Arnold Keizer


Arnold is Head of Amsterdam Compensation, Employment & Governance.

He advises clients on a broad range of both contentious and non-contentious employment matters. He provides strategic advice and practical solutions to clients on matters including executive compensation and departures, compliance, regulatory employment law, cross-border HR projects, (European) works council matters, transfer of undertaking, contingent labour and collective labour agreement.

Arnold regularly teaches (post-)graduate courses on a variety of employment law aspects. He is member of the editorial board of the employment journal Tijdschrift Recht en Arbeid ("Law and Labour" ).

In 2014, Arnold was seconded to a Silicon Valley firm, focusing on incentive schemes and executive compensation and benefits for large technology companies.

Prior to joining the firm in 2005, Arnold worked for the International Labour Organization in Geneva, Switzerland, providing advisory work on fundamental labour standards

Published Work

A. Keizer, boekrecensie ‘De Ondernemingsraad’, [in process of publication in TRA](translation: book review on book entitled ‘the Works Council’) 

A. Keizer & S. Van der Plas, ‘SER Fusiegedragsregels 2015: inkleuring van enkele aspecten’, TRA 2024/23. (translation: SER Merger Code: coloring certain white spaces’) 

A. Keizer, ‘GPT-gebabbel’, TRA 2023/76 (column)(translation: ‘GPT chatter’) 

A. Keizer, ‘Het afwegen van appels en peren: inhoudelijke toetsing ex artikel 26 WOR van ondernemersbesluiten’, TRA 2023/18 (translation: ‘comparing apples to pears: on the substantive review of entrepreneurial decisions under article 26 of the Works Councils Act’) 

A. Keizer & S. Van der Plas, ‘SER Fusiegedragsregels’ in SDU Commentaar 2023 and 2024 (article-based legal commentary on the SER Merger Code, which covers information and consultation requirements in M&A transactions) 

He is not only a subject matter expert but also has an excellent appreciation of business needs.
Chambers 2022
Arnold is highly professional, remains calm in challenging circumstances, quickly identifies potential issues and provides practical advice which meets all expectations.
Legal500 2021



Admitted as advocaat, Netherlands, 2005  

Listed in the register of legal practice areas of the Dutch Bar Association for Arbeidsrecht (Employment law).


A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.