| 4site Logistics Ltd | Builders | PO15 5TD | 2025 |
| A J Lowe Brickwork Contractor Ltd | Builders | SO31 6UG | 2010 |
| A. Withey Paving Ltd | Builders | SO31 6XA | 2013 |
| Abj Home Improvements Ltd | Builders | SO31 6PE | 2018 |
| Amiri Construction Ltd | Builders | PO15 5TD | 2005 |
| Amiri Homes Ltd | Builders | PO15 5TD | 2019 |
| Apd Construction & Improvements Ltd | Builders | SO31 1BB | 2019 |
| Applecore Construction & Maintenance Ltd | Builders | SO31 7GH | 2025 |
| Art of Integration Maintenance Ltd | Builders | PO15 5TD | 2020 |
| Astra Thermal Ltd | Builders | SO31 6RN | 2006 |
| Bespoke Carpentry Ltd | Builders | SO31 6SD | 2024 |
| Blank Canvas Building Contractors Ltd | Builders | SO31 9HU | 2014 |
| Blockbuild.Co.UK Ltd | Builders | SO31 6EP | 2019 |
| Boskalis Eod Services (UK) Ltd | Builders | PO15 5SS | 2013 |
| Boskalis Marine Contracting Ltd | Builders | PO15 5SS | 1959 |
| Boskalis Offshore Ltd | Builders | PO15 5SS | 2012 |
| Boskalis Subsea Ltd | Builders | PO15 5SS | 2010 |
| Boskalis Westminster (Holdings) Ltd | Builders | PO15 5SS | 1933 |
| Boskalis Westminster Ltd | Builders | PO15 5SS | 1962 |
| Brooks Construction Solutions Ltd | Builders | SO31 7ED | 2023 |
| Builderoo Ltd | Builders | PO15 5TD | 2017 |
| Bundlehome Ltd | Builders | PO15 5TT | 2025 |
| C & K Scaffolding Ltd | Builders | SO31 7EH | 2010 |
| C D Reilly Construction Ltd | Builders | SO31 7ER | 2025 |
| Capital Homes Group Ltd | Builders | PO15 5TJ | 2015 |
| Cbrs Estates Ltd | Builders | SO31 9GB | 2012 |
| Chasborn Homes Ltd | Builders | SO31 9HZ | 2025 |
| Citadel Civil Engineering Consultancy Ltd | Builders | SO31 6NT | 2015 |
| Coastline Facilities Support Services Ltd | Builders | SO31 7GW | 2018 |
| Conson Projects Ltd | Builders | SO31 7LR | 2021 |
| Corbiere Homes (Woking) Ltd | Builders | PO14 4AR | 2011 |
| Corbiere Homes Ltd | Builders | PO14 4AR | 2008 |
| Cornwall Carpenters Ltd | Builders | PO15 6RQ | 2025 |
| Cornwall Hendra Ltd | Builders | PO15 6RQ | 2025 |
| Cosgrove Painting Contractors Ltd | Builders | SO31 7GE | 2016 |
| Cougar Engineering & Construction Ltd | Builders | PO15 5TH | 2003 |
| Cp Mitchley Ltd | Builders | PO15 5TH | 2015 |
| Crm Project Solutions Ltd | Builders | SO31 6XH | 2026 |
| Crown Developments (Winchester) Ltd | Builders | PO15 5SS | 2000 |
| Csf (Building Services) Ltd | Builders | SO31 9EW | 2001 |
| D Ratcliffe & Sons Ltd | Builders | SO31 7EQ | 2019 |
| Dbs Maintenance Ltd | Builders | PO15 5SS | 2003 |
| Dectech Ltd | Builders | SO31 6PJ | 2006 |
| Defacto Services Ltd | Builders | PO14 4EG | 2016 |
| Dn Carpentry Ltd | Builders | SO31 6NT | 2023 |
| Dorelbury Ltd | Builders | PO15 5SS | 1980 |
| Ech Property Solutions Ltd | Builders | PO15 5TH | 2015 |
| Ecobright Consultancy Services Ltd | Builders | PO15 5TD | 2018 |
| Erikom Building Solutions Ltd | Builders | PO15 5SE | 2014 |
| Evolve Building Group Ltd | Builders | SO31 7ED | 2023 |
