Mark Greenlees



Mark is a consultant, working within the firm’s Know-how team, having retired from being a partner at the end of 2019.

Mark has significant experience of all aspects of pensions law developed over 40 years of practice. His clients included the trustee boards of several large and high profile schemes in the financial, manufacturing, pharmaceutical and utility sectors.

Mark has been involved in some of the most innovative transactions of recent years including the transfer of over £28.5bn of assets from the Royal Mail Pension Plan to the UK government.

Mark was the Chairman of the Association of Pension Lawyers from 1997 to 1999 and is a former Chairman of its Legislative and Parliamentary Sub Committee. He also served on the Council of the Society of Pension Consultants and is a past Chairman of its Legislation Committee.

Memberships and Qualifications

Membership of professional bodies:
Association of Pension Lawyers (Full Member)

Career history

Qualified: 1979, England & Wales

Pensions experience since: 1979

Joined Sackers: 1977

Joined partnership/LLP: 1982

Consultant: 2020

Academic history


Lincoln College, University of Oxford (1972 – 1976)

Degree: BA Oxon (Jurisprudence)

Further Information


  • Described by peers as “at the top of the profession,” Mark Greenlees offers substantial experience with all major pensions issues and regularly advises trustees on complex transactions – Chambers UK 2020
  • Mark Greenlees has “a broad range of knowledge and expertise, is pragmatic yet determined and is able to assess risks and focus his help to specific problems,” notes a commentator. He advises on a wide range of issues facing pensions schemes and he works for clients in variety of sectors including financial services, manufacturing and pharmaceuticals – Chambers UK 2019
  • One impressed client says that Mark Greenlees “is the best pensions lawyer I’ve come across,” because “he is extremely client-focused with vast knowledge and experience, very easy to work with and personable.” He advises trustee boards on a full range of pensions issues – Chambers UK 2018.

Extracurricular interests and activities:

Family, Watford FC and Caterham 7s