| 7711 Groundworks Ltd | Builders | IP6 9SZ | 2024 |
| A C Brickwork (South East) Ltd | Builders | IP6 0NL | 2013 |
| A P Clarke Ltd | Builders | IP13 0AB | 2002 |
| A W Goddard Fencing Ltd. | Builders | IP6 9SG | 2018 |
| Abacus Building & Surveying Ltd | Builders | IP6 0NL | 2005 |
| Abbey Protective Coatings Ltd | Builders | IP6 0NL | 2017 |
| Adrian Hammond Ltd | Builders | IP13 9QB | 2002 |
| Alc Carpentry & Construction Ltd | Builders | IP6 9NT | 2020 |
| Alderfields Carpentry & Building Ltd | Builders | IP6 9AB | 2025 |
| All Star Safety Ltd | Builders | IP6 0HU | 2019 |
| Ams Kitchen Fitting Ltd | Builders | IP6 8AS | 2025 |
| Anacondaunit Ltd | Builders | IP6 0HU | 2019 |
| Andaman Engineering Ltd | Builders | IP6 0NL | 2011 |
| Annica Europe Ltd | Builders | IP6 8TN | 2022 |
| Ara Carpentry & Building Ltd | Builders | IP6 0NL | 2021 |
| Armstrong Property Services (East Anglia) Ltd | Builders | IP6 9HN | 2010 |
| Arrow Property Development Ltd | Builders | IP6 0AJ | 2025 |
| Baker & King Ltd | Builders | IP13 9BQ | 2016 |
| Barridge Building Contractors Ltd | Builders | IP6 0NL | 2023 |
| Bb Construction Ltd | Builders | IP6 0JT | 1993 |
| Bechik Ltd | Builders | IP13 0DR | 2025 |
| Bencorr Ltd | Builders | IP6 9PA | 2017 |
| Bespoke Log Cabin Company Ltd | Builders | IP6 9HS | 2000 |
| Bkr Construction (Essex) Ltd | Builders | IP6 0NL | 2011 |
| Black Rooster Construction Ltd | Builders | IP13 9EZ | 2017 |
| Black Swan Developments East Anglia Ltd | Builders | IP6 0LW | 2012 |
| Blue Rock Project Solutions Ltd | Builders | IP6 9ES | 2020 |
| Bluestone Contractors Ltd | Builders | IP13 6AR | 2026 |
| Bluestone Improvements and Maintenance Ltd | Builders | IP13 6AR | 2026 |
| Boot Construction (East Anglia) Ltd | Builders | IP13 7DP | 2015 |
| Boot Consultancy and Developments Ltd | Builders | IP13 7DP | 2014 |
| Bosmere Contracting Ltd | Builders | IP6 8LL | 2020 |
| Breheny Civil Engineering Ltd | Builders | IP6 8NH | 1963 |
| Breheny Group Ltd | Builders | IP6 8NH | 2002 |
| Burgess Build Group Ltd | Builders | IP6 0FH | 2022 |
| Bw Brickworks & Son Ltd | Builders | IP6 8NF | 2013 |
| Cadman Flooring Ltd | Builders | IP6 8NZ | 2012 |
| Cadman Plant Ltd | Builders | IP6 9RF | 2007 |
| Calvert Utilities Ltd | Builders | IP6 8TN | 2015 |
| Camrouxpmc Ltd | Builders | IP13 0BA | 2018 |
| Carpark Surfacing Grids Ltd | Builders | IP6 9AR | 2013 |
| Cascade Pools (East Anglia) Ltd | Builders | IP6 8RN | 2000 |
| Charles Clarke & Son (Builders) Ltd | Builders | IP13 6TH | 1981 |
| Colnesett (East Anglia) Ltd | Builders | IP6 0NL | 2015 |
| Copping Projects Ltd | Builders | IP6 8AS | 2026 |
| Core 10 Group Ltd | Builders | IP6 0NL | 2019 |
| Cts (East) Ltd | Builders | IP6 8TR | 2014 |
| D A Formwork Ltd | Builders | IP6 0NL | 2018 |
| D B K Consultant Ltd | Builders | IP13 6RU | 2017 |
| D J Ruse Builders Ltd | Builders | IP13 6XH | 2020 |
