| Collinson Systems Limited | Professional & scientific | 1995 |
| Colyer Management Services Ltd | Financial services | 2013 |
| Commercial Property Services 24 Limited | Professional & scientific | 2024 |
| Conjem Ltd | Hospitality | 2012 |
| Consort Equine Therapies Ltd | Agriculture & fishing | 2023 |
| Constructether Limited | Information & communication | 2026 |
| Consultkeep Ltd | Professional & scientific | 2018 |
| Contract Production Limited | Manufacturing | 2009 |
| Coopers Cabins Ltd | Real estate | 2022 |
| Country Cleaning Services Ltd | Administrative & support | 2022 |
| Cropton Forest Lodge Limited | Real estate | 2017 |
| CSD Training (Malton) Ltd | Arts & recreation | 2025 |
| CSR Meat Trading Consultants Ltd | Professional & scientific | 2025 |
| Cummings Advisors Limited | Professional & scientific | 2026 |
| Custom Shows Events Limited | Arts & recreation | 2025 |
| D F Goodswen & SON (Butchers) Limited | Real estate | 1996 |
| D Lythe Electrical Services Limited | Construction | 2019 |
| Dalby Firewood Limited | Agriculture & fishing | 2012 |
| Dalby Forest Cycle Hub CIC | Arts & recreation | 2018 |
| DAM Holdings Limited | Households | 2020 |
| Dangleberry Music Ltd | Wholesale & retail | 2006 |
| Darking Property Services Ltd. | Administrative & support | 2022 |
| Data-Fi Ltd | Information & communication | 2023 |
| Degenerative Encephalopathy Research Group | Health & social care | 2008 |
| Derwent Vale Farm Vets Ltd | Professional & scientific | 2021 |
| Digibound Ltd | Information & communication | 2011 |
| Digimatters Consulting Limited | Professional & scientific | 2025 |
| Dixon Builders Wetwang Ltd | Construction | 2006 |
| DLC Prestige Limited | Wholesale & retail | 2008 |
| DNE Technologies (2019) Limited | Wholesale & retail | 2019 |
| Dollarbeg Property Rentals Limited | Real estate | 2021 |
| Dotbase Digital Ltd | Professional & scientific | 2024 |
| DR Alister Seaton Ltd | Health & social care | 2022 |
| Drake Consulting Services Limited | Professional & scientific | 2016 |
| Dring Holdings Ltd | Financial services | 2019 |
| Dunford Pro Legal Limited | Professional & scientific | 2016 |
| Dunnington 21 Ltd | Real estate | 2022 |
| Eastgate Garage Ltd | Wholesale & retail | 2014 |
| Eastgate Lodge Ltd | Hospitality | 2025 |
| Ecocig Vapour Store Limited | Wholesale & retail | 2015 |
| Efas Limited | Education | 2003 |
| Elleron Agriculture Limited | Agriculture & fishing | 2018 |
| Enable to Innovate Ltd | Administrative & support | 2025 |
| Endfield Machinery Sales Ltd | Wholesale & retail | 2022 |
| EPD (Energy Parts Distribution) Limited | Professional & scientific | 2019 |
| Essendine Limited | Other services | 2025 |
| Everture Studios Ltd | Information & communication | 2012 |
| Exclusive Doodles Ltd | Agriculture & fishing | 2019 |
| Exclusivepups Ltd | Wholesale & retail | 2024 |
| Experiences Matter Ltd | Information & communication | 2019 |
| Fabulous Planning Stationery Ltd | Manufacturing | 2020 |
| Farm MIX Limited | Professional & scientific | 2013 |
| Farrow & Dale Oak Frames Ltd | Manufacturing | 2022 |
| Fenmoor Blacksmiths Ltd | Manufacturing | 2023 |
| Fern Farm Minerals Ltd | Financial services | 2012 |
| Figaros Italian Restaurant Ltd | Hospitality | 2026 |
| Fireflies and Glow Worms Ltd | Health & social care | 2023 |
| Firelec Limited | Construction | 2002 |
| Fiscability UK Limited | Professional & scientific | 2012 |
| Fisher Site Engineer Ltd | Construction | 2024 |
| Floranova Group Limited | Wholesale & retail | 2021 |
| FOR the Face Limited | Wholesale & retail | 2020 |
| Forestviewcropton Ltd | Hospitality | 2021 |
| Four Walls Collective Ltd | Other services | 2025 |
| FOX & Rabbit Holiday Cottages Limited | Real estate | 2024 |
| Furhg Limited | Wholesale & retail | 2020 |
| G Newman Electrical Ltd | Construction | 2018 |
| Gbvq Ltd | Professional & scientific | 2023 |
| GEO. Cooper & Sons (Pickering) Limited | Wholesale & retail | 1931 |
| George Cash Ltd | Construction | 2018 |
| Gerard Taylor Ltd | Construction | 2006 |
| GG & CL Edwards Limited | Construction | 2013 |
| Gillies Jones Glass Limited | Manufacturing | 2006 |
| Global Projects Engineering and Management Ltd | Professional & scientific | 2026 |
| Global Stone Works Limited | Wholesale & retail | 2025 |
| Goathland Gifts and Tearooms Ltd | Hospitality | 2017 |
| Goode Contract Services Ltd | Construction | 2024 |
| Greystone Capital Limited | Energy | 2024 |
| H & S Timber Limited | Agriculture & fishing | 2025 |
| Hall Farming Limited | Agriculture & fishing | 2011 |
| Hallgarth Holdings Limited | Financial services | 2022 |
| Hambleton Independent Living Ltd | Health & social care | 2021 |
| Hand Properties Ltd | Real estate | 2020 |
| Handanconsult Ltd | Professional & scientific | 2025 |
| HCA Property Ltd | Real estate | 2021 |
| Headfully Ltd | Professional & scientific | 2020 |
| Health PK Ltd | Health & social care | 2025 |
| Heather the HUT Ltd. | Hospitality | 2024 |
| Helix Architecture LLP | | 2016 |
| Helix Project Management Ltd | Extraterritorial | 2017 |
| Helmsley Black Cabs Ltd | Transport & logistics | 2018 |
| Helmsley Brewing Co Limited | Manufacturing | 2022 |
| Hendustry Ltd | Agriculture & fishing | 2025 |
| Hester & Graham Ltd | Hospitality | 2020 |
| High Papermill Farm Limited | Agriculture & fishing | 2001 |
| Hollin Equest Equine Dentistry Ltd | Professional & scientific | 2012 |
| Hollistic Productions Ltd | Information & communication | 2008 |
| Home-Well Homecare Ltd | Health & social care | 2024 |
| Hopkinson and Sons Ltd | Wholesale & retail | 2006 |
| Horsetown Beers Limited | Manufacturing | 2016 |