JUNIOR PROFILE

Matthieu Gregoire

UK Bar 2026

Essex Court Chambers

Ranked in 3 practice areas

International Arbitration: General Commercial & Insurance

London (Bar)

5 years ranked

Public International Law

London (Bar)

5 years ranked

Fraud: Civil

London (Bar)

1 year ranked

Chambers Review

Provided by Chambers

UK Bar

International Arbitration: General Commercial & Insurance - London (Bar)

Band 2

Individual Editorial

Matthieu Gregoire has notable experience handling LCIA and ICC arbitrations. He is astute at advising government bodies, as well as companies and individuals operating in the energy and mining sectors, among others. He is well versed in both commercial and investment treaty disputes.

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Public International Law - London (Bar)

Band 3

Individual Editorial

Matthieu Gregoire is a PIL specialist barrister with recognised expertise in BIT cases, in which he has represented both investors and defendant states. He is experienced in arbitrations before the PCA, the ICC and other bodies.

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Fraud: Civil - London (Bar)

Band 5

Individual Editorial

Matthew Gregoire is a sought-after junior barrister with expertise in civil fraud claims amongst an international arbitration practice. He acts for a variety of clients including governments and corporations and has experience acting as sole counsel against silks.

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Strengths

Provided by Chambers

Matthieu Gregoire is a leading barrister in commercial disputes and a safe bet for a future leader in international arbitration space.
International Arbitration: General Commercial & InsuranceUK Bar
Knowledgeable and hard working, he is a delight to work with.
International Arbitration: General Commercial & InsuranceUK Bar
Matthieu is very impressive, super commercial and great with clients.
International Arbitration: General Commercial & InsuranceUK Bar
Matthieu's sharp intellect has been impressive.
Public International LawUK Bar
Matthieu has a strong commercial acumen and is excellent on his feet.
Public International LawUK Bar
He is a excellent on his feet for his call. He is a straight talker who, in complex fraud cases, is able to make complex facts seem simple and to present it to the judge in the most persuasive way.
Fraud: CivilUK Bar