| Fresh Air Flow Ltd | Builders | SO31 7BY | 2024 |
| Fsc Facilities Services Ltd | Builders | SO31 9JJ | 2026 |
| G Hansford Interiors Ltd | Builders | SO31 7GE | 2016 |
| Greens Electrical Contractors Ltd | Builders | PO14 4LG | 2022 |
| Grinyer Maintenance Ltd | Builders | SO31 7PN | 2013 |
| Hampshire Garden Rooms Ltd | Builders | SO31 6NT | 2020 |
| Hampshire Stone Care Ltd | Builders | PO14 4QJ | 2022 |
| Hardway Construction Ltd | Builders | SO31 9FR | 2000 |
| Harmen Construction Ltd | Builders | PO14 4AR | 2013 |
| Harmen Homes Ltd | Builders | PO14 4AR | 2014 |
| Harper Victoria Estate Ltd | Builders | SO31 6TY | 2025 |
| Harpers Weybridge Ltd | Builders | PO15 5TH | 2009 |
| Havenshurst Ltd | Builders | SO31 7EH | 1997 |
| Hawkins Lifting Ltd | Builders | SO31 6RB | 2014 |
| Hexley Ltd | Builders | PO14 4AR | 2002 |
| Htt Property Development Ltd | Builders | SO31 7EH | 2025 |
| Jack M Smith Construction Site Services Ltd | Builders | SO31 7ED | 2015 |
| Jackson Construction (Southcoast) Ltd | Builders | SO31 6PB | 2023 |
| Jaguar Engineering Group Ltd | Builders | PO15 5TH | 2010 |
| Jb Carpentry Contractors (Southern) Ltd | Builders | PO15 5SJ | 2022 |
| Jb Carpentry Contractors Ltd | Builders | PO15 5SJ | 2017 |
| Jb Homes (Southern) Ltd | Builders | PO15 5SJ | 2021 |
| Jgc Property Services Ltd | Builders | PO15 5TE | 2013 |
| Jjubs Ltd | Builders | SO31 9GH | 2024 |
| Jms Building and Carpentry Solutions Ltd | Builders | SO31 1BB | 2017 |
| John Clean Ltd | Builders | SO31 6UP | 2022 |
| Jpc Property Services Ltd | Builders | PO14 4AR | 2003 |
| K S Mechanical Hampshire Ltd | Builders | SO31 1BB | 2001 |
| Kelpie Landscape & Build Ltd | Builders | SO31 9HT | 2026 |
| Landdene Homes Ltd | Builders | PO15 5TJ | 2023 |
| Lemon Lumba Ltd | Builders | SO31 7GE | 2021 |
| Limburn & Field Ltd | Builders | PO15 5TD | 2018 |
| Ljs Windows Ltd | Builders | PO14 4JP | 2019 |
| Lockswood Construction Ltd | Builders | SO31 6PY | 2024 |
| Loftfoam Ltd | Builders | SO31 7ED | 2021 |
| M.A. Wright Ltd | Builders | PO14 4AR | 1997 |
| Martin Williams Building and Refurbishment Ltd | Builders | PO15 5TD | 2015 |
| Mavis Developments Ltd | Builders | PO15 5TT | 2024 |
| Mkd Conservation, Construction & Restoration Ltd | Builders | SO31 6LH | 2017 |
| Nb Property Services Southern Ltd | Builders | SO31 6UB | 2017 |
| On the Grid Ltd | Builders | SO31 6PY | 2020 |
| On-Point Building Contractors Ltd | Builders | SO31 6QY | 2015 |
| Onpoint Property Proffessionals Ltd | Builders | SO31 7AX | 2021 |
| Ordnance Property Ltd | Builders | PO15 5SS | 2019 |
| Pcm Solar Ltd | Builders | SO31 9FR | 2018 |
| Pel Gibbs Ltd | Builders | PO14 4NA | 2007 |
| Pevensey Coastal Defence Ltd | Builders | PO15 5SS | 1999 |
| Phillip Nuttall Kitchens Ltd | Builders | SO31 1BB | 2008 |
| Pinnacle Sound Ltd | Builders | PO14 4AR | 2018 |
| Pinneridge Developments Ltd | Builders | SO31 1BB | 2001 |
