| Future Intentions Yorkshire Community Interest Company | Administrative & support | 2021 |
| G and O Hospitality Ltd | Hospitality | 2022 |
| G S Self Storage Ltd | Administrative & support | 2018 |
| G&L Hodgson Hire Services Limited | Administrative & support | 2005 |
| G.E. Smith Limited | Transport & logistics | 1973 |
| G.J. Monkman (Builders) Limited | Construction | 2018 |
| Galleon Bingo Limited | Arts & recreation | 2021 |
| Gasper Holdings Limited | Professional & scientific | 1980 |
| Gavin Rice Joinery Limited | Construction | 2022 |
| Gbts(Uk) Limited | Information & communication | 2007 |
| GCB Property's Ltd | Real estate | 2017 |
| Gcuk Consulting Limited | Professional & scientific | 2020 |
| GE Solutions (PTY) Ltd | Administrative & support | 2020 |
| Gemma Clifford Property Ltd | Real estate | 2025 |
| General Practitioners Limited | Health & social care | 2017 |
| Getfire Ltd | Construction | 2023 |
| Gilbert Engineering Services Ltd | Professional & scientific | 2025 |
| Gilbert Inspection Services Ltd | Professional & scientific | 2025 |
| Gilead Ltd | Wholesale & retail | 2002 |
| Gill Hall Project Management Limited | Information & communication | 2013 |
| Gjnj Limited | Wholesale & retail | 2007 |
| GK Catering YO17 Ltd | Hospitality | 2025 |
| Glanimoore Limited | Financial services | 2021 |
| Glenhull Safety Services Limited | Mining & quarrying | 2015 |
| Global Amphibians Community Interest Company | Education | 2025 |
| GLP Storage Solutions Limited | Wholesale & retail | 2012 |
| GLP Strategic Solutions Ltd | Construction | 2010 |
| Goodys (Malton) Limited | Other services | 2001 |
| Gorin Carpentry Limited | Construction | 2015 |
| Gotcha Car Ltd | Wholesale & retail | 2026 |
| Grace Butler Property Ltd | Hospitality | 2026 |
| Grand GET Togethers Ltd | Hospitality | 2022 |
| Grandage Engineering Limited | Professional & scientific | 2023 |
| Grange Developments Yorkshire Ltd | Construction | 2016 |
| Grassfruits Limited | Agriculture & fishing | 2017 |
| GRB Developments (Yorkshire) Ltd | Construction | 2024 |
| Green Capital Hub Ltd | Professional & scientific | 2025 |
| Gresham Boon Ltd. | Professional & scientific | 2013 |
| Gresson Limited | Manufacturing | 2005 |
| H B Underwriting Agency Limited | Financial services | 2014 |
| H Monkman & Sons Limited | Agriculture & fishing | 2021 |
| H&H Homes North East Ltd | Real estate | 2020 |
| Halls Applications Limited | Construction | 2016 |
| Handy Northern Ltd | Construction | 2017 |
| Hardcastle France Limited | Professional & scientific | 2019 |
| Harling Yorkshire Limited | Professional & scientific | 2021 |
| Harper Rowe Management Ltd | Administrative & support | 2025 |
| Harper's General Haulage Limited | Transport & logistics | 2019 |
| Harribull Limited | Real estate | 2025 |
| Harrison Developments Malton LLP | | 2010 |
| Harrison Property Holdings (Malton) Limited | Real estate | 2022 |
| Hartswood Farm Ltd | Other services | 2024 |
| Haverdale Limited | Construction | 2023 |
| Hawthorn House Antiques Limited | Wholesale & retail | 2002 |
| Hayfield Bar & Grill Ltd | Hospitality | 2024 |
| HDM (Malton) Limited | Construction | 2024 |
| HDM Properties (Malton) Limited | Construction | 2024 |
| Healing Love Ltd | Health & social care | 2024 |
| Health and Care Knowledge Limited | Professional & scientific | 2024 |
| Heather Hall Interiors Ltd | Professional & scientific | 2024 |
| Heptade Consultancy Limited | Information & communication | 2023 |
| Heritage Biggs Ltd | Manufacturing | 2023 |
| Heritage Estate Services Ltd | Construction | 2023 |
| Heritage Joinery Whitby Ltd | Manufacturing | 2024 |
| Herld Ltd | Professional & scientific | 2024 |
| Hestia (York) Limited | Real estate | 2008 |
| Hhcib Ltd | Real estate | 2025 |
| High Farm Welham Limited | Agriculture & fishing | 1904 |
| High Mill Antiques Limited | Wholesale & retail | 2014 |
| HJA Ventures Ltd | Real estate | 2025 |
| Hldm Storage Ltd | Real estate | 2025 |
| HN Projects Ltd | Professional & scientific | 2022 |
| Holiday Homes in York Limited | Hospitality | 2018 |
| Home Decorating Centre Ltd | Wholesale & retail | 2021 |
| Home Sweet Home Care Agency Ltd | Other services | 2016 |
| Hope at YO17 Ltd | Hospitality | 2022 |
| Horseshoe House Apartments Ltd | Households | 2023 |
| House of CB Limited | Real estate | 2025 |
| Hovingham Fabrication and Balustrades Ltd | Manufacturing | 2022 |
| Howardian Helpers and Carers Ltd | Administrative & support | 2019 |
| HRH Farrington Properties Ltd | Real estate | 2023 |
| Huby and Sutton-On-The-Forest Agricultural Society Limited | Other services | 2006 |
| Huddlestone Farming Limited | Extraterritorial | 2013 |
| Hugo Parcel Delivery Limited | Transport & logistics | 2015 |
| Hull Auto Club Limited | Arts & recreation | 1999 |
| HWB Residential Limited | Real estate | 2024 |
| Hydramotion Holdings Limited | Other services | 2021 |
| Hydramotion Limited | Manufacturing | 1986 |
| IAN Brown Tyres Limited | Wholesale & retail | 2012 |
| IH Yorkshire Limited | Professional & scientific | 2022 |
| IN Pocket Limited | Administrative & support | 2020 |
| Industrial Engineering & Automation Services Ltd | Professional & scientific | 2022 |
| Infinity Design and Build (North) Ltd | Construction | 2022 |
| Infuze Electrical Limited | Construction | 2025 |
| Inman Farming (Barthorpe) Limited | Agriculture & fishing | 2021 |
| Inspiral Dreams Limited | Information & communication | 2012 |
| Inspired Appointments Limited | Administrative & support | 2012 |
| Integrity Portfolio Management Limited | Professional & scientific | 2023 |
| Intravenous Limited | Professional & scientific | 2002 |
| IP & EL Pennock Ltd | Real estate | 2026 |