| D M B Brickwork & Construction (Ipswich) Ltd | Builders | IP6 0NL | 2005 |
| Damp and Mould Control Ltd | Builders | IP6 8AS | 2018 |
| Deben Construction Ltd | Builders | IP6 0NL | 2017 |
| Denis Gabriel Construction Ltd | Builders | IP6 0LP | 2023 |
| Denmar Contracts Ltd | Builders | IP6 8TN | 2014 |
| Devereux Aaron Holdings Ltd | Builders | IP6 0NL | 2021 |
| Down To Earth Landscapes Ltd | Builders | IP6 0NL | 1987 |
| Dq Services (East Anglia) Ltd | Builders | IP6 0RU | 2014 |
| Ecosy Build Ltd | Builders | IP13 0AD | 2020 |
| Elliston Steady & Hawes (Building) Ltd | Builders | IP6 0JT | 1994 |
| Elmhurst Developments Ltd | Builders | IP13 0DR | 2020 |
| Energy Environmental Services Ltd | Builders | IP6 8AS | 2008 |
| Equanimity Estates Ltd | Builders | IP13 0NQ | 2022 |
| Essex Facilities Management Ltd | Builders | IP6 8AS | 2001 |
| Evolve Construct Ltd | Builders | IP13 9BB | 2017 |
| Exemplibuild Ltd | Builders | IP6 0LW | 2023 |
| F J Pawsey Ltd | Builders | IP13 9LQ | 2020 |
| Fulcher Developments Ltd | Builders | IP6 9DT | 2020 |
| G.E. Locke Builders Ltd | Builders | IP6 0NL | 2002 |
| Gallagher Property Services Ltd | Builders | IP6 0NL | 2002 |
| Gdc Build Mid Suffolk Ltd | Builders | IP6 8NT | 2022 |
| Gipping Construction Ltd | Builders | IP6 8JP | 2004 |
| Golfspace Ltd | Builders | IP6 9UN | 2024 |
| Granite & Marble Designs Ltd | Builders | IP13 9AF | 2006 |
| H.E. Locke Builders Ltd | Builders | IP6 0NL | 2002 |
| H.J. Green & Sons (Chelmsford) Ltd | Builders | IP6 8AP | 1960 |
| Hamford Mechanical Services Ltd | Builders | IP6 8HS | 2013 |
| Hds Bespoke Carpentry Ltd | Builders | IP13 0FL | 2025 |
| Heath Landscapes & Building Services Ltd | Builders | IP6 0NL | 2026 |
| Holmes Plant and Construction Ltd | Builders | IP6 9PA | 2004 |
| Hood Building & Carpentry Ltd | Builders | IP6 9AB | 2015 |
| Imperial Brickwork Ltd | Builders | IP6 0NL | 2017 |
| Ipswich Accident Repair Centre Ltd | Builders | IP6 0NL | 2001 |
| Ipswich Pro Tiling Ltd | Builders | IP6 0LY | 2019 |
| Isolutions Property Services Ltd | Builders | IP6 0NL | 2021 |
| Ivy Lodge Partnership Ltd | Builders | IP13 6AX | 2016 |
| J & B Jackson Ltd | Builders | IP13 0JG | 1967 |
| J Barry Ltd | Builders | IP13 0BA | 2023 |
| J Norman Builder Ltd | Builders | IP13 9DE | 2023 |
| J.E.D. Insulations Ltd | Builders | IP6 8AS | 2010 |
| Jakeman Solar Ltd | Builders | IP6 0NL | 2013 |
| Jb Carpentry (Ipswich) Ltd | Builders | IP6 8AS | 2017 |
| Jdm Rigging Services Ltd | Builders | IP13 9BS | 2024 |
| Jrk Drylining Ltd | Builders | IP6 0NL | 2019 |
| K&F Brothers Ltd | Builders | IP6 8NA | 2016 |
| Kerry Construction Ltd | Builders | IP6 8BU | 2018 |
| Kingsfleet Construction Ltd | Builders | IP6 8AS | 2023 |
| Kingwood Anglia Builders Ltd | Builders | IP6 0NL | 1983 |
| Kpm Contracts Ltd | Builders | IP6 9BT | 2005 |
