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WORKSTEEL

ActiveSIREN number 100 766 351Simplified joint-stock company (SAS)Est. 202643.12 · Site preparationMontrouge, Île-de-France
Official record (Annuaire des entreprises) ↗
Ageless than a year
older than 3% of its sector
Same activity, France20,897live companies · 20290th oldest
In Montrouge6,500live companies
At this address21live companies incl. this one

In brief

WORKSTEEL is a simplified joint-stock company (SAS) registered in France on 9 February 2026. It is less than a year old; 97% of the 20,897 live companies whose main activity is site preparation are older. Its registered office is in Montrouge, Hauts-de-Seine, Île-de-France, at an address shared with 20 other live companies.

Register details

Registered nameWORKSTEEL
SIREN number100 766 351
Company typeSimplified joint-stock company (SAS)
Registered office10 Avenue de La Marne, 92120 Montrouge
Nature of business (NACE Rev. 2.1 (French NAF 2025))43.12 Site preparation
International sector (ISIC Rev.4)F · 43 Specialised construction activities

Timeline

Register events, newest first.

  • Incorporated

Register entries

From the register.

Incorporated9 February 2026

Site preparation in France

Live companies whose main activity is 43.12: 20,897 in total, median age 11 years, 981 incorporated in the past 12 months.

All 20,897 companies
This company's decadeOther decades
02,0004,0006,0008,0001900s: 51511900s1950s: 25251950s1960s: 1201201960s1970s: 2322321970s1980s: 6436431980s1990s: 1,5181,5181990s2000s: 4,7854,7852000s2010s: 5,9995,9992010s2020s: 7,5247,5242020s
Incorporated per year, still live
05001,0001,5002,0002011: 57520112012: 5742013: 51320132014: 4932015: 50220152016: 5422017: 68220172018: 7912019: 80520192020: 9082021: 1,25120212022: 1,2082023: 1,20820232024: 1,0322025: 1,13420252026: 783

Location

Registered office in Montrouge, Hauts-de-Seine, Île-de-France.

Live companies in Montrouge6,500
Same activity in Montrouge1
Live companies in Hauts-de-Seine241,725
New in Montrouge, past 12 months323

Also registered at this address

20 other live companies share this registered office; shown are those incorporated closest in time to this one.

Similar companies

Live companies with the same main activity, nearest first.

Compare all
P
PROBATAsnières-sur-Seine, Île-de-France
Number 100 025 865Est. 2026
T9
TBS 95Gennevilliers, Île-de-France
Number 100 597 046Est. 2025
RR
RJ RESEAUXAsnières-sur-Seine, Île-de-France
Number 107 593 980Est. 2026
BT
BM TPBourg-la-Reine, Île-de-France
Number 104 145 339Est. 2026
VS
VOIES SURESColombes, Île-de-France
Number 992 293 837Est. 2025
N
NOVABATNanterre, Île-de-France
Number 991 867 110Est. 2025

Sources

Register data: Insee, Sirene database of companies and establishments (Licence Ouverte / Open Licence 2.0), delivery of 21 October 2026. Territories: Insee, Code officiel géographique 2026. Industry names: European Union, EU Vocabularies (NACE Rev. 2.1). Context figures are computed by FirmsDB from these sources. This page is not an official register; check the company's entry in the French government business directory before relying on it.