| FLY Girl Productions Limited | Arts & recreation | 2019 |
| Frazer Plumbing & Heating Services Ltd | Construction | 2014 |
| Freestyle Delivery Management Limited | Information & communication | 2025 |
| Fruitmedia Limited | Administrative & support | 2004 |
| FS101 Limited | Professional & scientific | 2025 |
| Fusion Holidays Limited | Administrative & support | 2013 |
| Fuzzy Balls Ltd | Arts & recreation | 2013 |
| Fyrova Ltd | Financial services | 2026 |
| G.D. Precision (Lunds) Limited | Financial services | 2026 |
| Geodime Limited | Professional & scientific | 2005 |
| Global Quality Compliance Limited | Information & communication | 2010 |
| Good Ground Childcare Ltd | Health & social care | 2024 |
| GR8 Engineering Limited | Manufacturing | 2010 |
| Gratwicke House Freehold Limited | Financial services | 2024 |
| Gresham Blake Studios Ltd | Manufacturing | 2023 |
| GSL Projects Limited | Construction | 2019 |
| Hair @ Serenity UK Ltd | Other services | 2011 |
| Halo Hair Design Limited | Other services | 2006 |
| Harrison Sea Limited | Professional & scientific | 2025 |
| Hawkins PM Ltd | Professional & scientific | 2015 |
| Heene Homes Limited | Construction | 2019 |
| HI Handy IAN Ltd | Construction | 2025 |
| Highgrove Construction & Development Limited | Construction | 2015 |
| Highgrove Housing Limited | Real estate | 2019 |
| Hills & Peeks Secretaries Limited | Professional & scientific | 2005 |
| Hope Martin Property Solutions Ltd | Real estate | 2024 |
| Huddle Recruitment Ltd | Administrative & support | 2023 |
| Human Production Music Ltd | Information & communication | 2024 |
| Hunter Simulation Limited | Professional & scientific | 2014 |
| Hygiene Chemicals Limited | Wholesale & retail | 1996 |
| IAN Hart Funeral Services Limited | Other services | 2005 |
| IAN Hart Masonry Services Limited | Manufacturing | 2022 |
| Impact Labels Limited | Manufacturing | 2003 |
| Independent Power Purchasing Ltd | Wholesale & retail | 2013 |
| Indigo Pharma Services Limited | Professional & scientific | 2013 |
| Insure for Travel Limited | Financial services | 2006 |
| Intaskin Limited | Wholesale & retail | 2025 |
| IS Profectus Ltd | Information & communication | 2021 |
| J M Completions Limited | Construction | 2003 |
| JAK Medical Consulting Ltd | Health & social care | 2022 |
| JCT Project Services Limited | Construction | 2011 |
| JG Events Services Limited | Information & communication | 2020 |
| Jigsaw Talent Solutions Ltd | Professional & scientific | 2018 |
| JM Exteriors Limited | Administrative & support | 2024 |
| Jordan Consultancy Limited | Administrative & support | 2009 |
| JPB Legal Services Limited | Professional & scientific | 2018 |
| Julian Wilkins Surveyors Limited | Professional & scientific | 2006 |
| K & R Property Investors Limited | Construction | 2023 |
| K & R Property Maintenance Limited | Construction | 2025 |
| K & R Property Rentals Limited | Real estate | 2024 |
| K P Mcgovern Limited | Construction | 2005 |
| K&J Heating Limited | Construction | 2021 |
| Kanallan Ltd | Construction | 2021 |
| Kandl Consultancy Ltd | Professional & scientific | 2023 |
| Keco Support Ltd | Professional & scientific | 2025 |
| Kelvin DRY Cleaners Limited | Other services | 2014 |
| Kevin Welling Limited | Construction | 2009 |
| Kingsbury Press Ltd | Information & communication | 2026 |
| KIO Limited | Information & communication | 2024 |
| KPS Data Solutions Limited | Financial services | 2020 |
| Law Scaffolding (Sussex) Limited | Construction | 2008 |
| Lettings Complete Limited | Real estate | 2014 |
| Lime Tree Close (East Preston) Management Limited | Households | 2020 |
| Limebear Projects Limited | Information & communication | 2018 |
| Lola Loves JIM Limited | Information & communication | 2025 |
| Loughrey Holdings Ltd | Financial services | 2025 |
| Luckhurst Architecture Limited | Professional & scientific | 2020 |
| Lund Bros & Co Ltd. | Manufacturing | 1983 |
| Lund Bros Group Ltd | Financial services | 2025 |
| M a Barnes Ltd | Other services | 2013 |
| Malo Group Ltd | Arts & recreation | 2026 |
| Marlborough Carpentry Contractors Limited | Manufacturing | 2007 |
| Marshall Carpets Limited | Wholesale & retail | 1997 |
| Marthe Armitage Prints Limited | Manufacturing | 2015 |
| Mash Design House Ltd | Professional & scientific | 2025 |
| Mavrix Cricket Limited | Arts & recreation | 2024 |
| Media Launch Limited | Professional & scientific | 2024 |
| MGH Autos Ltd | Wholesale & retail | 2020 |
| Minotaur Development Ltd | Information & communication | 2017 |
| Mistral Construction Limited | Construction | 2022 |
| Morris Family Holdings | Financial services | 2019 |
| MR Deakin Ltd | Wholesale & retail | 2024 |
| MRK Draughting Services Limited | Professional & scientific | 2020 |
| Nano Digital Limited | Information & communication | 2023 |
| Naomi Johnson Limited | Information & communication | 2026 |
| NK Formwork Limited | Construction | 2002 |
| NO. 109 the Wellness Medical Ltd | Health & social care | 2023 |
| Notsa Aviation Limited | Wholesale & retail | 2023 |
| Nu-Image Hairdressing Limited | Other services | 2015 |
| O'Brien Financial Services Limited | Professional & scientific | 2025 |
| Oast Park Holdings LLP | | 2013 |
| Oggetti 90 Ltd | Professional & scientific | 2024 |
| One Finance Group Limited | Financial services | 2022 |
| Ooba Creative Limited | Arts & recreation | 2006 |
| Otherworld Ltd | Manufacturing | 2024 |
| OUT of the ARK Group Limited | Information & communication | 2018 |
| OUT of the ARK Limited | Information & communication | 2002 |
| Oyster Estates Limited | Real estate | 2009 |
| P B H Technical Services Limited | Professional & scientific | 1999 |
| Pattalum Holmes Limited | Real estate | 2017 |