Os Expertise Audit
Chartered accounting and audit firm in Fontenay-sous-Bois serving small, mid-sized and large French companies
Highlights
- New on EvolcAdded 2026-11-02
About Os Expertise Audit
Os Expertise Audit is an accounting firm (cabinet d'expertise comptable) that provides bookkeeping, audit, tax, payroll and HR administration, company creation support, and legal advisory services to French businesses.
Its clients range from very small companies (TPE) and SMEs to large groups, across all sectors of activity. The firm is a services business that bills for its accounting, advisory and support missions.
The firm is based in Fontenay-sous-Bois, France, and was founded in 2009. Its listed team includes chartered accountants (expert-comptable), mission managers, payroll managers, a company law jurist and an IT specialist.
Product: Accounting, audit, tax, payroll and HR administration, company creation and legal advisory services.
Jobs at Os Expertise Audit
More consulting & professional services companies
Osae Services
Cleaning, maintenance and small-works services for businesses in Paris and Île-de-France, including office and restaurant cleaningNew on EvolcOsenso
Conducts quantitative and qualitative market research for companies and institutionsNew on EvolcOsioo
Outsourced finance, management accounting and HR services for French businesses and their executivesYoung companyNew on EvolcOsircom
Consulting and engineering for operators, industrial firms and infrastructure owners managing critical telecom, IT and energy systemsYoung companyNew on EvolcOsmium Consulting
Digital transformation consulting for businesses, focused on responsible IT, product management, AI and DevOpsNew on EvolcOssflow
Open source integration, training and industrialisation services in Linux, Git and GitLab for organisationsYoung companyNew on Evolc
Website technologies
Tools and platforms detected on this company’s website, grouped by purpose. Dates record when Evolc observed them.
Content management
- WordPressHigh confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Website resourcedeclared script/iframe or software asset
Frontend frameworks
- BootstrapHigh confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Website resourcedeclared script/iframe or software asset
- jQueryHigh confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Website resourcedeclared script/iframe or software asset
Hosting
- ApacheHigh confidence
- First detected
- Last detected
- Last checked
Detection evidence
- Response headerserver
- Response headerserver
Website detection does not establish a paid subscription or company-wide use. Tools loaded after consent or sign-in may be missed. “No longer observed” does not prove the company stopped using a tool.