| Guil Limited | Professional & scientific | 2002 |
| Guildford Airportransfers Ltd | Transport & logistics | 2024 |
| Guildford Business Cafe Limited | Hospitality | 2018 |
| Guildford Judo Club Limited | Education | 2019 |
| Guildford Local Limited | Wholesale & retail | 2025 |
| Guildford Lock and Safe Limited | Administrative & support | 2003 |
| Guildford Premier Cars Limited | Transport & logistics | 2012 |
| Guildford Surface Repair Ltd | Construction | 2017 |
| Gunfleet Properties Limited | Real estate | 2002 |
| Gupta Properties Ltd | Real estate | 2022 |
| GVC Properties Ltd | Real estate | 2021 |
| Gweek Developments Limited | Administrative & support | 2015 |
| Gweek Holdings Limited | Administrative & support | 2015 |
| GWG Marketing Ltd | Professional & scientific | 2023 |
| GWP Recruitment Ltd | Extraterritorial | 2024 |
| Gwydyr Road Residents Limited | Households | 2006 |
| Gycman Ltd | Professional & scientific | 2009 |
| Gymbase Ltd | Arts & recreation | 2012 |
| Gypsy Grips Limited | Professional & scientific | 2009 |
| Gyro School Pro Ltd | Transport & logistics | 2016 |
| H a Waheed 786 Ltd | Manufacturing | 2025 |
| H&A Haulage Ltd | Transport & logistics | 2021 |
| H&H Glazing Ltd | Construction | 2025 |
| H&K Care Ltd | Transport & logistics | 2026 |
| H&M Holiday Rentals Ltd | Hospitality | 2025 |
| H&S Movements Ltd | Transport & logistics | 2022 |
| H&T Associate Ltd | Wholesale & retail | 2021 |
| H&Y Property Service Limited | Real estate | 2024 |
| H.K. Wentworth Limited | Manufacturing | 1941 |
| H.S.H. Investments Limited | Administrative & support | 2010 |
| Habitat Learn Group Ltd | Information & communication | 2018 |
| Habitat Learn Limited | Information & communication | 2018 |
| Habito Designs Ltd | Professional & scientific | 2020 |
| Hackett Associates Ltd | Professional & scientific | 2022 |
| Hades Tips Ltd | Information & communication | 2025 |
| Hadid (PVT) Ltd | Wholesale & retail | 2023 |
| Hadley Landscapes Limited | Administrative & support | 2026 |
| Hadzor Ltd | Professional & scientific | 1993 |
| Haff Homes Limited | Real estate | 2020 |
| Hair by Gero Limited | Other services | 2007 |
| Hair Craft (Woking) Limited | Other services | 2015 |
| Hair LAB (Woking) Ltd | Other services | 2019 |
| Hair LAB Limited | Other services | 2015 |
| Hair Masters Design (Woking) Limited | Other services | 2019 |
| Hair TEC Limited | Other services | 2005 |
| Hairy Jumper Limited | Real estate | 2010 |
| Hakim Jabr Transport Ltd | Transport & logistics | 2025 |
| Hako Star Ltd | Transport & logistics | 2025 |
| Halal Living Ltd | Information & communication | 2025 |
| Haldir Properties Limited | Professional & scientific | 2004 |
| Halebourne Nurseries Limited | Agriculture & fishing | 2007 |
| Half Pint Productions Ltd | Extraterritorial | 2009 |
| Halimah's Nursery Ltd | Education | 2023 |
| Hall Production Films Limited | Information & communication | 2017 |
| Hallam Towers Freehold Company Limited | Households | 2026 |
| Halleys Properties Ltd | Real estate | 2017 |
| Halstead ST Andrew's School Trust Limited | Education | 1985 |
| Hamilton Brown Capital Ltd | Financial services | 2017 |
| Hamilton Ramilton Ltd | Other services | 2025 |
| Hamlyns Limited | Professional & scientific | 2019 |
| Hammant’S M+E Engineering Ltd | Professional & scientific | 2026 |
| Hammer and Spade Company Limited | Construction | 2025 |
| Hammersmith Music and Sound Design Limited | Information & communication | 2018 |
| Hammond Haulage Ltd | Transport & logistics | 2025 |
| Handigas Limited | Professional & scientific | 1913 |
| Handle-It Packaging Limited | Manufacturing | 2011 |
| Handmade at Home Ltd | Manufacturing | 2021 |
| Handmade Glass Limited | Wholesale & retail | 2012 |
| Hands on Wood Ltd | Construction | 2019 |
| Handsome Steve Productions Ltd | Other services | 2016 |
| Handy 4 Ltd | Professional & scientific | 2025 |
| Hankley Financial Planning Limited | Financial services | 2015 |
| Hann Tucker Associates Limited | Professional & scientific | 1986 |
| Hannah Spicer Consulting Ltd | Professional & scientific | 2019 |
| Hannah Weller Ltd | Real estate | 2018 |
| Hanwealth Ltd | Professional & scientific | 2023 |
| Happy Lock Limited | Real estate | 2017 |
| Happy New Body Ltd | Health & social care | 2024 |
| Happy Songs Limited | Information & communication | 2010 |
| Happy Toadstools Ltd | Education | 2010 |
| HAQ Management Solutions Limited | Information & communication | 2014 |
| Hara's Care Limited | Health & social care | 2014 |
| Harboabs Trading Ltd | Wholesale & retail | 2025 |
| Harcourt Housing Ltd | Professional & scientific | 2019 |
| Hardacre Consulting Services Ltd | Administrative & support | 2019 |
| Hardinge Capital Limited | Financial services | 2023 |
| Hardinge Consult Limited | Administrative & support | 2019 |
| Hardware Digital Machines Limited | Manufacturing | 2021 |
| Hardware IS Easy Ltd | Professional & scientific | 2023 |
| Hardy and Sons Roofing Limited | Construction | 2025 |
| Hargy-Tech Ltd | Professional & scientific | 2003 |
| Haringey Park Limited | Real estate | 1997 |
| Harley HR Consulting Limited | Professional & scientific | 2016 |
| Harley Street at Home Ltd | Information & communication | 2021 |
| Harmonic Intelligent Solutions Ltd | Financial services | 2016 |
| Harmony Data Consulting Ltd | Information & communication | 2013 |
| Harnley Developments Ltd | Real estate | 2005 |
| Harpenden Plotholders Limited | Real estate | 2012 |
| Harriet Downing Fine Art Limited | Wholesale & retail | 2025 |
| Harriet Williamson Architecture Limited | Professional & scientific | 2022 |