Rachel Crosier

Senior Associate

Rachel is an international infrastructure projects lawyer.

She advises on a wide range of transactional and regulatory matters including the procurement, development, financing, construction, delivery and operation of infrastructure and transport projects, and associated regulatory frameworks. She has advised on some of the largest and most complex infrastructure projects in the world, including a number of giga projects in Saudi Arabia, and significant infrastructure projects in Africa, UAE, UK, Australia and Asia.

Rachel works with major international clients across jurisdictions and in multiple sectors including state/central government departments and agencies, equity investors, pension funds, private sector contractors and operators involved the procurement, delivery and operation of complex, high profile, major infrastructure projects such as rolling stock PPPs, and road, tunnel, port, defence and maritime projects. She often works with clients whilst embedded within their legal or project teams, and is highly regarded for her dedication and committment to the success of the projects she advises on. She has practised law for over 12 years and is a qualified lawyer in England and Wales, and NSW, Australia.


Pro bono

Advising young people on exercising their rights in law to British citizenship on behalf of the Coram Children’s Legal Centre, in collaboration with KIND UK.

Advising the firm’s chosen charity of the year, Street Child, on international legal frameworks and forums in Afghanistan, Bangladesh, Myanmar and Nepal.

Deployed on secondment to Warsaw during July 2023 at Safe Passage’s Ukraine Response Project providing pro bono legal advice to refugees fleeing Ukraine.

Deployed to deliver two week-long seminars to graduate law students at the Zambia Institute of Advanced Legal Education (ZIALE) designed to complement the curriculum and further refine student's legal drafting and negotiation skills (previous firm experience).  

Advising clients at St Hilda’s legal advice centre in London on a wide range of issues (previous firm experience).

Preparing family law materials for a “Women’s Know Your Rights Session” legal empowerment session at St Hilda’s Community Centre which helps women through training programmes and other support (previous firm experience).

Drafting a Research Agreement for the NSPCC in relation to the Young Smiles collaboration with the University of Manchester (previous firm experience).

Published Work

  • Rachel Crosier and Tresna Tunbridge (2012) “Lighting the Way”, London: Utility Week

Speaking Engagements

  • WIN, In-House Counsel Day 2020, Sydney, 18/02/2020



NSW, Australia, 2021 (Lawyer)

England and Wales, 2011 (Solicitor)


Diploma in Law, University of Sydney, 2021

Legal Practice Course, University of Law (London), 2009

Graduate Diploma in Law, University of Law (London), 2008

BA Hons, International  Business, University of Plymouth and HES Amsertdam School of Business, 2006


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.