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EXTENDE

ActiveSIREN number 518 807 425Public limited company with a board of directors (SA)Est. 200971.12 · Engineering activities and related technical consultancyMassy, Île-de-France
Official record (Annuaire des entreprises) ↗
Age16 years
older than 69% of its sector
Same activity, France64,131live companies · 20020th oldest
In Massy4,274live companies · 99 in the same activity
At this address8live companies incl. this one
Employees10–19as registered · 2024

In brief

EXTENDE is a public limited company with a board of directors (SA) registered in France on 14 December 2009. At 16 years old it is older than 69% of the 64,131 live companies whose main activity is engineering activities and related technical consultancy. Its registered office is in Massy, Essonne, Île-de-France, at an address shared with 7 other live companies. 99 live companies in Massy share the same main activity.

Register details

Registered nameEXTENDE
SIREN number518 807 425
Company typePublic limited company with a board of directors (SA)
Registered office14 Avenue Carnot, 91300 Massy
Nature of business (NACE Rev. 2.1 (French NAF 2025))71.12 Engineering activities and related technical consultancy
International sector (ISIC Rev.4)M · 71 Architectural and engineering activities; technical testing and analysis

Timeline

Register events, newest first.

  • Incorporated

Register entries

From the register.

Incorporated14 December 2009
Employees10–19 (2024)

Engineering activities and related technical consultancy in France

Live companies whose main activity is 71.12: 64,131 in total, median age 9 years, 4,435 incorporated in the past 12 months.

All 64,131 companies
This company's decadeOther decades
010,00020,00030,00040,0001900s: 1591900s1930s: 11930s1940s: 11940s1950s: 501950s1960s: 1091960s1970s: 4091970s1980s: 1,9201980s1990s: 4,9801990s2000s: 12,4362000s2010s: 19,0842010s2020s: 24,9822020s
Incorporated per year, still live
02,0004,0006,0008,0002011: 1,66420112012: 1,4852013: 1,57420132014: 1,6692015: 1,83020152016: 2,0212017: 2,24920172018: 2,4062019: 2,64320192020: 2,7352021: 3,14820212022: 3,4182023: 3,84520232024: 3,9952025: 4,17420252026: 3,6652027: 22027

Location

Registered office in Massy, Essonne, Île-de-France.

Live companies in Massy4,274
Same activity in Massy99
Live companies in Essonne123,832
New in Massy, past 12 months291

Also registered at this address

7 other live companies share this registered office.

Similar companies

Live companies with the same main activity, nearest first.

Compare all
CI
CECOTECH INGENIERIEMilly-la-Forêt, Île-de-France
Number 520 363 961Est. 2010
C
CONSULTRANSSavigny-sur-Orge, Île-de-France
Number 518 522 784Est. 2009
P
PASSMilly-la-Forêt, Île-de-France
Number 520 583 436Est. 2010
AF
ART FIOrsay, Île-de-France
Number 519 456 289Est. 2010
S
SOLPROJETVerrières-le-Buisson, Île-de-France
Number 517 711 115Est. 2009
ET
ETUDE TECHNIQUE GOMES- E T GSaint-Germain-lès-Arpajon, Île-de-France
Number 519 877 435Est. 2010

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.