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OST ASSISTANCE

ActiveSIREN number 381 024 686Civil companyEst. 199164.21 · Activities of holding companiesSannois, Île-de-France
Official record (Annuaire des entreprises) ↗
Age35 years
older than 97% of its sector
Same activity, France152,180live companies · 4558th oldest
In Sannois2,541live companies · 34 in the same activity
At this address9live companies incl. this one

In brief

OST ASSISTANCE is a civil company registered in France on 8 January 1991. At 35 years old it is older than 97% of the 152,180 live companies whose main activity is activities of holding companies. Its registered office is in Sannois, Val-d'Oise, Île-de-France, at an address shared with 8 other live companies. 34 live companies in Sannois share the same main activity.

Register details

Registered nameOST ASSISTANCE
SIREN number381 024 686
Company typeCivil company
Registered office45 Boulevard Charles de Gaulle, 95110 Sannois
Nature of business (NACE Rev. 2.1 (French NAF 2025))64.21 Activities of holding companies
International sector (ISIC Rev.4)K · 64 Financial service activities, except insurance and pension funding

Timeline

Register events, newest first.

  • Incorporated

Register entries

From the register.

Incorporated8 January 1991

Activities of holding companies in France

Live companies whose main activity is 64.21: 152,180 in total, median age 10 years, 1,367 incorporated in the past 12 months.

All 152,180 companies
This company's decadeOther decades
020,00040,00060,00080,0001900s: 811900s1910s: 11910s1920s: 21920s1940s: 51940s1950s: 4531950s1960s: 3621960s1970s: 5551970s1980s: 2,3111980s1990s: 9,2361990s2000s: 29,5452000s2010s: 60,9552010s2020s: 48,6742020s
Incorporated per year, still live
05,00010,00015,00020,0002011: 4,45720112012: 4,8022013: 5,64820132014: 6,5612015: 7,27720152016: 7,8242017: 7,63520172018: 5,9702019: 6,83220192020: 7,4412021: 10,21420212022: 10,3192023: 8,08720232024: 7,6832025: 3,96220252026: 9672027: 12027

Location

Registered office in Sannois, Val-d'Oise, Île-de-France.

Live companies in Sannois2,541
Same activity in Sannois34
Live companies in Val-d'Oise139,230
New in Sannois, past 12 months146

Also registered at this address

8 other live companies share this registered office.

Similar companies

Live companies with the same main activity, nearest first.

Compare all
S
SOGELILPParmain, Île-de-France
Number 381 159 474Est. 1991
F
FINASSURArgenteuil, Île-de-France
Number 381 575 596Est. 1991
H
HOLDINSERSoisy-sous-Montmorency, Île-de-France
Number 380 117 556Est. 1990
G
GIRAUD SASaint-Ouen-l'Aumône, Île-de-France
Number 380 200 717Est. 1990
RF
RPOW (FRANCE)Herblay-sur-Seine, Île-de-France
Number 382 012 581Est. 1991
N
NRRSaint-Ouen-l'Aumône, Île-de-France
Number 378 997 613Est. 1990

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.