INDIVIDUAL PROFILE

Jonathan Speck

High Net Worth 2025

Mourant

Ranked in 2 practice areas

Offshore: Trusts

Jersey

10 years ranked

Offshore: Trusts Litigation

Jersey

1 year ranked

About

Provided by Mourant

High Net Worth

Practice Areas

A Jersey Advocate and Partner of Mourant Ozannes (Jersey) LLP, Jonathan specialises in commercial litigation, principally involving contentious and non-contentious trust cases. I’ve written and lectured about these topics around the world.

Jonathan has been a Partner since 1996 and previously served as Managing Partner of the Jersey Office and President of the Law Society of Jersey between 2014 and 2017. As the Chair of Mourant Group, a role he assumed on 1 February 2025, Jonathan is responsible for Board effectiveness and engagement with shareholders and stakeholders. Previously, he served as the firm's Senior Partner.

Professional Memberships

Association of Contentious Trust and Probate Specialists.

Society of Trust and Estate Practitioners (STEP).

Industry Sector Expertise

In 2017, Jonathan was elected as an Academician of the International Academy of Estate and Trust Law in recognition of his contribution to the profession.

Chambers Review

Provided by Chambers

Chambers High Net Worth

Offshore: Trusts - Jersey

Star Individuals

Individual Editorial

Jonathan Speck is a standout lawyer in Jersey who is well regarded for his skill as a litigator and courtroom advocate. He is senior partner at Mourant, and is engaged in both contentious and non-contentious trusts work.

Learn more about this team View ranking table

Offshore: Trusts Litigation - Jersey

Star Individuals

Individual Editorial

View ranking table

Strengths

Provided by Chambers

Jonathan Speck is excellent. It is unbelievable how quickly he picks things up.
Offshore: TrustsChambers High Net Worth
You can expect Jonathan Speck to be involved in any big trust case. He is very good at managing the court.
Offshore: TrustsChambers High Net Worth
Jonathan Speck has stage presence like an actor in court. He is a star and he holds the court's ear like very few others can.
Offshore: TrustsChambers High Net Worth
Jonathan Speck is probably the best advocate at the Jersey Bar.
Offshore: TrustsChambers High Net Worth