| 1169 Ltd | Builders | HP2 4TP | 2014 |
| A H Loft Conversions Ltd | Builders | HP2 4TP | 2021 |
| A To Z Bespoke Kitchens Ltd | Builders | HP2 7TA | 2012 |
| A To Z Building Contractors Ltd | Builders | HP2 5LQ | 2012 |
| Aa Loft Conversions Ltd | Builders | HP2 4TP | 2021 |
| Abacus Response Ltd | Builders | HP2 5EF | 2012 |
| Acc Expert Services Ltd | Builders | HP2 4JD | 2021 |
| Adib Construction Ltd | Builders | HP2 5JL | 2026 |
| Ahmati Construction Ltd | Builders | HP1 1ER | 2026 |
| Aka Properties Solutions Ltd | Builders | HP2 5HD | 2025 |
| Albright Cleaning & Maintenance Services Ltd | Builders | HP3 9EN | 2012 |
| Alcom Environmental Ltd | Builders | HP1 3AH | 2024 |
| Alderson Building Company Ltd | Builders | HP2 4TP | 2007 |
| Alf Civil Ltd | Builders | HP3 8DP | 2025 |
| Alfred Ayres Ltd | Builders | HP2 5AZ | 2022 |
| Alv Contractors Ltd | Builders | HP2 5EF | 2026 |
| Anto & Sebi Ltd | Builders | HP2 4BX | 2018 |
| Ap Services (Herts) Ltd | Builders | HP1 3AH | 2025 |
| Apolodor Construction Services Ltd | Builders | HP3 9JJ | 2021 |
| Apolodor Ltd | Builders | HP3 9JJ | 2008 |
| Ari Scaffolding Ltd | Builders | HP2 5AX | 2025 |
| Atl Tiling Ltd | Builders | HP3 9EL | 2007 |
| B H Commercial Construction Ltd | Builders | HP2 4TP | 2019 |
| Barley Mews Management Company Ltd | Builders | HP2 7DN | 1993 |
| Belko Contractors Ltd | Builders | HP2 7AG | 2007 |
| Bennett Services Ltd | Builders | HP2 5YL | 2024 |
| Berkhamsted Construction Ltd | Builders | HP2 4TP | 2013 |
| Boxmoor Brickwork Ltd | Builders | HP3 9HB | 2023 |
| Build & More Ltd | Builders | HP2 5LE | 2018 |
| Building Better Homes Ltd | Builders | HP2 5AY | 2020 |
| Buildme Construction Ltd | Builders | HP2 5EB | 2020 |
| Buildtrust Ltd | Builders | HP1 1LA | 2008 |
| Caballero Construction Ltd | Builders | HP1 1LF | 2025 |
| Carrera Property Services Ltd | Builders | HP1 1LE | 2012 |
| Catalyst 75 Ltd | Builders | HP2 4TP | 2017 |
| Cc Building Solutions Ltd | Builders | HP2 5RT | 2018 |
| Cdk Building Services Ltd | Builders | HP1 3AH | 2010 |
| Cedarwood Home Improvements Ltd | Builders | HP2 4TP | 2023 |
| Circle Construction Ltd | Builders | HP2 5XE | 2019 |
| Clairmark Building Contractors Ltd | Builders | HP2 7TA | 1979 |
| Clamp Construction Ltd | Builders | HP1 3AH | 2022 |
| Clearway Maintenance Ltd | Builders | HP2 4BJ | 2018 |
| Closeteam Ltd | Builders | HP2 4TR | 2023 |
| Construction By Nick Ltd | Builders | HP2 5EF | 2026 |
| Construction By Peter Ltd | Builders | HP2 4QT | 2019 |
| Coppertree Construction Ltd | Builders | HP2 4TP | 2025 |
| Corrigan Building Development Ltd | Builders | HP1 1LE | 2019 |
| Cpoint Ltd | Builders | HP2 4TP | 2014 |
| Crj International (Sign) Ltd | Builders | HP2 4TP | 2017 |
| D K Brindle & Son Ltd | Builders | HP2 5JF | 2021 |
