| Graydon Lloyd Limited | Professional & scientific | 2005 |
| Graymont Limited | Real estate | 1990 |
| Grays (Rotherham) Limited | Professional & scientific | 1946 |
| Great Central Developments Limited | Real estate | 1990 |
| Greaves and Harvey,Limited | Wholesale & retail | 1935 |
| Green Tree Landscape Management Limited | Administrative & support | 2003 |
| Greenstreet Photographics Limited | Real estate | 1961 |
| Group Riverside Limited | Professional & scientific | 2004 |
| GS Quantity Surveying Ltd | Professional & scientific | 2007 |
| H S Eyecare Limited | Health & social care | 2007 |
| H&K Roofing Contractors Ltd | Construction | 2008 |
| H. Burgin and SON Ltd | Construction | 2003 |
| H.S. Harbon & Sons Limited | Construction | 1977 |
| H2D Ltd | Wholesale & retail | 2005 |
| Hadfield Electrical & Security Supplies Ltd | Wholesale & retail | 2003 |
| Hague Precision Engineering (Sheffield) Limited | Manufacturing | 2000 |
| Haircut Inn Ltd | Other services | 2003 |
| Hallamshire Brewery Services Limited | Manufacturing | 2001 |
| Hallamshire Physiotherapy Limited | Health & social care | 2004 |
| Hancock Engineering Ltd | Professional & scientific | 2001 |
| Hark Recruitment Limited | Administrative & support | 2008 |
| Harlows Limited | Construction | 2006 |
| Harold Woolgar Insurance (Admin) Limited | Financial services | 2002 |
| Harry Cooper (Butchers) Limited | Transport & logistics | 1965 |
| Hartley Haulage (Sheffield) Limited | Transport & logistics | 2007 |
| Harworth Heating Limited | Manufacturing | 1986 |
| HB Finance Specialist Ltd | Professional & scientific | 2018 |
| HBC Yorkshire Limited | Professional & scientific | 2007 |
| Hear UK Limited | Professional & scientific | 2003 |
| Hearth & Home Limited | Wholesale & retail | 2001 |
| Helmstone Limited | Wholesale & retail | 2026 |
| Herose Limited | Manufacturing | 1998 |
| Hertenroep BOG UK Limited | Construction | 2007 |
| Hesley Electrical Limited | Construction | 1983 |
| Highfield House Farm Limited | Manufacturing | 2005 |
| Hillfoot Waste Management Limited | Water & waste | 2002 |
| HOA Creative Communications Limited | Professional & scientific | 2002 |
| HOL Construction Limited | Wholesale & retail | 2007 |
| Hole in One Joinery Services Limited | Construction | 2025 |
| Holgate Limited | Professional & scientific | 2004 |
| Hollowgate Business Services Limited | Professional & scientific | 1999 |
| Hollteck Properties Ltd | Real estate | 2001 |
| Holly Wilson Ltd | | 2007 |
| Horbury Group Limited | Professional & scientific | 2007 |
| Hosanna Water Ltd | Manufacturing | 2026 |
| Hot Metal Press Limited | Manufacturing | 2010 |
| House of Light Trust Limited | Other services | 1982 |
| House of Logos Limited | Manufacturing | 2004 |
| Howco Oilfield Services Limited | Manufacturing | 2002 |
| Howson Associates Ltd | Professional & scientific | 2000 |
| HSC Knife Company Limited | Manufacturing | 2007 |
| Hurst Booker Financial & Mortgage Solutions Limited | Extraterritorial | 2006 |
| I.Goldstone(Leeds)Limited | Manufacturing | 1936 |
| Idrees Nexous Ltd | Wholesale & retail | 2026 |
| Impact Carbides Holdings Limited | Manufacturing | 2003 |
| Independant Media Investments Limited | Information & communication | 1996 |
| Infoseek Limited | Financial services | 2003 |
| Initial Surveys Limited | Professional & scientific | 2002 |
| Inn-Sight (Sheffield) Limited | Professional & scientific | 1997 |
| Insignia Signs & Graphics Ltd | Other services | 2002 |
| Inspire Bedding Ltd | Wholesale & retail | 2024 |
| Interactive Computer Consultancy Limited | Information & communication | 1997 |
| Ioannis Stergiou Limited | Health & social care | 2018 |
| Ivanleon Ltd | Transport & logistics | 2026 |
| J C L C Limited | Construction | 2005 |
| J Flack Limited | Wholesale & retail | 2004 |
| J G Scott Carpentry and Shopfitting Ltd | Construction | 2005 |
| J J Properties Ltd | Real estate | 2004 |
| J.C. Bird Limited | Health & social care | 2007 |
| J.C. Snell Limited | Wholesale & retail | 1947 |
| Jamboree Arts Ltd | Arts & recreation | 2005 |
| James Cooper (Chiropodist) Ltd | Health & social care | 2003 |
| James Lucas Building & Roofing Services Ltd | Construction | 2002 |
| James Ruane Limited | Extraterritorial | 1997 |
| Jb-It-Uk Limited | Other services | 2001 |
| JCB Dixon Engineering Limited | Professional & scientific | 2003 |
| Jcpii Ltd | Professional & scientific | 2006 |
| Jeep Promotions Limited | Arts & recreation | 1997 |
| Jenx Limited | Manufacturing | 1984 |
| Jepstone Construction Limited | Professional & scientific | 2004 |
| JF Property Investments Limited | Real estate | 2025 |
| John B. Chatterley & Sons Limited | Manufacturing | 1994 |
| John H. Elliott (Monostamp) Limited | Extraterritorial | 1920 |
| John Longley Kitchens and Bathrooms Limited | Construction | 2002 |
| Johnson Environmental Consultants Limited | Professional & scientific | 2003 |
| Jordans Solicitors LLP | | 2005 |
| Junction 4 Pallets Limited | Manufacturing | 2006 |
| Junction Street Properties Limited | Real estate | 2003 |
| Just Kids Limited | Professional & scientific | 2003 |
| Just Natural (Crookes) Limited | Wholesale & retail | 2004 |
| K B Contractors Limited | Administrative & support | 2005 |
| K B Interiors Limited | Construction | 2005 |
| K L N (Investments) Limited | Real estate | 1999 |
| K S Engineering Services Limited | Professional & scientific | 2002 |
| K Waddington and Sons Roofing Contractors Limited | Construction | 1990 |
| K.D.L. Properties Limited | Real estate | 1992 |
| Karbin Unit Limited | Information & communication | 2003 |
| Kaye Aluminium (Holdings) Limited | Manufacturing | 2004 |
| Kelvin Steels (England) Limited | Manufacturing | 2000 |
| Kens Tyres and Exhausts Limited | Wholesale & retail | 2001 |