| Floras Canine Care Ltd | Wholesale & retail | 2026 |
| Football Guardians Ltd. | Arts & recreation | 2019 |
| Form Mould and Tooling Limited | Manufacturing | 2007 |
| Four Legged Life Ltd | Other services | 2023 |
| FOX Eco Ltd | Construction | 2024 |
| Foyla Group Ltd | Wholesale & retail | 2025 |
| Fradem Ltd | Construction | 2016 |
| Freespirit Sound Ltd | Information & communication | 2013 |
| Frontline Digital Ltd | Information & communication | 2025 |
| Frugeo GRI Limited | Information & communication | 2015 |
| Frutarom (UK) Holdings Limited | Manufacturing | 1991 |
| FSS Cambridge Limited | Construction | 2023 |
| FU LU Shou Ltd | Hospitality | 2025 |
| Fuelscape Limited | Construction | 2021 |
| Full Swing Tennis Limited | Education | 2022 |
| Fusu Ltd | Transport & logistics | 2026 |
| Fuzz Properties Ltd | Real estate | 2022 |
| Fwmeds Limited | Health & social care | 2016 |
| G & a Fire Protection Limited | Construction | 1998 |
| G & a Fire Protection Trustees Limited | Professional & scientific | 2024 |
| G Bloc Ltd | Wholesale & retail | 2020 |
| Gabifaur Care Ltd | Health & social care | 2018 |
| GAG411 Limited | Extraterritorial | 2016 |
| GAG412 Limited | Professional & scientific | 2016 |
| Galaxy Land & Property Ltd | Real estate | 2021 |
| Gallegate Limited | Financial services | 2026 |
| Gamegate Properties Limited | Construction | 1988 |
| Garlands Farm Limited | Agriculture & fishing | 1957 |
| GAS Champion Ltd | Construction | 2018 |
| Gaston Consulting Ltd. | Professional & scientific | 2014 |
| GCS Trading Ltd | Construction | 2016 |
| General Metal (Cambridge) Limited | Manufacturing | 2010 |
| General Metal Constructions Limited | Manufacturing | 1964 |
| German Engineering Car Specialists Ltd | Wholesale & retail | 2017 |
| GET Fudged Ltd | Wholesale & retail | 2019 |
| GKB Property Maintenance Limited | Construction | 2020 |
| Gleinridge Consulting Ltd | Information & communication | 2025 |
| Glenn Wilson Flooring Limited | Construction | 2019 |
| Glenvista Properties Limited | Professional & scientific | 2001 |
| Global Manufacturing & Sourcing Limited | Wholesale & retail | 2012 |
| Global Sport Tourism CIC | Administrative & support | 2025 |
| GMC Investments Limited | Manufacturing | 2005 |
| Golden Messy Hair Ltd | Other services | 2016 |
| Goldsmith Global Corporation Limited | Administrative & support | 2009 |
| Good Friend Chinese Takeaway Limited | Hospitality | 2019 |
| Gower Logistics Ltd | Transport & logistics | 2026 |
| GR8 Composites Limited | Manufacturing | 2026 |
| Gracefield Biomed Ltd | Professional & scientific | 2014 |
| Grahamthomasmedia Ltd | Information & communication | 2012 |
| Grain Services Limited | Agriculture & fishing | 2024 |
| Grand TAJ Ltd | Hospitality | 2025 |
| Granta Crown Holdings Limited | Professional & scientific | 2025 |
| Granta Crown Limited | Financial services | 2025 |
| Gravity Estate Holdings Ltd | Real estate | 2024 |
| Great Thurlow Renewables Limited | Administrative & support | 2013 |
| Great Wilsey Farms LP | | 2011 |
| Green Iris Limited | Professional & scientific | 2018 |
| Greybeard Holdings Limited | Financial services | 2020 |
| Grillo Group Ltd | Manufacturing | 2018 |
| Guardtech Cleanrooms Ltd | Manufacturing | 1990 |
| Guardtech Holdings Ltd | Construction | 2021 |
| Gunners Property Ltd | Real estate | 2022 |
| Guri-N Ltd | Wholesale & retail | 2026 |
| Gusal Construction Ltd | Construction | 2023 |
| Gusto Hospitality Limited | Hospitality | 2018 |
| Gxma Ltd | Real estate | 2018 |
| H&Mm Limited | Health & social care | 2023 |
| Hagelin FLV (UK) Ltd | Financial services | 1996 |
| Hagiu Transport Limited | Construction | 2022 |
| Hamilton SRL Ltd | Administrative & support | 2026 |
| Hanchett Homes Ltd | Real estate | 2026 |
| Hands UP Education Community Interest Company | Information & communication | 2017 |
| Happy Cat Studios Ltd | Professional & scientific | 2019 |
| Happy House CB9 Ltd | Hospitality | 2023 |
| Harnham Ventures Limited | Professional & scientific | 2017 |
| Hart Engineering Solutions Ltd | Professional & scientific | 2024 |
| Hasuk Property Ltd | Real estate | 2025 |
| Hatherleigh Research Limited | Professional & scientific | 2015 |
| Havabuild Limited | Construction | 2003 |
| Haverclean Limited | Administrative & support | 2018 |
| Haverhill Baby Bank Limited | Health & social care | 2026 |
| Haverhill Community Care Ltd | Health & social care | 2016 |
| Haverhill Community Sports Association | Arts & recreation | 2009 |
| Haverhill Electrical Services Limited | Construction | 2019 |
| Haverhill GAS Ltd | Wholesale & retail | 2023 |
| Haverhill Golf Club Limited | Arts & recreation | 1982 |
| Haverhill Gymnastics Limited | Arts & recreation | 2015 |
| Haverhill Hair Cuts Ltd | Other services | 2026 |
| Haverhill Health Care Agency Ltd | Administrative & support | 2020 |
| Haverhill Ice Cream & Dessert Vans Ltd | Hospitality | 2024 |
| Haverhill Logistics Limited | Transport & logistics | 2012 |
| Haverhill Music Academy CIC | Arts & recreation | 2025 |
| Haverhill Music Hub Limited | Education | 2022 |
| Haverhill Property Ltd | Financial services | 2023 |
| Haverhill Service Station Limited | Wholesale & retail | 2014 |
| Haverhill Store Ltd | Wholesale & retail | 2025 |
| Haverhill Stove and Chimney Sweep Ltd | Administrative & support | 2025 |
| Haverhill Test Centre Limited | Wholesale & retail | 2001 |
| Haverhill Tuition Centre Ltd | Education | 2024 |
| Havtech Plumbing & Heating Ltd | Construction | 2014 |