Mourant
Mourant is an offshore law firm headquartered in Jersey and operating across major international financial centres.
Last updated August 22, 2026
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Overview
Mourant is an offshore law firm headquartered in Saint Helier, Jersey. It advises clients on legal matters associated with international finance, corporate structures, investment funds, private wealth, banking, trusts and other cross-border transactions. The firm is commonly described as one of the larger offshore legal practices and as a member of the offshore "magic circle" of leading firms in this sector. The present-day firm was formed through a series of combinations involving established law practices in the Channel Islands. Its most recent major combination was the 2010 merger of Mourant du Feu & Jeune and Ozannes, after which the business operated under the Mourant Ozannes name. The same year also marked a restructuring of the wider Mourant group: its international finance administration business was sold to State Street, its private-wealth business was sold to RBC, and its equity-compensation-solutions business was sold to HBOS. These transactions separated the legal practice from several associated administration and financial-services operations. Mourant subsequently developed an international office network while retaining its principal base in Jersey. Its listed locations include the British Virgin Islands, the Cayman Islands, Guernsey, Hong Kong, Singapore, Mauritius, Luxembourg and the United Kingdom. This geographic footprint reflects the firm's focus on jurisdictions that play important roles in international investment, corporate finance, private wealth and cross-border structuring. In 2018, the legal practice changed its formal name from Mourant Ozannes LP back to Mourant LP, bringing the operating name closer to the broader Mourant identity. The brand therefore has both a historical association with the Mourant Ozannes name and a current identity as Mourant. The firm has received industry recognition, including Offshore Firm of the Year at The Lawyer awards in 2020 and 2021. Its position is built around specialist offshore legal knowledge, multi-jurisdictional coverage and work for institutional, corporate, investment and private clients. Public discussion of the firm has also included scrutiny of the role of Jersey-based professional-services providers in international tax and corporate structures, including reporting concerning companies registered at the firm's Jersey headquarters. Such discussion concerns the wider offshore-services environment and does not by itself establish wrongdoing by Mourant.
History
Mourant emerged from the consolidation of several established offshore legal practices in the Channel Islands. Its most recent major merger was completed in 2010, when Mourant du Feu & Jeune combined with Ozannes. The resulting legal business became associated with the Mourant Ozannes name and expanded the firm's profile as a substantial offshore practice. The 2010 period also involved a significant separation between Mourant's legal operations and related financial-services businesses. Mourant International Finance Administration was sold to State Street, Mourant Private Wealth was sold to RBC, and Mourant Equity Compensation Solutions was sold to HBOS. These disposals reduced the scope of the wider group outside legal services and placed the associated administration and wealth businesses with larger financial institutions. Following the merger, Mourant maintained its principal base in Jersey while building or retaining offices in other important offshore and international financial jurisdictions. Its network came to include Guernsey, the British Virgin Islands, the Cayman Islands, Hong Kong, Singapore, Mauritius, Luxembourg and the United Kingdom. The network supports work involving cross-border investment, corporate finance, funds, banking, private wealth and disputes. In 2018, the firm changed its formal name from Mourant Ozannes LP back to Mourant LP. This represented a return to the shorter Mourant identity, while Mourant Ozannes remained a significant historical name and alias for the practice. The firm's current positioning is as an international offshore law firm rather than as a diversified financial-administration group. Mourant has been recognised within the offshore legal sector, winning The Lawyer's Offshore Firm of the Year award in both 2020 and 2021. Public commentary has also placed the firm within debates about the use of offshore jurisdictions. ActionAid reported that a large number of companies connected to multinational groups had subsidiaries registered at the address of Mourant's Jersey headquarters. That reporting reflects scrutiny of Jersey's corporate-services ecosystem and the broader offshore model; the available reference does not provide a finding that Mourant committed an offence or acted improperly.
- 2021
Second consecutive Offshore Firm of the Year award
[1]Mourant received The Lawyer's Offshore Firm of the Year award for a second successive year.
- 2020
Offshore Firm of the Year
[1]Mourant won The Lawyer's Offshore Firm of the Year award.
- 2018
Return to the Mourant name
[1]The firm's formal name changed from Mourant Ozannes LP to Mourant LP.
- 2010
Mourant du Feu & Jeune and Ozannes merge
[1]The merger created the legal practice associated with the Mourant Ozannes name and represented the latest major combination in the firm's formation history.
- 2010
Associated financial-services businesses are sold
[1]Mourant International Finance Administration was sold to State Street, Mourant Private Wealth to RBC, and Mourant Equity Compensation Solutions to HBOS.
Products and positioning
A specialist offshore law firm serving international financial, corporate, investment and private-wealth clients through a network of offices in prominent offshore and financial jurisdictions.
Legal services
Offshore legal advice
Mourant provides legal advice focused on offshore and cross-border matters. Its practice is connected with jurisdictions used for international finance, investment structures, corporate transactions and private wealth. The firm's value proposition is specialist knowledge of local law combined with coordination across several offshore and international offices.
Financial and corporate law
Corporate, finance and investment-funds services
The firm advises companies, financial institutions, funds and investors on corporate structures, banking, finance, investment funds and related transactions. These services support cross-border capital raising, acquisitions, restructurings and the establishment or operation of investment vehicles in offshore financial centres.
Private-client legal services
Private wealth and trusts advice
Mourant's private-client work covers legal issues affecting private wealth, trusts, estates and related structures. The firm's historical private-wealth business was sold to RBC in 2010; the current law-firm brand nevertheless remains associated with legal advice for private clients and wealth structures.
Controversies
Scrutiny of companies registered at the firm's Jersey headquarters
ActionAid reported that more than 200 companies connected to at least 26 multinational groups had subsidiaries incorporated at 22 Grenville Street in Jersey, the address of Mourant's headquarters. The issue was part of broader criticism of offshore corporate and tax arrangements. The available source does not establish illegal conduct by Mourant.
Brand decisions
2018
Rebranding from Mourant Ozannes to MourantStrategyBackground
After operating under the Mourant Ozannes name, the firm revised its formal legal name.
Action taken
Mourant Ozannes LP changed its name back to Mourant LP.
Aftermath
Mourant became the firm's primary current brand, while Mourant Ozannes remained a historical name.
2010
Merger of Mourant du Feu & Jeune and OzannesM&ABackground
The firms combined as part of the successive mergers that formed the modern Mourant legal practice.
Action taken
The merged practice operated under the Mourant Ozannes identity.
Aftermath
The combination strengthened the firm's position as a major offshore legal practice.
2010
Disposal of associated businessesStrategyBackground
The wider Mourant group owned businesses in finance administration, private wealth and equity compensation services.
Action taken
Those businesses were sold to State Street, RBC and HBOS respectively.
Aftermath
The transactions separated the law firm from several related financial-services operations.
Sources1 sources
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