Thierry is an experienced employment lawyer, advising clients on workforce restructurings, transfers of undertaking and compensation & benefits. He heads the employment team and was the managing partner of the firm from 2013 to 2020.

Thierry's main sectors are Biotech and Pharma companies, staffing businesses, IT companies and transport & automotive. His clients range from large global players to local clients for whom he provides advice in French, Dutch and English.

The 'always available' Thierry Viérin leads Osborne Clarke's 'extremely responsive' team, which attracts praise for providing 'high-quality advice'. –Legal 500 

Clients agree that "It is a pleasure to work with Thierry and his team" and they are consistently "really impressed with the advice Thierry gave."

Helping you succeed in tomorrow's world

I like to provide legal advice and help our clients with the use of new tools such as digital platforms and automated contracts. I'm also interested in decarbonisation and its link with HR, and I have most recently helped clients develop strategies to structurally support a greener workplace by implementing electric car fleets or new ways of hybrid working.


Fortune 500 Business Services and Document Technology Company

Advising a Fortune 500 business services and document technology company on issues pertaining to collective labour agreements and works council issues

Leading IT Company

Assisting a leading IT company with the Belgian aspects of a multijurisdictional outsourcing of the IT services of a large car manufacturer

Leading IT Provider

Advising a leading IT provider on how to transfer its staff to a new company. The Employment law aspects of this matter were complex, and regular meetings had to be held with the new works council

International Corporation

Advising an international corporation on an innovative project involving the establishment of an online recruitment platform for its concessionaires

Indian IT and Outsourcing Company

Advising a pioneering Indian IT and outsourcing company on the TUPE transfer of technical staff from a US pharmaceuticals multinational, in connection with a wide-ranging and high value outsourcing agreement

Major Self-Storage Company

Assisting a major self-storage company with a transfer of undertakings

negotiation of a temporary agency agreement

Advising a global medical device company on a cross-border matter involving the negotiation of a temporary agency agreement with staffing businesses in Germany, the UK and Australia

a Life Sciences company

Advised a Life Sciences company on how to restructure its management and sales team