| L J C Building Services Ltd | Builders | IP13 9NY | 2002 |
| Lakeland Building Services Ltd | Builders | IP13 6AW | 2008 |
| Lewis Grey Ltd | Builders | IP6 0EY | 2018 |
| Louisgardnercarpentry Ltd | Builders | IP6 0NL | 2022 |
| Mad 2020 Ltd | Builders | IP13 9EE | 2020 |
| Maitland Homes Ltd | Builders | IP6 8NZ | 1996 |
| Maple Building Services (Essex) Ltd | Builders | IP6 8AS | 2012 |
| Maplestone Homes Ltd | Builders | IP6 0AJ | 2016 |
| Mark Meadows Ltd | Builders | IP6 0AJ | 2018 |
| Medifit Ltd | Builders | IP6 8TN | 2025 |
| Mf Building Solutions Ltd | Builders | IP13 9HH | 2019 |
| Mf Group Construction Ltd | Builders | IP13 9HH | 2021 |
| Mid Suffolk Fencing Ltd | Builders | IP6 8XG | 1999 |
| Mjc Carpentry & Construction Ltd | Builders | IP13 9FX | 2026 |
| Mjs Building Services (Ipswich) Ltd | Builders | IP6 8HS | 2012 |
| Mnb Lay Ltd | Builders | IP6 8BF | 2022 |
| Modern Eco Living Ltd | Builders | IP6 0NL | 2001 |
| Modular Consultants Ltd | Builders | IP13 0RX | 2020 |
| Mrc Building Services Ltd | Builders | IP6 0AG | 2021 |
| N K Spinks Ltd | Builders | IP6 0NL | 2011 |
| Needham Market Academy Ltd | Builders | IP6 8DA | 2018 |
| Needham Market Aerials Ltd | Builders | IP6 8AS | 2003 |
| New Homes (Suffolk) Ltd | Builders | IP6 9JX | 2014 |
| Opus Construction Ltd | Builders | IP13 9SB | 2018 |
| Orwell Carpentry & Building Ltd | Builders | IP6 9AB | 2023 |
| P.J.A. Leadworks Ltd | Builders | IP6 0NL | 2005 |
| Palmer (Fencing) Ltd | Builders | IP6 0NL | 1994 |
| Parkinson Consultants Ltd | Builders | IP13 9LZ | 2026 |
| Parkwork Ltd | Builders | IP6 0NL | 1998 |
| Period Restoration Ltd | Builders | IP13 9JQ | 2002 |
| Prestige Pavers Ltd | Builders | IP6 0NL | 2012 |
| R.S.L Brickwork Ltd | Builders | IP6 9BQ | 2026 |
| R.S.L Construction Ltd | Builders | IP6 9BQ | 2013 |
| Rainbird Group Ltd | Builders | IP13 7AR | 1972 |
| Redbourne Homes (Beyton) Ltd | Builders | IP6 8NH | 2023 |
| Redbourne Homes (Creeting) Ltd | Builders | IP6 8NH | 2019 |
| Redbourne Homes (Epworth) Ltd | Builders | IP6 8NH | 2009 |
| Redbourne Homes (Kettleburgh) Ltd | Builders | IP6 8NH | 2023 |
| Redbourne Homes (Warboys) Ltd | Builders | IP6 8NH | 2008 |
| Redbourne Homes Ltd | Builders | IP6 8NH | 2009 |
| Redbourne Xyz Ltd | Builders | IP6 8NH | 2010 |
| Reid Carpentry Ltd | Builders | IP6 0NL | 2015 |
| Revive It Ltd | Builders | IP13 6QL | 2006 |
| Rmb Carpentry & Construction Ltd | Builders | IP6 0NL | 2025 |
| Roger Gladwell Landscaping and Construction Ltd | Builders | IP13 8AH | 2023 |
| Russell Haynes Building Services Ltd | Builders | IP6 0NL | 2003 |
| S J Wallace Builders Ltd | Builders | IP6 0NL | 2003 |
| S P M Brickwork Ltd | Builders | IP6 0NL | 2009 |
| S R Lee Builder Ltd | Builders | IP13 8BQ | 2014 |
| Sheridans Building Services Ltd | Builders | IP13 9EP | 2011 |
| Shire Homes (Anglia) Ltd | Builders | IP6 0NL | 1988 |