Regulated by GFSCGuernsey BarFIUODPA
Seven firms handle regulatory-compliance law in Guernsey — a quarter of the island's 27 legal practices, all LLPs in St Peter Port. Mourant's Guernsey history traces to Ozannes in 1842; Collas Crill formed by a 2011 merger. Six belong to Guernsey Finance; six carry parallel offices across BVI, Cayman, and Jersey. —
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St Peter Port·Professional services
✦Oldest in this niche
184-year heritage (1842)
International offshore law firm with a major Guernsey practice covering legal, entity management, and regulatory services.
St Peter Port·Professional services·Est. 1998
✦Largest team: 1300+
International legal and professional services firm providing legal, corporate and fiduciary, and consulting services, advising on BVI, Cayman, Guernsey, Irish, Jersey, and Luxembourg law.
St Peter Port·Professional services
✦Active since 1939
International offshore law firm established in 1939, serving corporate, institutional, and private clients across Guernsey, Jersey, BVI, Cayman Islands, London, and Singapore.
St Peter Port·Professional services·Est. 2011
Offshore law firm headquartered in St Peter Port, offering legal, trust and corporate services across Guernsey, Alderney, Sark and international jurisdictions.
St Peter Port·Professional services
✦128-year heritage (1898)
Offshore law firm with 21 Tier One rankings in Legal 500 UK, specialising in corporate, finance, and dispute resolution, with roots in Guernsey since 1898.
St Peter Port·Est. 1987
Limited company established in 1987, providing investment oversight and monitoring services, and is a signatory of the UN Principles for Responsible Investment.
St Peter Port
GFSC Primary Licensee and Investment Licensee, licensed to conduct controlled investment business including collective investment schemes, general securities, and derivatives.