About US

About Us

Independent business law firm ADSTO works side by side with its clients on all their projects, in a national or international context, to anticipate and manage any type of dispute.

ADSTO was created out of the desire to meet its clients’ expectations in the best possible way and to provide clients who are seeking cross-disciplinary comprehensive advice with highly valuable assistance tailored to their needs but with controlled costs.

Attentive to its clients needs and aware of their business-oriented demands, ADSTO knows …


… how to use the law to the benefice of strategic development projects and offers strategic, innovative and yet pragmatic and high performing advices.

ADSTO benefits from the experience and reputation of its team, recognized among the best in their specialties.


So as to offer international services to its clients, ADSTO has been developing close professional relationship with foreign firms and experts, sharing the same ethics, values and high quality / high standard working methods.

ADSTO’s collaboration is regularly sought by the partners of these foreign firms and experts offices to work closely with them on international files and litigation or to participate actively to international symposium or events.



Information Technology: Claire Bernier is recognized for her expertise in the area of IT. Clients say: “She’s easy to work with; she calls me back immediately and follows things up really quickly, which is important.“.

distinction_3_adsto.png Claire Bernier is nominated by her peers for inclusion in the “Who’s who Legal” in the practice area of Telecommunications Media & Technology – Information Technology. Claire is described as an “absolute pleasure to work with” and is “an expert in computing related contracts, personal data and white collar crime relating to new technologies”.

Claire Bernier is nominated by peers and clients as one of the best lawyers in the field of Technology law and Telecommunications.

logo_inline_dark Claire Bernier is nominated in “Women in business law” and “Legal Media Group’s expert Guides” (Information Technology).


Claire Bernier is recommended in Information technology, Computer law, Internet and telecommunications. Claire is “specialized in the issues relating to personal data and usually deals with information technology litigation and cyber criminality files”.


Claire Bernier is renowned and has a strong expertise in Information Technology.

Claire Bernier has a high notoriety and is highly recommended in Technology and Innovation policy: Internet.

Claire Bernier is awarded Excellent in Electronic Health.

Claire Bernier is awarded Excellent in Telecommunications.

Claire Bernier has a high notoriety and is highly recommended in Personal data.

Claire Bernier is very well-known in Trademarks and Designs.

Pro-Bono Positions