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A51

ActiveSIREN number 942 698 358Simplified joint-stock company (SAS)Est. 202572.10 · Research and experimental development on natural sciences and engineeringBoulogne-Billancourt, Île-de-France
Official record (Annuaire des entreprises) ↗
Age1 year
older than 9% of its sector
Same activity, France9,367live companies · 8557th oldest
In Boulogne-Billancourt28,588live companies · 36 in the same activity
At this address135live companies incl. this one

In brief

A51 is a simplified joint-stock company (SAS) registered in France on 19 March 2025. It is 1 year old; 91% of the 9,367 live companies whose main activity is research and experimental development on natural sciences and engineering are older. Its registered office is in Boulogne-Billancourt, Hauts-de-Seine, Île-de-France, at an address shared with 134 other live companies. 36 live companies in Boulogne-Billancourt share the same main activity.

Register details

Registered nameA51
SIREN number942 698 358
Company typeSimplified joint-stock company (SAS)
Registered office117 Avenue Victor Hugo, 92100 Boulogne-Billancourt
Nature of business (NACE Rev. 2.1 (French NAF 2025))72.10 Research and experimental development on natural sciences and engineering
International sector (ISIC Rev.4)M · 72 Scientific research and development

Timeline

Register events, newest first.

  • Incorporated

Register entries

From the register.

Incorporated19 March 2025

Research and experimental development on natural sciences and engineering in France

Live companies whose main activity is 72.10: 9,367 in total, median age 12 years, 519 incorporated in the past 12 months.

All 9,367 companies
This company's decadeOther decades
01,0002,0003,0004,0001880s: 11880s1900s: 1821900s1910s: 11910s1920s: 51920s1940s: 41940s1950s: 111950s1960s: 301960s1970s: 1711970s1980s: 7741980s1990s: 1,2691990s2000s: 1,5122000s2010s: 2,4082010s2020s: 2,9992020s
Incorporated per year, still live
02004006008002011: 18920112012: 1742013: 19920132014: 2532015: 22320152016: 2672017: 28620172018: 2982019: 34420192020: 3912021: 43220212022: 3992023: 39620232024: 4462025: 52420252026: 4102027: 12027

Location

Registered office in Boulogne-Billancourt, Hauts-de-Seine, Île-de-France.

Live companies in Boulogne-Billancourt28,588
Same activity in Boulogne-Billancourt36
Live companies in Hauts-de-Seine241,725
New in Boulogne-Billancourt, past 12 months1,472

Also registered at this address

134 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
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Number 944 517 259Est. 2025
GA
GENERAL-PURPOSE AI POLICY LABPuteaux, Île-de-France
Number 941 080 152Est. 2025
WC
THE WORKPLACE COMMUNITYCourbevoie, Île-de-France
Number 941 685 851Est. 2025
LD
LA DYSOSTOSE CLEIDO-CRANIENNESuresnes, Île-de-France
Number 941 839 276Est. 2025
AA
ATX AI R&DSceaux, Île-de-France
Number 941 084 451Est. 2025
DC
DK CONSEILAntony, Île-de-France
Number 941 971 764Est. 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.