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Data / France companies / Yvelines / Septeuil

Companies in Septeuil, Yvelines: 188 active companies by industry

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

188 active companies have their head office in Septeuil, Yvelines, in the Sirene register stock dated 1 November 2026. 13 were registered in the last 12 months, 0 of them in October 2026, and 29 have employees.

The request: Every French company with head office in Septeuil, with SIREN, NAF code, registration date, address and employee band. $10 of work on sign-up, no card.

Get companies in SepteuilWatch new registrations in Septeuil

SpecStream is the live web data engine for teams and agents. It reads the Sirene register every month, and this page is that reading. Ask for the companies you track by industry, place or registration date and each new company arrives in your sheet, CRM, Slack or agent.

  • 188Active companies
  • 13Registered in the last 12 months
  • 0Registered in October 2026
  • 29 (15.4%)With employees
  • YvelinesDepartment
  • 78591Commune code

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 20260
September 20261
August 20261
July 20261
June 20262
May 20260
April 20261
March 20262
February 20262
January 20261
December 20252
November 20250

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
20227
202312
202412
202510
2026 so far11

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 declared15984.6%
1 to 9 employees2714.4%
10 to 49 employees21.1%
50 to 249 employees00.0%
250 employees or more00.0%

Biggest industries

A link opens the industry in this town where 80 or more companies list it.

IndustryNAF codeActive companies
Renting of land and other real estate68.20B55
Business and other management consultancy activities70.22Z11
Fast-food restaurants56.10C6
Activities of head offices70.10Z6
Activities of holding companies64.20Z4
Fund management activities66.30Z4
Engineering and technical consultancy71.12B4
Traditional restaurants56.10A3
Buying and selling of own real estate68.10Z3
Real estate agencies68.31Z3
Construction of other buildings41.20B2
Water and gas installation in all premises43.22A2
Wood and PVC joinery installation43.32A2
General masonry and building shell work43.99C2
Sale of cars and light motor vehicles45.11Z2
Maintenance and repair of light motor vehicles45.20A2
Wholesale of beverages46.34Z2
Retail sale of automotive fuel in specialised stores47.30Z2
Retail sale via mail order houses with general catalogue47.91A2
Computer systems and software consultancy62.02A2
Renting of housing68.20A2
Miscellaneous professional, scientific and technical activities74.90B2
General cleaning of buildings81.21Z2
Photocopying, document preparation and other specialised office support activities82.19Z2
Other business support service activities n.e.c.82.99Z2
Hairdressing96.02A2
Growing of cereals (except rice), leguminous crops and oil seeds01.11Z1
Bakeries and bakery-pastry shops10.71C1
Manufacture of rusks, biscuits and preserved pastry goods10.72Z1
Cutting and deep drawing of metal25.50B1
Other manufacturing n.e.c.32.99Z1
Routine site preparation and earthworks43.12A1
Metal joinery and locksmith installation43.32B1
Other specialised wholesale of food46.38B1
Non-specialised wholesale of food46.39B1
Wholesale of other household goods46.49Z1
Wholesale of miscellaneous supplies and equipment for trade and services46.69C1
General food stores47.11B1
Supermarkets47.11D1
Retail sale of meat and meat products in specialised stores47.22Z1

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 codeSource
Alizee1089912746 July 202670.10Zannuaire-entreprises.data.gouv.fr
ATM10649568215 June 202646.69Cannuaire-entreprises.data.gouv.fr
Roos Retail Company1049322493 April 2026annuaire-entreprises.data.gouv.fr
Optipaierh10134911617 February 202669.20Zannuaire-entreprises.data.gouv.fr
Ecdo9925157759 October 202570.10Zannuaire-entreprises.data.gouv.fr
Pcbg9893248849 July 202543.22Aannuaire-entreprises.data.gouv.fr
Kasa Constructions94536455210 June 202541.20Bannuaire-entreprises.data.gouv.fr
Ciento9438639851 April 202562.02Aannuaire-entreprises.data.gouv.fr
Mhconseil9419865725 March 202570.10Zannuaire-entreprises.data.gouv.fr
LES Jardins de l'Avenir93995727026 November 202481.21Zannuaire-entreprises.data.gouv.fr
Concept Automobiles93510728430 October 202445.11Zannuaire-entreprises.data.gouv.fr
NS Conseil & Formation93313378712 September 202485.59Aannuaire-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.