions Ltd | Manufacturing | 2019 |
| Hanson Green Limited | | 2004 |
| Happy Dogs Boarding Ltd | Other services | 2023 |
| Happy Tots Adventures Ltd | Arts & recreation | 2026 |
| Harbour International Trust Company Limited | | 2023 |
| Harbour IV (UK) Ltd | Wholesale & retail | 2026 |
| Harbour IV Ltd | Wholesale & retail | 2026 |
| Hardies Howff Limited | Hospitality | 2014 |
| Harishyam Chandegra Ltd | Information & communication | 2017 |
| Harleys Rutherglen Ltd | Hospitality | 2026 |
| Harlock Consulting Services Ltd | Professional & scientific | 2017 |
| Harmony Leisure Group Ltd | Administrative & support | 2018 |
| Harpers Barbers Ltd | Real estate | 2019 |
| Harris 4X4 Limited | Wholesale & retail | 2026 |
| Harris Equine Ltd | Agriculture & fishing | 2021 |
| Harris Partners Limited | Professional & scientific | 2009 |
| Harte Hospitality Ltd | Hospitality | 2026 |
| Harva Building Services Ltd | Manufacturing | 2024 |
| HAS Hamilton Ltd | Wholesale & retail | 2016 |
| Hasham (Scotland) Limited | Real estate | 2015 |
| Haslam Racing Limited | Arts & recreation | 2010 |
| HAT Property Developments Ltd | Real estate | 2019 |
| Haughhead Farm Limited | Agriculture & fishing | 1992 |
| Haus of Beauty Ltd | Other services | 2018 |
| Havella Foot Care Ltd | Health & social care | 2025 |
| Havenxperience Ltd | Arts & recreation | 2024 |
| Hawkhead Developments Ltd. | Real estate | 2003 |
| HAY Cassels Limited | Professional & scientific | 2010 |
| Hbjd Properties Ltd | Real estate | 2024 |
| HC Care Ltd | Health & social care | 2016 |
| HD Legal Ltd | Other services | 2022 |
| HDM Estates Ltd | Real estate | 2021 |
| Headingley Group Limited | Real estate | 2021 |
| Healthcare & Medicine Ltd | Health & social care | 2025 |
| Healthvale Ltd | Real estate | 2026 |
| Healthy Wellness at Work Ltd | Health & social care | 2021 |
| Heather's Bespoke Care Ltd | Health & social care | 2024 |
| Heathfield Care and Residential Homes Limited | Health & social care | 2011 |
| Heating Repairs Glasgow Ltd | Construction | 2024 |
| Heatsave Ltd | Construction | 2025 |
| Helix Medical Services Limited | Health & social care | 2025 |
| Helping Industry Recruit Experts Ltd | Administrative & support | 2025 |
| Hemco Holdings Limited | Real estate | 2016 |
| Henderson Financial Consultancy Limited | Financial services | 2016 |
| Henderson Rebar (UK) Limited | Construction | 2006 |
| Hendry Brothers (Scotland) Limited | Construction | 2019 |
| Henry Brooke Racing Ltd | Arts & recreation | 2018 |
| Henry Hughes Ltd. | Wholesale & retail | 2002 |
| Herman Blackthorn Ltd | Professional & scientific | 2024 |
| Hermanas Hair & Beauty Limited | Administrative & support | 2019 |
| Hermon Holdings Limited | | 2023 |
| Hestian Holdings Ltd | Real estate | 2019 |
| HEY Baby Boutique Ltd | Wholesale & retail | 2018 |
| HF 2023 Limited | Hospitality | 2016 |
| HFB Homes Ltd | Real estate | 2025 |
| HI TEC Plumbing and Heating Limited | Construction | 2019 |
| Hidden Horizons Travel Ltd | Arts & recreation | 2020 |
| Highgrove Motorhome Hire Limited | Administrative & support | 2021 |
| Highland Fire Protection Ltd | Other services | 2024 |
| Highland Style Ltd | Wholesale & retail | 2026 |
| Highland Videography Ltd | Information & communication | 2026 |
| Hill Place Limited | Real estate | 2025 |
| Hillburn Contracts Ltd | Construction | 2010 |
| Hillhouse Spices Ltd | Hospitality | 2023 |
| Hillside Auckengill Limited | Hospitality | 2022 |
| HIM Alone 7 Limited | Health & social care | 2026 |
| Hiper Limited | Information & communication | 1997 |
| HJF Hamilton Ltd | Hospitality | 2026 |
| HK Smile Care Ltd | Health & social care | 2024 |
| HKS Electrical Ltd | Construction | 2025 |
| HLN Construction Ltd | Construction | 2019 |
| Hodge Agriculture Limited | Administrative & support | 2016 |
| Hodge Plant Limited | Administrative & support | 2000 |