Data from the official company registers of 12 countries. Not an official register.

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BY.O

ActiveSIREN number 445 027 626Simplified joint-stock company (SAS)Est. 200370.20 · Business and other management consultancy activitiesParis 12e Arrondissement, Île-de-France
Official record (Annuaire des entreprises) ↗
Age23 years
older than 92% of its sector
Same activity, France217,843live companies · 17243rd oldest
In Paris 12e Arrondissement40,950live companies · 2,230 in the same activity
At this address16live companies incl. this one
Employees20–49as registered · 2024

In brief

BY.O is a simplified joint-stock company (SAS) registered in France on 10 January 2003. At 23 years old it is older than 92% of the 217,843 live companies whose main activity is business and other management consultancy activities. Its registered office is in Paris 12e Arrondissement, Paris, Île-de-France, at an address shared with 15 other live companies. 2,230 live companies in Paris 12e Arrondissement share the same main activity.

Register details

Registered nameBY.O
SIREN number445 027 626
Company typeSimplified joint-stock company (SAS)
Registered office55 B Rue de Lyon, 75012 Paris
Nature of business (NACE Rev. 2.1 (French NAF 2025))70.20 Business and other management consultancy activities
International sector (ISIC Rev.4)M · 70 Activities of head offices; management consultancy activities

Timeline

Register events, newest first.

  • Incorporated

Register entries

From the register.

Incorporated10 January 2003
Employees20–49 (2024)

Business and other management consultancy activities in France

Live companies whose main activity is 70.20: 217,843 in total, median age 6 years, 21,515 incorporated in the past 12 months.

All 217,843 companies
This company's decadeOther decades
050,000100,000150,000200,0001900s: 871900s1910s: 21910s1940s: 21940s1950s: 711950s1960s: 771960s1970s: 2621970s1980s: 2,1331980s1990s: 9,2871990s2000s: 29,7712000s2010s: 59,4262010s2020s: 116,7252020s
Incorporated per year, still live
010,00020,00030,00040,0002011: 4,34520112012: 4,2412013: 4,52620132014: 4,6862015: 5,17120152016: 5,9342017: 7,38820172018: 8,5832019: 10,10720192020: 10,9622021: 14,12220212022: 15,8602023: 16,51620232024: 19,4982025: 22,43220252026: 17,3332027: 22027

Location

Registered office in Paris 12e Arrondissement, Paris, Île-de-France.

Live companies in Paris 12e Arrondissement40,950
Same activity in Paris 12e Arrondissement2,230
Live companies in Paris907,999
New in Paris 12e Arrondissement, past 12 months2,851

Also registered at this address

15 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
N
NEFTYS.PHARMAParis 8e Arrondissement, Île-de-France
Number 444 653 794Est. 2003
A
ARINCOParis 8e Arrondissement, Île-de-France
Number 444 904 908Est. 2003
FC
FINANCE CONTACTParis 4e Arrondissement, Île-de-France
Number 444 948 590Est. 2003
C
CERTITUDEParis 19e Arrondissement, Île-de-France
Number 445 005 440Est. 2003
T
TRANSACParis 12e Arrondissement, Île-de-France
Number 480 845 700Est. 2003
HV
HUBERT VEDRINE CONSEILParis 8e Arrondissement, Île-de-France
Number 444 801 484Est. 2003

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.