| D&D Trans Logistic Ltd | Builders | HP2 5BX | 2016 |
| Dacha Ssi Ltd | Builders | HP1 3AH | 2007 |
| Dacorum Builders Ltd | Builders | HP1 1AS | 2022 |
| Daniel Jones Construction Ltd | Builders | HP1 3AH | 2014 |
| Dh Carpenter & Joinery Ltd | Builders | HP2 4TP | 2025 |
| Eagles Roofing Ltd | Builders | HP2 4LJ | 2024 |
| Eastconstructtrans Ltd | Builders | HP2 7AN | 2020 |
| Eldergrove Property Care Ltd | Builders | HP2 4BL | 2026 |
| Elite Cable Jointing Services Ltd | Builders | HP2 5SP | 2023 |
| Evans and Co Building Ltd | Builders | HP1 1LF | 2019 |
| Exclusive Parks Ltd | Builders | HP1 1LE | 2019 |
| Factor Glass Solutions Ltd | Builders | HP1 1BZ | 2023 |
| Fast Food Bros Trading Ltd | Builders | HP2 4TP | 2022 |
| Fellows Gardens Management Ltd | Builders | HP2 7DN | 2014 |
| Flameout International Ltd | Builders | HP1 3AH | 2008 |
| Flare & Tower Inspection Services Ltd | Builders | HP1 3AH | 2015 |
| Flintstone Solutions UK Ltd | Builders | HP1 3AH | 2011 |
| Frits & Sons Ltd | Builders | HP3 9JS | 2022 |
| Gelborov Ltd | Builders | HP2 4BQ | 2015 |
| Gherman Fixing Ltd | Builders | HP2 4LH | 2007 |
| Gicaa Services Ltd | Builders | HP2 5RR | 2024 |
| Glavan Ltd | Builders | HP2 5PA | 2025 |
| Greengates Construction Ltd | Builders | HP2 4TP | 2018 |
| Gsk Property Ltd | Builders | HP3 8EX | 2011 |
| H Building Solutions Ltd | Builders | HP3 8DU | 2011 |
| H N I C Logistics Ltd | Builders | HP2 4FY | 2020 |
| Handy Sam’S Handyman Services Ltd | Builders | HP2 5DR | 2026 |
| Haque Tech Ltd | Builders | HP3 8PE | 2025 |
| Hemsure Ltd | Builders | HP2 4TR | 2024 |
| Henry Building Ltd | Builders | HP2 4EU | 2022 |
| Henry Contractors Ltd | Builders | HP3 8NE | 2026 |
| Herts Supreme Roofing Services Ltd | Builders | HP2 7AR | 2023 |
| Hobletts Consulatancy Ltd | Builders | HP2 5LP | 2026 |
| Holding Builders Ltd | Builders | HP1 3AH | 2025 |
| Holding Solutions Group Ltd | Builders | HP1 3AH | 2025 |
| Home Care Property Solutions Ltd | Builders | HP3 9JJ | 2024 |
| Hulse & Son Property Management Ltd | Builders | HP2 7AN | 2026 |
| Hyland Technical Services Ltd | Builders | HP1 1LF | 2024 |
| I & S Georgievi Construction Ltd | Builders | HP2 5BF | 2015 |
| Ihr Construction and Development Ltd | Builders | HP2 5LF | 2024 |
| Image Carpentry and Construction Ltd | Builders | HP2 4FU | 2019 |
| Infrascape Contracting Ltd | Builders | HP2 5UX | 2012 |
| Innovative Plasterers Ltd | Builders | HP1 1JE | 2025 |
| Iocosa Ltd | Builders | HP2 5HL | 2002 |
| Iris Electrical Services Ltd | Builders | HP2 5SR | 2015 |
| J London Construction Ltd | Builders | HP2 4FW | 2024 |
| J&M Ops Ltd | Builders | HP3 9EE | 2024 |
| Jas.Singh Enterprise Ltd | Builders | HP2 4EP | 2024 |
| Jbh Services Ne Ltd | Builders | HP2 4EB | 2025 |
