| Oakseed Plus Enterprise Ltd | Wholesale & retail | 2024 |
| Offerfactor Limited | | 1986 |
| Old School Close Management Limited | Households | 1993 |
| ON SET Safety Limited | Public administration | 2006 |
| Oracle Productions Limited | | 1990 |
| Otto Property Ltd | Real estate | 2004 |
| Outworth Limited | | 1980 |
| P & H Framing Limited | Wholesale & retail | 2006 |
| P J Hadley Carpentry and Joinery Limited | Construction | 2003 |
| P3M Limited | Professional & scientific | 2004 |
| Paprika Horndean Limited | Hospitality | 2024 |
| PCS Powder Coatings Ltd | Manufacturing | 2007 |
| Penn Lawnmowers Limited | Manufacturing | 2006 |
| Performance for Business Limited | Education | 2005 |
| Petersfield & Reliance Launderers Limited | Administrative & support | 1899 |
| Pharquas Ltd | Professional & scientific | 2013 |
| Pionearz Recordings Ltd | Information & communication | 2023 |
| Pk's Body Piercing Studio Limited | Other services | 2003 |
| Plasplus Engineering Limited | Professional & scientific | 2007 |
| Polymedia Limited | Professional & scientific | 2003 |
| Portsmouth Engineering Co.Limited | Extraterritorial | 1964 |
| Preformed Line Products (Great Britain) Limited | Manufacturing | 1957 |
| Production Techniques Limited | Manufacturing | 1966 |
| Quality Building Contractors Limited | Wholesale & retail | 1992 |
| Quicksilver Services Limited | Manufacturing | 1985 |
| R J Playground Services Limited | Construction | 2003 |
| R M Marine Limited | Manufacturing | 2004 |
| Rappa Fencing Limited | Manufacturing | 1987 |
| RCP Building Services Ltd | Construction | 2005 |
| Redfields Limited | Manufacturing | 1995 |
| Redmart Builders Limited | | 1983 |
| Rhythm Star Live Ltd | Professional & scientific | 2015 |
| Rich Hippo Industries Limited | Professional & scientific | 2005 |
| Rocky Mountain Essentials | | 2001 |
| Rohde & Schwarz Services Limited | Wholesale & retail | 1970 |
| Rolf Park Farm Limited | Agriculture & fishing | 1976 |
| Rose Enterprises Limited | Transport & logistics | 2006 |
| Rowland's Funeral Services (Petersfield) Ltd | Other services | 1950 |
| ROY Toovey Contractors Limited | Wholesale & retail | 2003 |
| Ruby Construction Limited | Wholesale & retail | 2003 |
| Ryans (Catering) Limited | | 1988 |
| RZC Ltd | Wholesale & retail | 2024 |
| S G Structures Limited | Professional & scientific | 2005 |
| S P Ward Ltd | Construction | 2003 |
| S.A.Lunn Limited | Wholesale & retail | 1963 |
| Safety Air Services Ltd | Other services | 1990 |
| Salisbury Sports Limited | | 1976 |
| Samell Limited | Construction | 2006 |
| Sandev Consulting Limited | Information & communication | 2022 |
| Sciotech Projects Limited | Professional & scientific | 1998 |
| Scypher Limited | Professional & scientific | 2002 |
| Selecta Tyre Limited | Wholesale & retail | 1973 |
| Senzor - Systems Limited | Professional & scientific | 2020 |
| Sequoia Tree Services Limited | Agriculture & fishing | 2011 |
| Sharon Payne Ltd | Professional & scientific | 2006 |
| Sierra Computer Solutions Limited | Information & communication | 1995 |
| Simon Corp Associates Limited | Professional & scientific | 2005 |
| Simon Viney Associates Limited | Professional & scientific | 2007 |
| Slane Holdings Limited | Real estate | 2021 |
| Small Business Limited | | 1991 |
| Snell Consultancy Services Limited | Information & communication | 1999 |
| Snook Management Company Limited | Real estate | 1990 |
| Solent Agility School Ltd | Education | 2017 |
| Solent Commercials Limited | Wholesale & retail | 2005 |
| Solent Industrial Plastics Limited | Water & waste | 1982 |
| South Coast Parties Ltd | Hospitality | 2004 |
| Southampton Newsagents Limited | | 1962 |
| Southern Roofing Solutions Ltd | Construction | 2024 |
| Southern Trading Company Limited | Transport & logistics | 1990 |
| Southsea Clarence Esplanade Pier Company Limited(The) | Other services | 1860 |
| Spavintoso Limited | | 1972 |
| Sphere Creative Ltd | Professional & scientific | 2003 |
| Steelstock UK Limited | Professional & scientific | 1997 |
| Stewart CAD Designs Limited | Professional & scientific | 1997 |
| Stirling Court Residents Association Limited | Real estate | 1983 |
| Storrington Close Management Limited | Households | 1986 |
| Surrey and Hants Developments Limited | | 1962 |
| Sustainability Solutions Limited | Professional & scientific | 2022 |
| Swanblade Limited | Professional & scientific | 1990 |
| Sweetheart International Ltd | Professional & scientific | 1974 |
| T.W.C. Gain & Sons (Homes) Limited | Wholesale & retail | 1975 |
| Technical Lapping Company Limited | Manufacturing | 1969 |
| Thala Limited | | 1966 |
| THE Acorn Book and Toy Shop Limited | Wholesale & retail | 1988 |
| THE Alarm Company UK Limited | Administrative & support | 2004 |
| THE Final Frontier Charitable Trust | Education | 2004 |
| THE Good Food Village Limited | Hospitality | 2013 |
| THE Gosport Furniture Shop Ltd | Wholesale & retail | 1994 |
| THE Indoor Karting Company Limited | Arts & recreation | 1990 |
| THE Landscapers UK Limited | Agriculture & fishing | 2006 |
| THE Liquorice Press Limited | Manufacturing | 2003 |
| THE Mane Studio Limited | Other services | 2005 |
| THE Reality Business Limited | Professional & scientific | 2003 |
| THE Southern and South East England Tourist Board | Other services | 1977 |
| Thomas Hirst and SON Limited | Manufacturing | 1958 |
| Time to Change Limited | Administrative & support | 2003 |
| Tramar (Developers) Limited | Real estate | 1959 |
| Trinity Exhibitions Limited | | 1980 |
| U.A.L. Limited | | 1980 |
| Ulundi Limited | | 1977 |