| 21 Moy'S Ltd | Builders | IP14 1US | 2021 |
| 3 Point Property Development Ltd | Builders | IP14 5RY | 2022 |
| 4b Building Ltd | Builders | IP14 1JA | 2021 |
| A J Stiff Construction Ltd | Builders | IP14 1JA | 2017 |
| A1 Fitters Ltd | Builders | IP7 5EL | 2016 |
| Academy Building Contracts Ltd | Builders | IP7 5EA | 2005 |
| Ajk Cabling Ltd | Builders | IP14 2PT | 2024 |
| Akenfield Homes Ltd | Builders | IP14 2PS | 2014 |
| Alan John King Ltd | Builders | IP14 3BE | 2011 |
| Alaska Developments Ltd | Builders | IP7 7DN | 2016 |
| All Aspects Landscapes Ltd | Builders | IP14 2JP | 2023 |
| Allbuild Suffolk Ltd | Builders | IP7 6RD | 2024 |
| Allbury Maintenance Services Ltd | Builders | IP14 1JA | 2011 |
| Andrew Gray Project Management Ltd | Builders | IP14 2HB | 2024 |
| Anglia Concrete Finishing Ltd | Builders | IP14 6JZ | 2025 |
| Arcforms Design & Build Ltd | Builders | IP14 5NN | 2017 |
| Ardent Lift Consultancy Ltd. | Builders | IP7 6RD | 2012 |
| Axis Commercial Interiors Ltd | Builders | IP7 6RD | 2026 |
| B. Casey Builders Ltd. | Builders | IP7 6RD | 2002 |
| B. Samson Builders Ltd | Builders | IP14 2DD | 2001 |
| Bco Building & Construction Ltd | Builders | IP14 5TB | 2022 |
| Bjbc Ltd | Builders | IP14 1JA | 2022 |
| Bloome Construction Ltd | Builders | IP7 6RD | 2016 |
| Brazier Tiling Ltd | Builders | IP14 5NQ | 2016 |
| Brett Valley Builders Ltd | Builders | IP7 7LZ | 2013 |
| Broadacre Projects Ltd | Builders | IP14 2JY | 2021 |
| Browns Ptp Ltd | Builders | IP7 6RD | 2026 |
| Bshc Contractors Ltd | Builders | IP14 1LR | 2025 |
| Buildright Suffolk Ltd | Builders | IP14 1TH | 2014 |
| C R Catton Building Ltd | Builders | IP14 1JA | 2018 |
| Catt Projects Ltd | Builders | IP7 6RH | 2022 |
| Chelsworth Ltd | Builders | IP7 7HT | 2002 |
| Cjg Brickwork Ltd | Builders | IP14 1JA | 2020 |
| Clarke Fencing Ltd | Builders | IP14 2ED | 2005 |
| Clarkes 24/7 Ltd | Builders | IP7 5EA | 2014 |
| Code-Arc Welding Services Ltd | Builders | IP14 4DQ | 2022 |
| Colemans Blinds and Shutters Ltd | Builders | IP14 6SL | 2026 |
| Colne Contracts Ltd | Builders | IP7 6RD | 2007 |
| Cor Projects Ltd | Builders | IP14 4LD | 2011 |
| Countryside Home & Garden Ltd | Builders | IP14 1JA | 2012 |
| Cpm (Suffolk) Ltd | Builders | IP14 6LR | 2024 |
| Curve Property Development Ltd | Builders | IP14 1JA | 2020 |
| D Baitan Ltd | Builders | IP14 2DJ | 2019 |
| Darren Davey Traditional Building Ltd | Builders | IP14 1JA | 2013 |
| Dbf Builders UK Ltd | Builders | IP7 6RD | 2016 |
| Dean Banyard Ltd | Builders | IP7 5HZ | 2008 |
| Deniss Construction Ltd | Builders | IP14 5JD | 2021 |
| Denvi Contractors Ltd | Builders | IP14 1JA | 2019 |
| Diamond Outdoor Ltd | Builders | IP14 3FH | 2025 |
| Dino Heating Ltd | Builders | IP14 1XN | 2026 |
| Djelo Ltd | Builders | IP14 1JA | 2013 |