| Jcg Building Services Ltd | Builders | HP2 4TP | 2003 |
| Jerram Design Associates Ltd | Builders | HP1 1LD | 2000 |
| Jg Shopfitting & Carpentry Ltd | Builders | HP2 5HL | 2019 |
| Jj Property Developments Ltd | Builders | HP2 4TP | 2017 |
| Jmda Interiors Ltd | Builders | HP2 5NU | 2015 |
| John Bates Inspection Ltd | Builders | HP2 5HL | 2007 |
| John Civil Engineering Ltd | Builders | HP3 8DX | 2016 |
| John Dent Services Ltd | Builders | HP1 3AH | 2019 |
| John Jones Carpentry Ltd | Builders | HP1 3AH | 2023 |
| K.B.K Construction Ltd | Builders | HP2 5JE | 2018 |
| Kalo Builders Ltd | Builders | HP1 1EH | 2023 |
| Kidd & Co (Herts) Ltd | Builders | HP1 3AH | 2024 |
| Kingley Gate Management Ltd | Builders | HP2 7DN | 2014 |
| Kmm/Landscape/Solutions Ltd | Builders | HP2 4LF | 2019 |
| Kuroba Ltd | Builders | HP2 4JY | 2026 |
| La Verdi Ltd | Builders | HP2 5NT | 2016 |
| Lav Carpentry Ltd | Builders | HP2 4JN | 2019 |
| Ler Group Ltd | Builders | HP3 8PF | 2020 |
| Lh Building Contractors Ltd | Builders | HP1 3AH | 2013 |
| Lm Brown Roofing Ltd | Builders | HP2 4TP | 2026 |
| Lora Construction Ltd | Builders | HP2 5RZ | 2018 |
| Lukasz Construction Ltd | Builders | HP2 5DD | 2009 |
| Lutus Constructions Ltd | Builders | HP2 4TR | 2019 |
| Lutus Contracts Ltd | Builders | HP2 4TR | 2021 |
| M & Mags Ltd | Builders | HP2 4HW | 2026 |
| M Cotton Ltd | Builders | HP2 4TP | 2008 |
| M. J. Waldron Ltd | Builders | HP1 3AH | 2002 |
| Maitland Brickwork Ltd | Builders | HP1 1LE | 2016 |
| Masco Doors Ltd | Builders | HP2 5NU | 2024 |
| Masco Facilities Management Ltd | Builders | HP2 5NU | 2020 |
| Maynecol Services Ltd | Builders | HP2 5HD | 1984 |
| Mcgill Homes Ltd | Builders | HP1 1LF | 1993 |
| Mckenzie Design & Build Ltd | Builders | HP3 8NG | 2011 |
| Mclaren British Construction Ltd | Builders | HP2 5DH | 2018 |
| Merton and Son Company Ltd | Builders | HP2 5NU | 2024 |
| Mg Elite Construction Ltd | Builders | HP2 5YL | 2026 |
| Milos Marbles Ltd | Builders | HP2 4BD | 2014 |
| Mjh Plastering Ltd | Builders | HP2 4TP | 2024 |
| Mjl Contract Management Ltd | Builders | HP2 4TP | 2025 |
| Modulor 123 Ltd | Builders | HP2 5DB | 2024 |
| Mondo Perfecto Ltd | Builders | HP2 5SL | 2016 |
| Mp Building Improvements Ltd | Builders | HP2 5ER | 2023 |
| Ms Builders & Construction Ltd | Builders | HP2 5SN | 2019 |
| Ms-Domus Ltd | Builders | HP2 5SU | 2014 |
| Mudra Builders Ltd | Builders | HP1 1DS | 2026 |
| Ndon Ltd | Builders | HP2 4EY | 2025 |
| Niall Ltd | Builders | HP2 4TP | 2023 |
| Njw Building & Lettings Ltd | Builders | HP2 7BW | 2025 |
| Old English Bricklayer Construction Ltd | Builders | HP2 4TP | 2025 |
| Old Town Brickwork Ltd | Builders | HP1 3AH | 2026 |
| Orange Tree Solutions Ltd | Builders | HP1 3AH | 2025 |