About us

We are an innovative European company that provides a collaborative solution to the recurring problem of increasing administrative burden imposed by compliance standards and regulations. OFA is a full-service compliance management system, based on an SaaS platform, set up with and for companies to simplify document sharing processes. The system establishes a viral B2B network between all companies in a supply chain from large groups to SMEs.


Our aim is to connect companies, simplify their day-to-day business and secure customer-supplier relations at a European level. Our ambition is to develop a “once for all” solution and enable companies to share their up-to-date administrative documents with customers across Europe; once and for all.

By developing a new interoperability standard that interconnects existing platforms from different countries, we propose a true “Once for All” solution for all contractors aiming to do business with European public or private entities.

We guarantee that each and every one of our clients obtains a complete and up-to-date vision of their whole supply chain. A Faster, Simpler, Cost-Effective and Secure way to fully manage their subcontractors’ legal compliance information in order to assure their risk is mastered. Our platform connects businesses together within a trusted European sector-based network.

Simplify the process between clients & suppliers

Save time for business

Reduce cost

Bring trust

Promote business networking & interoperability

Reinforce security

From “many to many” to “onceforall”

Our cooperation proposal

Facts and plan

Germany & Spain
Germany & Spain


Renaud Sornin

CEO & International Director

Olivier Berger

IT Director

Gudrun Müller

Back Office Assistant Germany

Marie Klein

IT Manager

Aude Genin

Business Developer Spain

Michael Schneider

Business Developer Germany

Clément Blondelle

Junior Project Manager

Gloria Lopez Montiel

Development Assistant Spain


“We want to help businesses become more competitive by reducing non-core tasks. We achieve this through value-added services that are made possible by world-class technology

Today companies are hampered in expanding beyond the border by focusing on a single market, sector and country. We are convinced that many of these obstacles can be overcome through standardization.

To make the market more open, flexible and efficient at the European level, it is our plan to bring everyone together – competitors, suppliers, contractors and the public sector – through an open standard.

We cooperate with all market participants to achieve this goal.”

Renaud Sornin, Founder and CEO of Attestation Légale