| Doug Phillips Builders Ltd | Builders | IP14 6QP | 2010 |
| Dpw Construction Ltd | Builders | IP14 5DA | 2008 |
| Ds3 Ltd | Builders | IP14 5PE | 2020 |
| E.L Walker Construction Ltd | Builders | IP7 6RD | 2024 |
| Electrical Solutions Es Ltd | Builders | IP7 7NE | 2011 |
| Elm Construction Ltd | Builders | IP7 6RD | 2017 |
| Elwent Building Services Ltd | Builders | IP14 1JA | 2019 |
| Emma Plant Hire Ltd | Builders | IP14 1JF | 2020 |
| Errantco Ltd | Builders | IP14 1JA | 2013 |
| Ewart (Special Works) Ltd | Builders | IP7 5EA | 2001 |
| Farrington Building Services Ltd | Builders | IP14 3RR | 2014 |
| Fellbridge Building Services Ltd | Builders | IP14 1JA | 2013 |
| Finborough Hall Services Ltd | Builders | IP14 3BQ | 1994 |
| G & T East Anglia Ltd | Builders | IP7 6RL | 2012 |
| Gaia Energy (Installations) Ltd | Builders | IP14 5EP | 2024 |
| Gaia Energy Ltd | Builders | IP14 5EP | 2017 |
| Gd Civils & Construction Ltd | Builders | IP14 3NU | 2022 |
| Green Building (Suffolk) Ltd | Builders | IP14 6BJ | 2023 |
| Greenoak Contracts Ltd | Builders | IP14 1PU | 2023 |
| Hasler Hawkins Engineering Services Ltd | Builders | IP7 6RD | 1978 |
| Hawkins Brickwork Services Ltd | Builders | IP7 6RD | 2022 |
| Hg Trade Ltd | Builders | IP7 6RL | 2012 |
| Highfields Steel Construction Ltd | Builders | IP7 6RD | 2016 |
| Hori Ltd | Builders | IP7 6RD | 2026 |
| Hurd Carpentry & Building Ltd | Builders | IP7 6PP | 2021 |
| Inov8 Holdings Ltd | Builders | IP7 6RD | 2022 |
| Insight Technology (Suffolk) Ltd | Builders | IP14 1JA | 2020 |
| Ipswich Plant Services Ltd | Builders | IP7 6RD | 2015 |
| J & P Contracts Ltd | Builders | IP7 6LD | 2013 |
| J C Commissioning Ltd | Builders | IP14 5EP | 2001 |
| J. E. Crooks Ltd | Builders | IP14 2ES | 2005 |
| Jarvis Building Contractors Ltd | Builders | IP7 6RD | 2021 |
| Jcma Ltd | Builders | IP7 7NN | 2021 |
| Jh Carpentry & Building (Ea) Ltd | Builders | IP7 6RD | 2023 |
| Joel Whitlock Engineering Solutions Ltd | Builders | IP14 5PQ | 2019 |
| Jolly Good Building & Renovation Ltd | Builders | IP14 1JA | 2007 |
| Just Building Services Ltd | Builders | IP14 6DJ | 2023 |
| K & A Builders Ltd | Builders | IP7 6RD | 2001 |
| Kevin Hollings Quality Kitchens Ltd | Builders | IP14 4EE | 2013 |
| Keystone Fire Solutions Ltd | Builders | IP7 5SE | 2026 |
| Kitchens For Living Ltd | Builders | IP7 6RD | 2018 |
| Larkvale Homes (Gaughton) Ltd | Builders | IP14 3EB | 2017 |
| Larkvale Homes Ltd | Builders | IP14 3EB | 2014 |
| Letts Swimming Pools Ltd | Builders | IP7 6HP | 1979 |
| Lgl Landscaping Ltd | Builders | IP14 5XZ | 2024 |
| M & A Property Developments Ltd | Builders | IP7 6RD | 2017 |
| M&Cv Ltd | Builders | IP14 4RB | 2025 |
| M&W Jay Ltd | Builders | IP14 5QE | 2004 |
| Magian Ltd | Builders | IP7 7HW | 2007 |
