The account, thought to be worth a low six-figure sum annually, was won through a competitive pitch. It was previously held by Pagefield, which did not repitch.
Cicero will report to Jersey Finance head of marketing David Vieira and CEO Geoff Cook. The account team will be led by Cicero head of corporate PR and digital Mike Robb.
The brief tasks Cicero with raising Jersey’s profile as a centre of excellence and a place to do business for financial sector organisations. Cicero will provide strategic advice and crisis support, as well as day-to-day delivery across corporate communications, social media and thought leadership.
Jersey has come under fire for its role in helping companies and individuals reduce the tax they pay, with Labour leader Ed Miliband calling last year for the island to be added to an OECD blacklist for tax havens.
However, along with other overseas territories, Jersey signed an agreement in June with the UK Government to tackle tax evasion.
Robb said: "Jersey wants to be more proactive in telling its story. It's all about changing the nature of the dialogue when it comes to Jersey."He referred to a report, Jersey’s Value to Britain, prepared by research company Capital Economics for Jersey Finance earlier this year, that flagged up evidence of how Jersey's financial arrangements have helped the UK: "Alongside the corporate PR and social media work, a key area will be in thought leadership. Using evidence from reports like that one, where we can use hard data to back our campaigns, will be key."
Jersey Finance, which was formed in 2001, is funded by members of the local finance industry and the States of Jersey Government. It also has offices in Hong Kong and Abu Dhabi, and representation in London, Mumbai and Delhi.