| Planit Preservation Ltd | Builders | SO31 7EP | 2000 |
| Plm Homes Ltd | Builders | SO31 9JH | 2003 |
| Premier Boat Club Ltd | Builders | SO31 1ZL | 2020 |
| Premier Marinas Ltd | Builders | SO31 1ZL | 1994 |
| Pro-Fix Access Ltd | Builders | PO14 3EB | 1996 |
| Profix Access (Southern) Ltd | Builders | PO14 3EB | 2000 |
| Project Specific Tasks Ltd | Builders | SO31 7AQ | 2007 |
| Quadrex Projects Ltd | Builders | SO31 7GE | 2014 |
| Reava Brickworks Ltd | Builders | SO31 6XH | 2007 |
| Reilly Construction Ltd | Builders | SO31 1ZT | 1987 |
| Remarkable Repairs Ltd | Builders | PO14 4LQ | 2019 |
| Rightview Home Renovations Ltd | Builders | SO31 1BB | 2025 |
| Rkw Shopfitting Ltd | Builders | SO31 7LP | 2015 |
| Rock Fall Company Ltd | Builders | PO15 5SS | 1913 |
| Rr Brickwork Ltd | Builders | SO31 6TG | 2025 |
| Safe Hands Property Maintenance Ltd | Builders | SO31 6EB | 2014 |
| Sbp Construction Ltd | Builders | SO31 6EH | 2019 |
| Scott Loveday Building & Paving Contractors Ltd | Builders | SO31 9JH | 2014 |
| Sea Salt Build Ltd | Builders | PO15 5TH | 2017 |
| Sesi Ltd | Builders | SO31 9GZ | 2025 |
| Sgc Projects Ltd | Builders | SO31 1BB | 2003 |
| Shms Contracting (Southern) Ltd | Builders | PO15 5TD | 2013 |
| Shms Contracting Ltd | Builders | PO15 5TD | 2009 |
| Shuff Renovations Ltd | Builders | PO14 4AR | 2023 |
| South Leigh Construction Ltd | Builders | PO14 4NX | 2022 |
| Southern Cross Carpentry and Building Ltd | Builders | SO31 1BB | 2018 |
| Southern Ground Screws Ltd | Builders | PO14 4PD | 2026 |
| Southern Surveying Services Ltd | Builders | SO31 7HG | 2002 |
| Sparta Interiors Ltd | Builders | PO14 4PB | 2024 |
| Specialist Thermal Ltd | Builders | SO31 7BW | 2023 |
| Srs Project Services Ltd | Builders | PO15 5SS | 2021 |
| Steward Carpentry Ltd | Builders | SO31 1BB | 2015 |
| Stubbs Builders Ltd | Builders | SO31 9GP | 2015 |
| Sueno Building and Development Ltd | Builders | SO31 6TY | 2024 |
| Supreme UK Group Ltd | Builders | SO31 1ZL | 2020 |
| T and M Cable Services Ltd | Builders | SO31 6DF | 1994 |
| T.J. Mitcheson Ltd | Builders | SO31 6LE | 2003 |
| Talk Buildings Ltd | Builders | PO15 5TD | 2023 |
| The Collective Loft Company Ltd | Builders | SO31 7EH | 2015 |
| The Loft Ranger Ltd | Builders | SO31 7BX | 2026 |
| Thermal Services (Insulation) Ltd | Builders | SO31 7ED | 2010 |
| Thomas & Son (Builders) Ltd | Builders | PO15 5TD | 2003 |
| Trafalgar Brickwork Ltd | Builders | PO15 5TD | 2015 |
| Twin Developments Ltd | Builders | PO14 4PG | 2022 |
| Ultimate Tiling Ltd | Builders | PO14 4AR | 2024 |
| Vibe Business Interiors Ltd | Builders | PO15 5TD | 2011 |
| Victory Rose Building Services Ltd | Builders | SO31 7ED | 2015 |
| Vittorio and Caterina Ltd | Builders | SO31 1BB | 2022 |
| Wall Solutions Ltd | Builders | SO31 7GE | 2012 |
| Westminster Dredging Company Ltd | Builders | PO15 5SS | 1982 |