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Construction · Southampton
Construction companies in Southampton
There are 3,720 construction companies registered in Southampton, spread across 22 postcode areas. Here is what they do, where they cluster, and how to get the full list.
Open Southampton on the map → Export all 3,720 construction companies on the live map
What they do — by trade
The trade mix across Southampton's 3,720 registered construction companies, by primary SIC activity:
Where they cluster — by postcode area
Registered offices by outcode — the densest is SO14 with 618 firms:
When they were founded
Company formations in the sector, by year (full calendar years):
A sample of the companies
A handful of the active construction companies registered across Southampton's postcodes:
| Company | Area |
|---|---|
| Jmac Carpentry & Building Ltd | SO19 |
| Cygna Homes Ltd | SO14 |
| Kelpie Landscape & Build Ltd | SO31 |
| Hampshire Heating And Cooling Ltd | SO31 |
| Sms Building Limited | SO15 |
| Sonridge Building Group Ltd | SO15 |
| H Roofing Services Limited | SO19 |
| Reflect Properties Ltd | SO14 |
| Avora Homes Ltd | SO14 |
| Shorelec Projects Limited | SO50 |
| Hedge End Development Group Ltd | SO15 |
| Earltech Flooring Ltd | SO31 |
Export all 3,720 construction companies in Southampton.
Each row includes the company name, number, status, incorporation date, full registered
address, postcode, SIC codes and a direct link to its Companies House record.
Quick answers
There are 3,720 construction companies with a registered office in Southampton on the Companies House register, of which 2,794 (75%) are currently active.
The SO14 postcode area has the highest concentration, with 618 of Southampton's construction companies registered there.
354 new construction companies were incorporated in Southampton during 2025, the most recent complete year on the register.