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GUILLON EXPERTISES

ActiveSIREN number 435 153 887Simplified joint-stock company (SAS)Est. 200171.12 · Engineering activities and related technical consultancyMarly-le-Roi, Île-de-France
Official record (Annuaire des entreprises) ↗
Age25 years
older than 87% of its sector
Same activity, France64,131live companies · 8595th oldest
In Marly-le-Roi1,376live companies · 12 in the same activity
At this address47live companies incl. this one
Employees3–5as registered · 2024

In brief

GUILLON EXPERTISES is a simplified joint-stock company (SAS) registered in France on 15 February 2001. At 25 years old it is older than 87% of the 64,131 live companies whose main activity is engineering activities and related technical consultancy. Its registered office is in Marly-le-Roi, Yvelines, Île-de-France, at an address shared with 46 other live companies. 12 live companies in Marly-le-Roi share the same main activity.

Register details

Registered nameGUILLON EXPERTISES
SIREN number435 153 887
Company typeSimplified joint-stock company (SAS)
Registered office30 Av de L'amiral Lemonnier, 78160 Marly-le-Roi
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.

Incorporated15 February 2001
Employees3–5 (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 Marly-le-Roi, Yvelines, Île-de-France.

Live companies in Marly-le-Roi1,376
Same activity in Marly-le-Roi12
Live companies in Yvelines151,787
New in Marly-le-Roi, past 12 months76

Also registered at this address

46 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
GI
GESTION INTEGREE POUR L ECONOMIE D ENERGIEHoudan, Île-de-France
Number 434 628 095Est. 2001
IC
INGENIERIE CONSEIL DU BATIMENTPoissy, Île-de-France
Number 434 869 111Est. 2001
SO
SAT OCEANVersailles, Île-de-France
Number 435 157 557Est. 2001
AS
AUTOMATIC SEA VISION - ASVVélizy-Villacoublay, Île-de-France
Number 434 487 708Est. 2001
S
STUDETECHVillennes-sur-Seine, Île-de-France
Number 434 286 951Est. 2001
S
S.R.2PCroissy-sur-Seine, Île-de-France
Number 434 633 475Est. 2001

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.