Dr Thomas Leister supports German and foreign companies in all matters relating to individual and collective employment law. He has a particular focus on developing strategic concepts for companies in the recruitment industry.

In particular, Thomas advises staffing companies on employee leasing, independent contractors, HR compliance and cross-border projects for contingent workforce management (managed service providing, recruitment process outsourcing).

His practice also focuses on transactions, transfers of undertakings, the creation of employment contracts, and unfair dismissal proceedings. In addition, Thomas advises his clients on all aspects of industrial constitution and collective bargaining law as well as employment law in relation to insolvencies.

Thomas regularly publishes essays and publications in the specialist and daily press and holds presentations for HR specialists and for external seminar organisers, including Beck Academy, Management Circle AG.

Tobii Dynavox

Osborne Clarke advises Tobii Dynavox on its agreement to acquire Rehadapt Engineering. Read more here


Osborne Clarke advises Secomba on the sale of its encryption software to Dropbox, read more

Galileo Global Education Germany

Osborne Clarke advises Galileo on acquisition of AKAD University, read more

Addtech Nordic AB

Osborne Clarke advises Addtech Nordic AB on acquisition of systerra computer GmbH, read more

Amscan International

Osborne Clarke advises Amscan International on the acquisition of Luftballon-Markt GmbH, read more

Allgeier SE

Osborne Clarke advises Allgeier SE on the acquisition of it-novum GmbH, read more


Osborne Clarke advises Signiant on acquisition of Lesspain Software, read more

arivis AG

Osborne Clarke advises arivis AG on the sale of compliance division to BioMedion AG, read more

Allgeier Enterprise Services AG

Osborne Clarke advises Allgeier Enterprise Services AG on the acquisition of publicplan GmbH, read more

Providence Strategic Growth

Osborne Clarke advises Providence Strategic Growth on investment in Hornetsecurity, read more


Osborne Clarke named "Law Firm of the Year Germany 2020", read more

Gustoso Gruppe

Advised Gustoso group on investment in Ciao Bella, read more


Advised TomTec on its takeover by Philips, read more


Advised Allgeier on acquisition of Ciber Germany, read more

Allgeier SE

Osborne Clarke advises Allgeier SE on acquisition of iQuest Group, read more.

Contact Thomas