| Gravity Feed Slicing Machine Company Limited(The) | Real estate | 1935 |
| Green Zone Design Ltd | Administrative & support | 2003 |
| Greenbank Design Limited | Professional & scientific | 2025 |
| Greenvale Projects Ltd | Construction | 2026 |
| GRH Roofing & Construction Limited | Construction | 2025 |
| GRO Studio London Ltd | Professional & scientific | 2020 |
| Guttersnipe (Sussex) Ltd | Administrative & support | 2017 |
| H B Surveys Limited | Professional & scientific | 2007 |
| H&L Wellness Hospitality Ltd | Hospitality | 2024 |
| Hall Fire & Safety Consultants Ltd | Professional & scientific | 2017 |
| Hampshire Equipment Limited | Wholesale & retail | 2003 |
| Heatherwood House Estate Ltd. | Administrative & support | 1998 |
| Heathfield Green (Midhurst) Limited | Households | 1977 |
| Helen Salmon Ltd | Professional & scientific | 2006 |
| Heronshaws Limited | Construction | 1999 |
| Hesketh Antiques Ltd | Wholesale & retail | 2024 |
| Hessian & Clay Ltd | Households | 2015 |
| HGH Eins Ltd | Financial services | 2020 |
| High Lane Haslemere Limited | Construction | 2025 |
| High Path Estates Limited | Households | 1976 |
| Highview Living Ltd | Real estate | 2016 |
| Hm-Directcare Ltd | Wholesale & retail | 2026 |
| HNS Investment Holding Limited | Financial services | 2024 |
| Home Counties Land Management Ltd | Agriculture & fishing | 2012 |
| Hooli Ltd | Professional & scientific | 2014 |
| Hotston Consultancy Limited | Professional & scientific | 2024 |
| Hunt Developments (UK) Limited | Manufacturing | 1998 |
| Hunt Labs Limited | Professional & scientific | 2010 |
| Hymettus Ltd | Professional & scientific | 2006 |
| Ictek Empowerment Hub Ltd | Education | 2025 |
| Inigo Wren Ltd | Professional & scientific | 2026 |
| Inreach Window Cleaning Ltd | Administrative & support | 2026 |
| Insight Project Consulting Limited | Administrative & support | 2015 |
| IQ UK Homes Limited | Real estate | 2015 |
| IQ UK Projects Limited | Real estate | 2016 |
| IQ UK Properties Limited | Real estate | 2015 |
| Irevelar Limited | Financial services | 2009 |
| Isobel Hobbs Ltd | Arts & recreation | 2021 |
| J.D.S Haulage Ltd | Transport & logistics | 2025 |
| Jacaranda Catering Limited | Hospitality | 2007 |
| Jasmine Cottage (Upwaltham) Limited | Hospitality | 2017 |
| Jason Mayhew Gundogs Limited | Arts & recreation | 2019 |
| Jcsmarketplace Limited | Wholesale & retail | 2026 |
| Jdpg Consulting Limited | Professional & scientific | 2026 |
| JG Pubs Ltd | Hospitality | 2022 |
| JIM Hills (Billingshurst) Limited | Wholesale & retail | 1975 |
| Jintana Flowers Ltd | Wholesale & retail | 2022 |
| JMG Heating and Mechanical Limited | Construction | 2018 |
| JML Accountancy Limited | Professional & scientific | 2012 |
| John Britten Limited | Construction | 1959 |
| John Ross JR Limited | Manufacturing | 2000 |
| JON Bailey Heating Limited | Construction | 2009 |
| Joseph Allnatt Centres Limited | Hospitality | 1936 |
| JPG (Agricultural Services) Ltd | Construction | 2022 |
| JPG Building & Groundworks Ltd | Construction | 2011 |
| Juliana Riviera Limited | Manufacturing | 2024 |
| Justin Fletcher Maintenance Ltd | Households | 2026 |
| JW Commercial Decorators Ltd | Construction | 2021 |
| Kaizen Polo Ltd | Transport & logistics | 2025 |
| Karin Dunbar Design Ltd | Administrative & support | 2014 |
| Kate Boxer Ltd | Arts & recreation | 2023 |
| Kerrytype Limited | Administrative & support | 1980 |
| Kick a Habit Limited | Education | 2016 |
| Kivira Properties and Development Ltd | Real estate | 2025 |
| KK Sutton Limited | Manufacturing | 2006 |
| Knockhundred Coaching Ltd | Professional & scientific | 2023 |
| Kramba Consulting Ltd | Professional & scientific | 2024 |
| Kurland Park Polo Limited | Arts & recreation | 2025 |
| KV Build Limited | Construction | 2021 |
| L & a Matthews & Sons Ltd | Households | 2019 |
| LA Lupe Ltd | Hospitality | 2025 |
| LA Mediterranea Brewing Company Ltd | Manufacturing | 2024 |
| Lams 185 Limited | Hospitality | 2026 |
| Laney Industries Ltd | Manufacturing | 2024 |
| Launch Emea Limited | Information & communication | 2025 |
| Leith Watson Limited | Construction | 1960 |
| Libra Analysis Limited | Information & communication | 1994 |
| LIM Estates Ltd | Real estate | 2018 |
| Limeoak International Limited | Manufacturing | 2005 |
| Lines and Nodes Limited | Information & communication | 2024 |
| Little Explorers West Sussex Ltd | Education | 2021 |
| LOC & Key Properties Ltd | Real estate | 2025 |
| Lomax Developments Ltd | Real estate | 2016 |
| Long Lane 1 Hold Co Ltd | Financial services | 2024 |
| Long Lane 1 Ltd | Hospitality | 2024 |
| Long Lane 2 Ltd | Hospitality | 2024 |
| Long Lane 3 Ltd | Hospitality | 2024 |
| Loop Design (UK) Limited | Information & communication | 2006 |
| Lovely Dark Deep Productions Limited | Arts & recreation | 2025 |
| M and C Training Limited | Administrative & support | 2015 |
| Mack Operations Limited | Professional & scientific | 2012 |
| Maclear Consulting Limited | Information & communication | 2023 |
| Marmelo Coffee Limited | Hospitality | 2025 |
| Marshall Engineering (Midhurst) Limited | Professional & scientific | 2016 |
| Marshall Engineering Holdings Limited | Real estate | 2024 |
| Marshall's Window Cleaning Ltd | Administrative & support | 2008 |
| Matt Stott Stage Engineering Limited | Professional & scientific | 2025 |
| Mayfield Professional Services Limited | Professional & scientific | 2024 |
| Mddb Ltd | Construction | 2019 |
| Meadrock (Hampshire) Limited | Wholesale & retail | 2025 |