Thomson Reuters names eight Keystone Law partners in its Stand-out Lawyers Guide 2026
Andrea James, Andrew Darwin & Anna McKibbin
“Marie has a fantastic work ethic and provides exceptional service to her clients. Her breadth of employment law knowledge and particularly in retail is outstanding and she is also super commercial. I can always rely on Marie to provide sensible solutions to problems or to help us negotiate the best results, particularly for difficult / tricky cases.
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- Laura Keane, Group People Director, Theo Paphitis Retail Group
Marie is an employment lawyer with over 30 years’ experience, advising on both contentious and non-contentious employment matters, principally working with employers, senior executives, charities, LLPs, partnerships, and a chamber of commerce. Marie deals with senior exits, terminations and restructuring across a number of sectors including legal, retail, advertising, financial, education, construction, religious institutions and charities, and leisure.
Marie has expertise in complex discrimination claims involving race, sex, disability and religion, and in relation to diversity issues in the workplace. In addition, Marie is a leading adviser when it comes to gig economy and IR35, having been involved in several leading cases.
Marie also specialises in team moves and restrictive covenants and is a trusted advisor on day-to-day employment matters and performance management.
Marie is a well-known public speaker on TV and radio including on Question Time, Newsnight and the Today Programme and, was awarded an OBE in the New Year Honours List 2023.
Marie acts for senior employees and partners in complex discrimination, harassment, and religious discrimination claims. She has defended sensitive cases involving disability, pregnancy, and unfair dismissal across financial, engineering, and retail sectors.
Experience
Marie advises on senior exits, partnership and LLP exits, business restructures, reorganisations, large-scale redundancy, outsourcing, TUPE, team moves, and termination packages including compensation for long-term incentive plans and benefits.
Experience
Marie acts for clients on unfair dismissal, gig economy claims, and dismissals, providing strategic advice on settlement agreements, breach of contract, and enforcing restrictive covenants. She supports organisations in managing tribunal claims with restrictive reporting and confidential information.
Experience
Marie advises on directors’ service agreements, consultancy agreements, and general workplace contracts. She provides guidance on compensation for long-term incentive plans and benefits, disciplinary and grievance procedures, managing performance, and sickness absence.
Experience
Marie advises clients in the hotels, hospitality and leisure sector on HR issues, including managing staff, exits, poor attendance, layoff, theft, national minimum wage, investigations, defending claims, disciplinary and grievances, and contract reviews.
Experience
Marie provides specialist employment law advice regarding employees and volunteers, employment policies and procedures, managing workplace issues, defending employment tribunal claims, managing disputes, equality and diversity, strategic advice, redundancy, and outsourcing (TUPE) and training.
Experience
Marie advises senior management and retail managers on day-to-day issues including disciplinary and grievances, claims, exits, restructures, redundancies and the drafting of employment contracts policies and procedures.
Experience
Marie advises a broad range of professional service firms, particularly in relation to complex partnership disputes, investigations, disciplinary and exit, and represents senior executives, partners, directors, and prominent figures where reputation management is key.
Experience
Please note: The experience list above may include examples of work completed prior to joining Keystone Law.
Recognised in The Legal 500 for Employment: Employers 2024-2026
Recognised by The Legal 500 for Employment: Senior Executives 2024
OBE awarded in the 2023 New Year Honours List
Trustee for the Holocaust Memorial Trust, and a Vice President of the World Jewish Congress and their Commissioner for Gender Equality and Inclusion
Regular speaker on radio and television including Question Time, Newsnight and the Today Programme
48th President of the Board of Deputies of British Jews
“Marie van der Zyl is quick to respond with an array of skills and experience. She also has an army of colleagues with which to confer should a question stray into an area beyond her expertise.”
The Legal 500 2026
“A real passion and love for what they do, including getting the best commercial result for us. I work closely with Marie Van der Zyl who is a credit to any firm she works for and is a first class solicitor. The Legal 500 2025”
The Legal 500 2025
Marie qualified as a solicitor in 1991. Prior to joining Keystone Law in 2023, she worked at the following firms: