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Contact with chambers should be made through the Practice Management Team. They are happy to discuss client requirements and provide further information on such matters as the expertise and experience of individual members, fees, working practices and languages spoken. We have members able to work in French, German, Italian, Spanish, Dutch, Swedish, Greek and Chinese (Mandarin).

Outside working hours, a member of our team is always available to be contacted on matters of an urgent nature. Contact should be made using the Chambers main number or email.

For our Singapore office, for client enquiries please contact our BD Director, Asia Pacific, Lara Quie and for all other queries please contact Lynn Quek. Out of office hours calls will automatically be diverted to our clerking team in London.

London

Twenty Essex
London
WC2R 3AL

enquiries@twentyessex.com
t: +44 20 7842 1200
DX 0009 Lond/Chan Lane

Singapore

28 Maxwell Road
#02-03
Maxwell Chambers Suites
Singapore 069120

singapore@twentyessex.com
t: +65 62257230

Contact

Contact with chambers should be made through the Practice Management Team. They are happy to discuss client requirements and provide further information on such matters as the expertise and experience of individual members, fees, working practices and languages spoken. We have members able to work in French, German, Italian, Spanish, Dutch, Swedish, Greek and Chinese (Mandarin).

Outside working hours, a member of our team is always available to be contacted on matters of an urgent nature. Contact should be made using the Chambers main number or email.

For our Singapore office, for client enquiries please contact our BD Director, Asia Pacific, Lara Quie and for all other queries please contact Lynn Quek. Out of office hours calls will automatically be diverted to our clerking team in London.

London

Twenty Essex
London
WC2R 3AL

enquiries@twentyessex.com
t: +44 20 7842 1200
DX 0009 Lond/Chan Lane

Singapore

28 Maxwell Road
#02-03
Maxwell Chambers Suites
Singapore 069120

singapore@twentyessex.com
t: +65 62257230

Sarah Grimmer

Sarah Grimmer

Call: 1998 (New Zealand)

Languages: French (fluent)

Sarah joined Twenty Essex in August 2022 as a full-time arbitrator. She has over 20 years of experience in international commercial, investment treaty, and public international law dispute resolution proceedings.

She has built an impressive professional network spanning Europe, the United Kingdom, Asia Pacific (particularly Hong Kong, Mainland China, Singapore, South Korea), Russia, North America, and Australasia.

From 2016 to 2022, Sarah served in the highly public role of Secretary-General of the Hong Kong International Arbitration Centre (HKIAC) during which time it was ranked the third most preferred institution in the world. Prior to that, she spent a decade at the Permanent Court of Arbitration (PCA) in The Hague where she administered complex inter-State, investor-State, and contractual disputes involving States, State entities, and intergovernmental organisations.

Sarah has also worked at the ICC International Court of Arbitration (ICC) in Paris administering hundreds of commercial cases under the ICC Rules of Arbitration. Prior to that she worked at Shearman & Sterling LLP in Paris and in private practice in New Zealand.

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International arbitration and other proceedings

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Professional association and taskforce appointments

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Sarah Grimmer is ‘absolutely excellent’ report peers, and ‘combines academic intelligence with great management and people skills’.

Who's Who Legal 2022

Sarah Grimmer comes highly recommended as the ‘the savviest lawyer in any arbitral institution’ and is praised as being ‘truly world class’ by market sources.

Who's Who Legal 2021

Sarah Grimmer of the HKIAC is a highly accomplished arbitration specialist, with sources lauding her as ‘a very impressive lawyer’.

Who's Who Legal 2021

The ‘outstanding’ Sarah Grimmer of the HKIAC is ‘a truly great practitioner’. Her practice runs the gamut of investment treaty and contractual disputes.

Who's Who Legal 2020

Sarah Grimmer ‘is a sharp legal mind’ who draws praise for her ‘invaluable experience in the field’ of investment treaty and contractual disputes.

Who's Who Legal 2019

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