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BTST

ActiveSIREN number 897 843 439Simplified joint-stock company (SAS)Est. 202171.11 · Architectural activitiesRezé, Pays de la Loire
Official record (Annuaire des entreprises) ↗
Age5 years
older than 25% of its sector
Same activity, France22,658live companies · 17005th oldest
In Rezé3,378live companies · 35 in the same activity
At this address4live companies incl. this one

In brief

BTST is a simplified joint-stock company (SAS) registered in France on 26 March 2021. It is 5 years old; 75% of the 22,658 live companies whose main activity is architectural activities are older. Its registered office is in Rezé, Loire-Atlantique, Pays de la Loire, at an address shared with 3 other live companies. 35 live companies in Rezé share the same main activity.

Register details

Registered nameBTST
SIREN number897 843 439
Company typeSimplified joint-stock company (SAS)
Registered office22 Boulevard Jean Monnet, 44400 Rezé
Nature of business (NACE Rev. 2.1 (French NAF 2025))71.11 Architectural activities
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.

Incorporated26 March 2021

Architectural activities in France

Live companies whose main activity is 71.11: 22,658 in total, median age 11 years, 833 incorporated in the past 12 months.

All 22,658 companies
This company's decadeOther decades
02,5005,0007,50010,0001900s: 51511900s1910s: 111910s1950s: 111950s1960s: 11111960s1970s: 1071071970s1980s: 6816811980s1990s: 1,8601,8601990s2000s: 5,0905,0902000s2010s: 7,8717,8712010s2020s: 6,9856,9852020s
Incorporated per year, still live
05001,0001,5002,0002011: 71520112012: 6312013: 66720132014: 7142015: 76620152016: 8572017: 1,01120172018: 8892019: 97520192020: 9992021: 1,01920212022: 1,0822023: 99720232024: 1,1112025: 1,08620252026: 691

Location

Registered office in Rezé, Loire-Atlantique, Pays de la Loire.

Live companies in Rezé3,378
Same activity in Rezé35
Live companies in Loire-Atlantique148,935
New in Rezé, past 12 months174

Also registered at this address

3 other live companies share this registered office.

Similar companies

Live companies with the same main activity, nearest first.

Compare all
A
ASA ARCHITECTESGuérande, Pays de la Loire
Number 897 827 184Est. 2021
MA
MERICOM ARCHINantes, Pays de la Loire
Number 897 940 383Est. 2021
VC
VOLUMES CARRESNantes, Pays de la Loire
Number 897 483 616Est. 2021
AL
ARCHITECTURES LUDOVIC TAYEB ET ORGANISATIONNantes, Pays de la Loire
Number 894 975 200Est. 2021
MS
MAISON SAMASautron, Pays de la Loire
Number 894 251 701Est. 2021
SM
STUDIO MENTHE A L'EAUNantes, Pays de la Loire
Number 894 820 679Est. 2021

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.