| Magnatu Ltd | Builders | IP14 1LE | 2021 |
| Marcus Smith Property Developments Ltd | Builders | IP14 1JA | 2019 |
| Mark Bridges Carvers & Gilders Ltd | Builders | IP7 6RD | 2003 |
| Martin & Black Ltd | Builders | IP7 7EE | 2020 |
| Mba Flue Services Ltd | Builders | IP7 5SQ | 2008 |
| Mbc Electrical Testing Ltd | Builders | IP14 5FH | 2009 |
| Mc Build & Renovations Ltd | Builders | IP14 6AS | 2025 |
| Meadowsway Hadleigh Ltd | Builders | IP7 6DP | 2024 |
| Mervyn Lambert Plant Ltd | Builders | IP7 5EA | 1987 |
| Michael Belcher Ltd | Builders | IP14 1AT | 1971 |
| Michael Martin Property Ltd | Builders | IP7 6RD | 2018 |
| Mno Contracts Ltd | Builders | IP14 3BY | 2022 |
| Modern Glaze Ltd | Builders | IP7 5ES | 2024 |
| Mould Zero Ltd | Builders | IP7 6DD | 2025 |
| Msj Group Ltd | Builders | IP7 5EL | 2020 |
| Mty Dry Lining Ltd | Builders | IP14 1JA | 2021 |
| My Green Energy Group Ltd | Builders | IP7 5EA | 2024 |
| Naked House Ltd | Builders | IP14 3DU | 2015 |
| Neils Building Services Ltd | Builders | IP7 6GA | 2025 |
| New Start Renovations Ltd | Builders | IP7 6RD | 2020 |
| Nick Bray Geoservices Ltd | Builders | IP7 5JW | 2025 |
| Nidus Ltd | Builders | IP7 6LD | 2008 |
| Nordmarken Group Ltd | Builders | IP7 5EL | 2025 |
| Norfolk Signature Homes Ltd | Builders | IP14 1JA | 2023 |
| Nsew Developments Ltd | Builders | IP14 5AJ | 2020 |
| Nu-Digs Developments Ltd | Builders | IP14 1JA | 2016 |
| Oakes Building Services Ltd | Builders | IP7 6RD | 2024 |
| Oaktree Design & Construction Ltd | Builders | IP14 1JA | 2015 |
| Ontrax Groundworks Ltd | Builders | IP14 1JA | 2024 |
| Opal Bathrooms By Design Ltd. | Builders | IP7 6RD | 2008 |
| Otley Homes Jv Ltd | Builders | IP14 1JA | 2025 |
| Otley Homes Ltd | Builders | IP14 1JA | 2020 |
| Otley Homes Svp Ltd | Builders | IP14 1JA | 2023 |
| P.B Construction (London) Ltd | Builders | IP14 3JG | 2011 |
| Page-Baker Construction Ltd | Builders | IP7 6RD | 2021 |
| Patience & Hilliard Ltd | Builders | IP14 1JA | 2022 |
| Peak Automatic Gates & Fencing Ltd | Builders | IP14 5GG | 2020 |
| Perfection General Builders Ltd | Builders | IP7 6RD | 2018 |
| Prebus Ltd | Builders | IP14 1JA | 2018 |
| Project Forty Eight Ltd | Builders | IP14 6RX | 2019 |
| Protec Marine Ltd | Builders | IP14 6AA | 2022 |
| R & J Insuclad Ltd | Builders | IP14 2PX | 2003 |
| R&S Playground Installation Ltd | Builders | IP14 1JA | 2023 |
| Renpro Ltd | Builders | IP14 1JA | 2016 |
| S R Wordley Building Services Ltd | Builders | IP7 6HY | 2010 |
| S.J. Whinney Construction Ltd | Builders | IP7 5EA | 2003 |
| Sage Surveyors Ltd | Builders | IP7 6RD | 2017 |
| Sdw Services (Suffolk) Ltd | Builders | IP14 1JA | 2020 |
| Seager Construction Consultancy Ltd | Builders | IP14 1JA | 2019 |
| Sears Construction Ltd. | Builders | IP7 6RD | 2009 |