| European Sino Corporation Limited | Manufacturing | 1997 |
| Euroscan Limited | Wholesale & retail | 2016 |
| Experience Modi Ltd | Professional & scientific | 2023 |
| Farm Close Management Company Limited | Households | 2020 |
| Felix Todd's Chess Venture Ltd | Professional & scientific | 2022 |
| Fennes Property Ltd | Real estate | 2019 |
| Fentons Estate Agents Limited | Real estate | 2025 |
| Fibrepricing.Com Ltd | Information & communication | 2023 |
| Field & Hound Ltd | Other services | 2026 |
| Fieldhaven Flats Management Company Limited | Households | 1989 |
| Fields Total Cleaning Ltd | Administrative & support | 2016 |
| Fine Edge Brickwork Ltd | Construction | 2026 |
| First Avenue Management (Frinton) Limited | Administrative & support | 1979 |
| Flyleaf Ltd | Manufacturing | 2019 |
| Flystatic Ltd | Information & communication | 2016 |
| Food Miles Ltd | Wholesale & retail | 2022 |
| Forensic Engineering Services Limited | Professional & scientific | 2025 |
| Formoy Roofing Limited | Construction | 2012 |
| Frederick Kobbs (UK) Limited | Wholesale & retail | 2019 |
| Frinton Driveways & Paving Limited | Construction | 2017 |
| Frinton Empire Court RTM Company Limited | Real estate | 2010 |
| Frinton Frames Ltd | Wholesale & retail | 2007 |
| Frinton Golf Club Limited | Arts & recreation | 2017 |
| Frinton Hand Car Wash Ltd | Wholesale & retail | 2023 |
| Frinton Housekeeping & Interiors Ltd | Administrative & support | 2026 |
| Frinton Kitchen & Bathroom Centre Ltd | Wholesale & retail | 2009 |
| Frinton Lawn Tennis Club Hospitality Limited | Hospitality | 2016 |
| Frinton Mobility Centre Ltd | Wholesale & retail | 2003 |
| Frinton Montessori Limited | Education | 2017 |
| Frinton-On-Sea Cricket Club Bar Ltd | Hospitality | 2020 |
| Frinton-On-Sea Lawn Tennis Trust,Limited | Arts & recreation | 1919 |
| Future Life Coaching and Consultancy Ltd | Health & social care | 2018 |
| G & T'S Cafe Ltd | Hospitality | 2020 |
| G T S Vehicle Sales Limited | Wholesale & retail | 2022 |
| G.Hinkson Ltd | Construction | 2025 |
| G3N3515 Ltd | Professional & scientific | 2026 |
| Gain Consultants Ltd | Professional & scientific | 2019 |
| Gain SPV BRL Ltd | Construction | 2021 |
| Gain SPV DRP Ltd | Professional & scientific | 2020 |
| Gain Spvman Ltd | Construction | 2020 |
| Garden USA Limited | Manufacturing | 2017 |
| Gary's Fresh Fish Ltd | Agriculture & fishing | 2015 |
| GEM Health Ltd | Health & social care | 2025 |
| Genesis Digital Studios Ltd | Information & communication | 2023 |
| Githaf Consulting Ltd | Information & communication | 2020 |
| Global Engineering Consulting Ltd | Construction | 2019 |
| Granite Tool Supplies (Wholesale) Limited | Wholesale & retail | 2010 |
| Grantleys Frinton Ltd | Wholesale & retail | 2017 |
| Great Danes & Associates Limited | Wholesale & retail | 2014 |
| Great Oaktree Land Services Ltd | Administrative & support | 2022 |
| Green Robins Tree and Gardening Services Limited | Administrative & support | 2024 |
| Greenaxe Forestry Limited | Agriculture & fishing | 2025 |
| Gunfleet Mechanical Services Ltd | Construction | 2019 |
| Hamford Homes Limited | Construction | 2007 |
| Hamford Property Company (Lease) Limited | Real estate | 2019 |
| Hamford Property Company Limited | Real estate | 2018 |
| Hamilton Contractor Services Limited | Administrative & support | 2025 |
| Happy Face Aesthetics Limited | Other services | 2020 |
| Happy Face Dermal Rejuvenation Limited | Health & social care | 2018 |
| Harding & Waites Ltd | Hospitality | 2026 |
| Heartwood Tree Company Ltd | Professional & scientific | 2020 |
| HFC Hospitality Services Ltd | Hospitality | 2025 |
| Hibbing Limited | | 1977 |
| Hoffer Services Limited | Real estate | 2019 |
| Honey (Beauty) Therapy Ltd | Other services | 2014 |
| Hope Cottage Studio Ltd | Information & communication | 2021 |
| Hopeflow Services Ltd | Construction | 2021 |
| Hospitality Talent Ltd | Administrative & support | 2020 |
| Hotpots (UK) Ltd | Wholesale & retail | 2012 |
| HR Prime Ltd | Administrative & support | 2024 |
| HR Prime Services Ltd | Administrative & support | 2023 |
| HZB Foods Ltd | Hospitality | 2020 |
| I-Dentico Ltd | Manufacturing | 2020 |
| Ice Cream Central Ltd | Administrative & support | 2016 |
| IMS Care Group Limited | Health & social care | 2010 |
| Inter Properties Limited | Real estate | 1991 |
| Inventornator Ltd | Transport & logistics | 2023 |
| Istereos Limited | Wholesale & retail | 2008 |
| ITS Silver Linings Limited | Health & social care | 2025 |
| IVY Grace Home Care Ltd | Health & social care | 2022 |
| J & E Grosvenor Properties Ltd | Real estate | 2024 |
| J C R Investment Properties Limited | Real estate | 2010 |
| J Nicholls Construction Ltd | Construction | 2014 |
| J&P Construction Services Ltd | Construction | 2015 |
| J.B. Fairley & SON Limited | Agriculture & fishing | 1997 |
| Jacob MS Ltd | Real estate | 2025 |
| James Pitman Limited | Real estate | 2025 |
| Jaygate Management Limited | Professional & scientific | 2007 |
| JEM 2020 Limited | Financial services | 2020 |
| Jhanksfbdo Ltd | Wholesale & retail | 2025 |
| JMW Social Work Consultancy Limited | Health & social care | 2012 |
| JO Donetto Limited | Hospitality | 2023 |
| JPD Marine Services Limited | Other services | 2014 |
| JS GAS & Heating Limited | Construction | 2025 |
| JSC Plastics and Construction Limited | Construction | 2017 |
| K.H. Residents Association Limited | Real estate | 1990 |
| Kadosh Ltd | Households | 2024 |
| KBL Investments Limited | Real estate | 2021 |
| KDR Group Ltd | Financial services | 2020 |
| Keith Durrant Limited | Professional & scientific | 2020 |