| Haslemere Tuning Limited | Wholesale & retail | 2008 |
| Haulage Logistics Ltd | Transport & logistics | 2016 |
| Have-A-Go Limited | Mining & quarrying | 1998 |
| Haven Residents Company Limited | Households | 2002 |
| Havenbury Management Limited | Households | 1986 |
| Haverfords Accountants Limited | Professional & scientific | 2013 |
| Haversham House Freeholders Limited | Administrative & support | 2008 |
| Hawken Associates Ltd. | Arts & recreation | 1998 |
| Hawks Hill House Management Company Limited | Households | 2005 |
| Hawthorn Editorial Services Ltd | Information & communication | 2023 |
| Hawthorn Gardens (Caterham) Management Company Limited | Households | 2011 |
| Hawthorn Media Ltd | Professional & scientific | 2020 |
| Hayami Jewellery Ltd | Wholesale & retail | 2023 |
| Head to TOE Limited | Health & social care | 2008 |
| Head to TOE Property Limited | Real estate | 2014 |
| Head Ways Psychology Ltd | Health & social care | 2015 |
| Heads UP! Neuro-Rehab Limited | Other services | 2004 |
| Healing Alternatives Limited | Wholesale & retail | 2019 |
| Hearns Specialised Joinery Limited | Manufacturing | 1984 |
| Heartwork Coffee Limited | Hospitality | 2020 |
| Heartwork Coffee M Limited | Hospitality | 2022 |
| Heartwork Outsourcing Solutions Limited | Administrative & support | 2026 |
| HEAT2PLUMB Ltd | Construction | 2023 |
| Heathside (Tadley) Residents Company Limited | Households | 1995 |
| Heathwood (Tadworth) Ltd. | Households | 1977 |
| Heavenly Whites Ltd | Other services | 2024 |
| Hechlehr Ltd | Professional & scientific | 2022 |
| Hector Paterson & Co Limited | Wholesale & retail | 2014 |
| Hedj Limited | Real estate | 2024 |
| Hellokorero Limited | Administrative & support | 2020 |
| Hendrick and Hyde Limited | Professional & scientific | 2023 |
| Hendrick US Limited | Real estate | 2015 |
| Henry LEE Limited | Health & social care | 2002 |
| Henry Maxwell Limited | Manufacturing | 1999 |
| Henry Walter Martin Limited | Real estate | 2023 |
| Heppner Capital Ltd | Financial services | 2019 |
| HER Energetic Rhythm Ltd | Wholesale & retail | 2026 |
| HER Health Hub Ltd | Health & social care | 2025 |
| Heras Assets Limited | Financial services | 2022 |
| Hercules Trading Limited | Households | 1982 |
| Heritage Building Service (Surrey) Limited | Administrative & support | 2015 |
| Heritage Farms Limited | Agriculture & fishing | 1996 |
| Heyland & Spratt Limited | Construction | 2007 |
| Heymann Ltd | Administrative & support | 2026 |
| HFL Property Services Ltd | Agriculture & fishing | 2022 |
| HI Tech Paints Limited | Construction | 2003 |
| Hibiscus Holistic Massage Limited | Health & social care | 2010 |
| Hickey Business Consulting Limited | Real estate | 2015 |
| Hicks&Haq Ltd | Hospitality | 2025 |
| High Cedars (Reigate) Freehold Company Ltd | Households | 2009 |
| High Cedars (Reigate) Management Company Limited | Households | 2006 |
| High Meadow Management Company Limited | Households | 1985 |
| High Road Restaurants Group Bidco Limited | Financial services | 2016 |
| High Road Restaurants Group Holdco Limited | Financial services | 2016 |
| Highacre Grange Management Company Limited | Households | 1996 |
| Highdown Management Company Limited | Households | 2006 |
| Higher Hacknell Farm Limited | Professional & scientific | 1950 |
| Highfield Management Company Limited | Households | 2017 |
| Highgate Brasserie Limited | Hospitality | 2025 |
| Hill House Solutions Limited | Professional & scientific | 2006 |
| Hill Park Management Company Limited | Households | 1994 |
| Hillcote Developments (ELM) Limited | Construction | 2025 |
| Hillside Financial Planning Limited | Professional & scientific | 2020 |
| Hilton's Electrical Limited | Construction | 2016 |
| Hitherwood Close Management Company Limited | Households | 2018 |
| HJ Public Relations Ltd | Professional & scientific | 2020 |
| HJC Consultancy Ltd. | Financial services | 2012 |
| HJP Wealth Management Limited | Financial services | 2016 |
| HJS Construction Limited | Construction | 2007 |
| HMS Innovations Ltd | Manufacturing | 2022 |
| Hncn Consulting Ltd | Professional & scientific | 2019 |
| HO' Kitchen Ltd | Hospitality | 2026 |
| HOA Beauty Ltd | Other services | 2020 |
| Hobbs Court Management Company (Yapton) Limited | Other services | 2014 |
| Hodge Rainsbury Limited | Professional & scientific | 2015 |
| Holding Group Construct Limited | Construction | 2017 |
| Holistic Harmony Community Interest Company | Education | 2009 |
| Holistic Health and Social Care Ltd | Health & social care | 2023 |
| Holmbury Enterprises Limited | Professional & scientific | 2012 |
| Holmestores Ltd | Hospitality | 2021 |
| Holmfield Place Residents Company Limited | Households | 2006 |
| Holmpc Ltd | Information & communication | 2005 |
| Holmwood Counselling Limited | Health & social care | 2002 |
| Holmwood Facilities Ltd | Administrative & support | 2025 |
| Holtye Road (East Grinstead) Management Company Limited | Households | 2009 |
| Homeguard Driveways&Landscapes Ltd | Construction | 2026 |
| Homeguard Roofing Ltd | Construction | 2024 |
| Homelands Lets Limited | Real estate | 2011 |
| Hooktone Limited | Agriculture & fishing | 1990 |
| Hoolock Consulting Limited | Other services | 2015 |
| Hoptek Automotive Ltd | Wholesale & retail | 2025 |
| Horizon Tree & Hedge Care Ltd | Agriculture & fishing | 2024 |
| Horley (Woodside) Management Limited | Households | 1991 |
| Horley Road Residents Co Ltd | Households | 2022 |
| Hornbeam Close (Epsom Downs) Management Company Limited | Households | 2016 |
| Horsham Butchery Ltd | Wholesale & retail | 2024 |
| Horsham Cove Limited | Professional & scientific | 2021 |
| Horsielands Farm Ltd | Real estate | 2022 |
| Horsley Property Company Ltd | Real estate | 2021 |
| Hortigrow Limited | Professional & scientific | 2021 |