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Data / France companies / Construction of buildings / Seine-Maritime

Construction of buildings in Seine-Maritime: 1,370 active companies

Updated November 7, 2026. Source: INSEE, base Sirene des entreprises et de leurs établissements, on data.gouv.fr.

1,370 active companies in Seine-Maritime have a main activity in NAF division 41, construction of buildings, in the Sirene register stock dated 1 November 2026. 52 were registered in the last 12 months, 4 of them in October 2026, and 202 have employees.

The request: Every company in Seine-Maritime in NAF division 41, construction of buildings, registered since 2025, with SIREN, NAF code, address and employee band. $10 of work on sign-up, no card.

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  • 1,370Active companies
  • 52Registered in the last 12 months
  • 4Registered in October 2026
  • 202 (14.7%)With employees
  • 1 November 2026Stock date

Registrations in the last 12 months

Active companies by the month their registration date falls in. The newest month is the last full month before the stock date.

MonthCompanies registered
October 20264
September 20264
August 20262
July 20268
June 20265
May 20262
April 20264
March 20262
February 20263
January 20268
December 20256
November 20254

Registrations per year

Companies registered in each year that are still active in the 1 November 2026 stock. Companies that closed earlier are not counted, so older years read low.

Year registeredActive companies
202267
202379
202497
202576
2026 so far42

By number of employees

The employee band the register holds for each company, as declared for its latest reference year.

EmployeesActive companiesShare
No employees or not declared1,16885.3%
1 to 9 employees16512.0%
10 to 49 employees322.3%
50 to 249 employees40.3%
250 employees or more10.1%

Industries

IndustryNAF codeActive companies
Legal vehicles for development programmes41.10D534
Construction of detached houses41.20A412
Residential property development41.10A197
Construction of other buildings41.20B162
Development of other buildings41.10C43
Office property development41.10B22

Newest registered companies

Newest first. Only companies with a name that is clearly a business are listed; the counts above include every active company. Each row links to the public record.

CompanySIRENRegisteredNAF codeCommuneSource
Rouen Promotion1312602597 October 202641.10ARouenannuaire-entreprises.data.gouv.fr
Aclr Partners13039073521 September 202641.10ADieppeannuaire-entreprises.data.gouv.fr
Construire1099882534 September 202641.20ARouenannuaire-entreprises.data.gouv.fr
JA2D10881281913 August 202641.10CDuclairannuaire-entreprises.data.gouv.fr
Deco S Peinture10833504324 July 202641.20ARouenannuaire-entreprises.data.gouv.fr
Normae 1010805927023 July 202641.10BLe Petit-Quevillyannuaire-entreprises.data.gouv.fr
Horizon Land 210795029723 July 202641.10ACanteleuannuaire-entreprises.data.gouv.fr
Fortys Patrimoine10761962910 July 202641.10ALe Petit-Quevillyannuaire-entreprises.data.gouv.fr
Leprevost Renovation10679854919 June 202641.10ASaint-Laurent-en-Cauxannuaire-entreprises.data.gouv.fr
H2M10649710017 June 202641.10ARouenannuaire-entreprises.data.gouv.fr

Licence Ouverte / Open Licence 2.0 (Etalab), source INSEE. Counts are of active companies in the Sirene register stock dated 1 November 2026: commercial companies (SARL, SAS, SA and the like) and civil companies such as SCI property companies. Sole traders, associations and public bodies are not counted, and the register lists dormant holding and property companies as active, so a count is of companies on the register, not of trading businesses. A company is counted under its main activity (NAF rev. 2 code) and the commune of its head office; companies whose register entry holds no NAF rev. 2 code are in the totals only. "With employees" means the register holds an employee band of one or more. Industry titles are English renderings of the INSEE labels. Contains data from INSEE, reused under the Licence Ouverte 2.0. This page is not endorsed by INSEE. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.