| Gs Yuasa Battery Europe LtdSwindon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2002 |
| Gt Exhibitions LimitedHarwich, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2000 |
| Guala Closures U.k. LimitedGlasgow, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 1966 |
| Guardian Fall LtdSheerness, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2011 |
| Gusbourne Estate LimitedAppledore, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2011 |
| Gv's Rochester LimitedRochester, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2014 |
| Gvm Long Life Formula UK LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2018 |
| Gvo Capital LimitedNewbury, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2013 |
| H H Associates LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 1991 |
| H R Drinks LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2017 |
| H.O.B. House of Brands UK LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 1987 |
| H.r. Owen Dealerships LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 1993 |
| HG&S LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2017 |
| Hackstons LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2021 |
| Hackstons Retail LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2023 |
| Halco Europe LtdHereford, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2011 |
| Halo Service Solutions LtdArdgay, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2001 |
| Hamiltons Galleries LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 1977 |
| Han Dian UK LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2016 |
| Hanwha Ocean Europe LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2024 |
| Hanwha Vision Europe LimitedChertsey, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2001 |
| Harlyn Solutions LimitedBlyth, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2020 |
| Harperwells LtdEye, United Kingdom · UKharperwells.com · checked 28 Oct 2026 | UK | 1 | – | – | –Premium (producers) | 6% | 2006 |
| Hascombe & Valiant Stud LimitedNewmarket, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2015 |
| Hatchbury LimitedSawbridgeworth, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2014 |
| Hawkes Farms LtdSpilsby, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 1959 |
| Hecho A Mano LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2015 |
| Heckfield Catering LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2010 |
| Hemisphere Freight Services LimitedIpswich, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 1989 |
| Hercules Wine WarehouseSandwich, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2007 |
| Heritage Advisors LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2019 |
| Hildon LimitedHampshire, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 1984 |
| Hillbridge Estates LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 1997 |
| Himalaya Wines LimitedBristol, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2015 |
| Hmt LLPHenley-on-Thames, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2008 |
| Hokkaido Fine Foods LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2023 |
| Holland Park Restaurant LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2021 |
| Holliday's LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2020 |
| Holly House Hire LimitedRoss-Shire, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2006 |
| Home of Wine LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2021 |
| Hotel Property InvestorsUnited Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 1980 |
| Houlihan Lokey LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2001 |
| House of Bordeaux LtdBillericay, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2023 |
| Howden Group Holdings LimitedLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 1994 |
| Hqw Aerospace LimitedPlymouth, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 1948 |
| Hudson Bay Capital Managemen T LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2018 |
| Hunted Productions LtdLondon, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2024 |
| Huntsbridge LtdUnited Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 1994 |
| I2 Analytical LtdWatford, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2003 |
| Iconic Distro Company LtdHenley in Arden, United Kingdom · UKchecked 28 Oct 2026 | UK | 1 | – | – | – | – | 2022 |