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Data / France companies / Yvelines / Jouy-en-Josas

Companies in Jouy-en-Josas, Yvelines: 813 active companies by industry

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

813 active companies have their head office in Jouy-en-Josas, Yvelines, in the Sirene register stock dated 1 November 2026. 44 were registered in the last 12 months, 5 of them in October 2026, and 112 have employees.

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

Get companies in Jouy-en-JosasWatch new registrations in Jouy-en-Josas

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.

  • 813Active companies
  • 44Registered in the last 12 months
  • 5Registered in October 2026
  • 112 (13.8%)With employees
  • YvelinesDepartment
  • 78322Commune 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 20265
September 20262
August 20264
July 20260
June 20265
May 20262
April 20265
March 20264
February 20266
January 20263
December 20252
November 20256

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
202235
202341
202437
202549
2026 so far37

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 declared70186.2%
1 to 9 employees9311.4%
10 to 49 employees172.1%
50 to 249 employees10.1%
250 employees or more10.1%

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 estate68.20B223
Business and other management consultancy activities70.22Z77
Renting of housing68.20A34
Activities of holding companies64.20Z23
Computer systems and software consultancy62.02A16
Activities of head offices70.10Z16
Traditional restaurants56.10A15
Buying and selling of own real estate68.10Z13
Computer programming activities62.01Z12
Fund management activities66.30Z11
Legal vehicles for development programmes41.10D9
Engineering and technical consultancy71.12B9
Combined office administrative service activities82.11Z9
Real estate agencies68.31Z8
Other business support service activities n.e.c.82.99Z7
Electrical installation in all premises43.21A6
Public relations and communication activities70.21Z6
Painting and glazing43.34Z5
Taxi operation49.32Z5
Trusts, funds and similar financial entities64.30Z5
Legal vehicles for real estate portfolio management68.32B5
Other personal service activities n.e.c.96.09Z5
Bakeries and bakery-pastry shops10.71C4
Construction of detached houses41.20A4
Routine site preparation and earthworks43.12A4
General masonry and building shell work43.99C4
Dispensing chemist in specialised stores47.73Z4
Management of buildings and other real estate68.32A4
Accounting, bookkeeping and auditing activities; tax consultancy69.20Z4
Miscellaneous professional, scientific and technical activities74.90B4
Adult continuing education85.59A4
Heating and air conditioning installation43.22B3
Wood and PVC joinery installation43.32A3
Floor and wall covering43.33Z3
Other retail sale in non-specialised stores47.19B3
Fast-food restaurants56.10C3
Event catering activities56.21Z3
Other activities auxiliary to financial services, except insurance and pension funding, n.e.c.66.19B3
Advertising agencies73.11Z3
Photocopying, document preparation and other specialised office support activities82.19Z3

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
Itto Conseil1319484655 October 202670.22Zannuaire-entreprises.data.gouv.fr
Ahap Conseils1317596725 October 202670.22Zannuaire-entreprises.data.gouv.fr
Horus Systems10902871221 August 202662.01Zannuaire-entreprises.data.gouv.fr
Erjema Conseil1084276344 August 202670.22Zannuaire-entreprises.data.gouv.fr
NH Investissement10818396323 June 202666.30Zannuaire-entreprises.data.gouv.fr
Ruler HOLDING10554422518 May 202670.10Zannuaire-entreprises.data.gouv.fr
MAD Digital Marketing10390646717 April 202673.11Zannuaire-entreprises.data.gouv.fr
Asveto1034751412 April 202682.11Zannuaire-entreprises.data.gouv.fr
ALM10278770218 March 202682.11Zannuaire-entreprises.data.gouv.fr
Polome1020673945 March 202610.71Cannuaire-entreprises.data.gouv.fr
Phoenix Immobilier10207496028 February 202670.10Zannuaire-entreprises.data.gouv.fr
Process10183797927 February 202662.01Zannuaire-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.